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1172 lines
33 KiB
PHP
1172 lines
33 KiB
PHP
<?php
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/*
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version V4.20 22 Feb 2004 (c) 2000-2004 John Lim. All rights reserved.
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Latest version is available at http://php.weblogs.com/
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Code contributed by George Fourlanos <fou@infomap.gr>
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13 Nov 2000 jlim - removed all ora_* references.
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*/
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/*
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NLS_Date_Format
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Allows you to use a date format other than the Oracle Lite default. When a literal
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character string appears where a date value is expected, the Oracle Lite database
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tests the string to see if it matches the formats of Oracle, SQL-92, or the value
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specified for this parameter in the POLITE.INI file. Setting this parameter also
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defines the default format used in the TO_CHAR or TO_DATE functions when no
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other format string is supplied.
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For Oracle the default is dd-mon-yy or dd-mon-yyyy, and for SQL-92 the default is
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yy-mm-dd or yyyy-mm-dd.
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Using 'RR' in the format forces two-digit years less than or equal to 49 to be
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interpreted as years in the 21st century (2000–2049), and years over 50 as years in
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the 20th century (1950–1999). Setting the RR format as the default for all two-digit
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year entries allows you to become year-2000 compliant. For example:
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NLS_DATE_FORMAT='RR-MM-DD'
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You can also modify the date format using the ALTER SESSION command.
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*/
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class ADODB_oci8 extends ADOConnection {
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var $databaseType = 'oci8';
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var $dataProvider = 'oci8';
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var $replaceQuote = "''"; // string to use to replace quotes
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var $concat_operator='||';
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var $sysDate = "TRUNC(SYSDATE)";
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var $sysTimeStamp = 'SYSDATE';
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var $metaDatabasesSQL = "SELECT USERNAME FROM ALL_USERS WHERE USERNAME NOT IN ('SYS','SYSTEM','DBSNMP','OUTLN') ORDER BY 1";
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var $_stmt;
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var $_commit = OCI_COMMIT_ON_SUCCESS;
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var $_initdate = true; // init date to YYYY-MM-DD
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var $metaTablesSQL = "select table_name,table_type from cat where table_type in ('TABLE','VIEW')";
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var $metaColumnsSQL = "select cname,coltype,width, SCALE, PRECISION, NULLS, DEFAULTVAL from col where tname='%s' order by colno"; //changed by smondino@users.sourceforge. net
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var $_bindInputArray = true;
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var $hasGenID = true;
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var $_genIDSQL = "SELECT (%s.nextval) FROM DUAL";
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var $_genSeqSQL = "CREATE SEQUENCE %s START WITH %s";
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var $_dropSeqSQL = "DROP SEQUENCE %s";
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var $hasAffectedRows = true;
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var $random = "abs(mod(DBMS_RANDOM.RANDOM,10000001)/10000000)";
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var $noNullStrings = false;
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var $connectSID = false;
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var $_bind = false;
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var $_hasOCIFetchStatement = false;
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var $_getarray = false; // currently not working
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var $leftOuter = ''; // oracle wierdness, $col = $value (+) for LEFT OUTER, $col (+)= $value for RIGHT OUTER
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var $session_sharing_force_blob = false; // alter session on updateblob if set to true
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var $firstrows = true; // enable first rows optimization on SelectLimit()
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var $selectOffsetAlg1 = 100; // when to use 1st algorithm of selectlimit.
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var $NLS_DATE_FORMAT = 'YYYY-MM-DD'; // To include time, use 'RRRR-MM-DD HH24:MI:SS'
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var $useDBDateFormatForTextInput=false;
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var $datetime = false; // MetaType('DATE') returns 'D' (datetime==false) or 'T' (datetime == true)
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// var $ansiOuter = true; // if oracle9
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function ADODB_oci8()
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{
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$this->_hasOCIFetchStatement = ADODB_PHPVER >= 0x4200;
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}
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/* Function &MetaColumns($table) added by smondino@users.sourceforge.net*/
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function &MetaColumns($table)
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{
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global $ADODB_FETCH_MODE;
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$save = $ADODB_FETCH_MODE;
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$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
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if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
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$rs = $this->Execute(sprintf($this->metaColumnsSQL,strtoupper($table)));
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if (isset($savem)) $this->SetFetchMode($savem);
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$ADODB_FETCH_MODE = $save;
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if (!$rs) return false;
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$retarr = array();
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while (!$rs->EOF) { //print_r($rs->fields);
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$fld = new ADOFieldObject();
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$fld->name = $rs->fields[0];
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$fld->type = $rs->fields[1];
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$fld->max_length = $rs->fields[2];
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$fld->scale = $rs->fields[3];
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if ($rs->fields[1] == 'NUMBER' && $rs->fields[3] == 0) {
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$fld->type ='INT';
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$fld->max_length = $rs->fields[4];
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}
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$fld->not_null = (strncmp($rs->fields[5], 'NOT',3) === 0);
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$fld->binary = (strpos($fld->type,'BLOB') !== false);
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$fld->default_value = $rs->fields[6];
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if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld;
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else $retarr[strtoupper($fld->name)] = $fld;
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$rs->MoveNext();
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}
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$rs->Close();
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return $retarr;
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}
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/*
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Multiple modes of connection are supported:
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a. Local Database
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$conn->Connect(false,'scott','tiger');
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b. From tnsnames.ora
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$conn->Connect(false,'scott','tiger',$tnsname);
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$conn->Connect($tnsname,'scott','tiger');
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c. Server + service name
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$conn->Connect($serveraddress,'scott,'tiger',$service_name);
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d. Server + SID
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$conn->connectSID = true;
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$conn->Connect($serveraddress,'scott,'tiger',$SID);
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Example TNSName:
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---------------
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NATSOFT.DOMAIN =
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(DESCRIPTION =
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(ADDRESS_LIST =
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(ADDRESS = (PROTOCOL = TCP)(HOST = kermit)(PORT = 1523))
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)
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(CONNECT_DATA =
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(SERVICE_NAME = natsoft.domain)
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)
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)
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There are 3 connection modes, 0 = non-persistent, 1 = persistent, 2 = force new connection
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*/
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function _connect($argHostname, $argUsername, $argPassword, $argDatabasename,$mode=0)
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{
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if (!function_exists('OCIPLogon')) return false;
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$this->_errorMsg = false;
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$this->_errorCode = false;
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if($argHostname) { // added by Jorma Tuomainen <jorma.tuomainen@ppoy.fi>
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if (empty($argDatabasename)) $argDatabasename = $argHostname;
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else {
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if(strpos($argHostname,":")) {
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$argHostinfo=explode(":",$argHostname);
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$argHostname=$argHostinfo[0];
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$argHostport=$argHostinfo[1];
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} else {
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$argHostport="1521";
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}
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if ($this->connectSID) {
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$argDatabasename="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=".$argHostname
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.")(PORT=$argHostport))(CONNECT_DATA=(SID=$argDatabasename)))";
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} else
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$argDatabasename="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=".$argHostname
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.")(PORT=$argHostport))(CONNECT_DATA=(SERVICE_NAME=$argDatabasename)))";
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}
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}
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//if ($argHostname) print "<p>Connect: 1st argument should be left blank for $this->databaseType</p>";
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if ($mode==1) {
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$this->_connectionID = OCIPLogon($argUsername,$argPassword, $argDatabasename);
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if ($this->_connectionID && $this->autoRollback) OCIrollback($this->_connectionID);
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} else if ($mode==2) {
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$this->_connectionID = OCINLogon($argUsername,$argPassword, $argDatabasename);
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} else {
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$this->_connectionID = OCILogon($argUsername,$argPassword, $argDatabasename);
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}
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if ($this->_connectionID === false) return false;
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if ($this->_initdate) {
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$this->Execute("ALTER SESSION SET NLS_DATE_FORMAT='".$this->NLS_DATE_FORMAT."'");
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}
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// looks like:
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// Oracle8i Enterprise Edition Release 8.1.7.0.0 - Production With the Partitioning option JServer Release 8.1.7.0.0 - Production
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// $vers = OCIServerVersion($this->_connectionID);
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// if (strpos($vers,'8i') !== false) $this->ansiOuter = true;
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return true;
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}
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function ServerInfo()
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{
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$arr['compat'] = $this->GetOne('select value from sys.database_compatible_level');
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$arr['description'] = @OCIServerVersion($this->_connectionID);
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$arr['version'] = ADOConnection::_findvers($arr['description']);
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return $arr;
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}
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// returns true or false
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function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename,1);
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}
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// returns true or false
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function _nconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename,2);
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}
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function _affectedrows()
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{
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if (is_resource($this->_stmt)) return @OCIRowCount($this->_stmt);
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return 0;
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}
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function IfNull( $field, $ifNull )
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{
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return " NVL($field, $ifNull) "; // if Oracle
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}
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// format and return date string in database date format
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function DBDate($d)
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{
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if (empty($d) && $d !== 0) return 'null';
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if (is_string($d)) $d = ADORecordSet::UnixDate($d);
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return "TO_DATE(".adodb_date($this->fmtDate,$d).",'".$this->NLS_DATE_FORMAT."')";
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}
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// format and return date string in database timestamp format
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function DBTimeStamp($ts)
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{
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if (empty($ts) && $ts !== 0) return 'null';
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if (is_string($ts)) $ts = ADORecordSet::UnixTimeStamp($ts);
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return 'TO_DATE('.adodb_date($this->fmtTimeStamp,$ts).",'RRRR-MM-DD, HH:MI:SS AM')";
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}
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function RowLock($tables,$where)
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{
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if ($this->autoCommit) $this->BeginTrans();
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return $this->GetOne("select 1 as ignore from $tables where $where for update");
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}
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function &MetaTables($ttype=false,$showSchema=false,$mask=false)
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{
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if ($mask) {
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$save = $this->metaTablesSQL;
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$mask = $this->qstr(strtoupper($mask));
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$this->metaTablesSQL .= " AND table_name like $mask";
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}
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$ret =& ADOConnection::MetaTables($ttype,$showSchema);
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if ($mask) {
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$this->metaTablesSQL = $save;
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}
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return $ret;
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}
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function BeginTrans()
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{
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if ($this->transOff) return true;
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$this->transCnt += 1;
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$this->autoCommit = false;
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$this->_commit = OCI_DEFAULT;
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return true;
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}
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function CommitTrans($ok=true)
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{
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if ($this->transOff) return true;
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if (!$ok) return $this->RollbackTrans();
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if ($this->transCnt) $this->transCnt -= 1;
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$ret = OCIcommit($this->_connectionID);
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$this->_commit = OCI_COMMIT_ON_SUCCESS;
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$this->autoCommit = true;
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return $ret;
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}
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function RollbackTrans()
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{
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if ($this->transOff) return true;
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if ($this->transCnt) $this->transCnt -= 1;
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$ret = OCIrollback($this->_connectionID);
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$this->_commit = OCI_COMMIT_ON_SUCCESS;
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$this->autoCommit = true;
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return $ret;
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}
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||
|
||
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function SelectDB($dbName)
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{
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return false;
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}
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function ErrorMsg()
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{
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if ($this->_errorMsg !== false) return $this->_errorMsg;
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|
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if (is_resource($this->_stmt)) $arr = @OCIerror($this->_stmt);
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if (empty($arr)) {
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$arr = @OCIerror($this->_connectionID);
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if ($arr === false) $arr = @OCIError();
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if ($arr === false) return '';
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}
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$this->_errorMsg = $arr['message'];
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$this->_errorCode = $arr['code'];
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return $this->_errorMsg;
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||
}
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||
|
||
function ErrorNo()
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||
{
|
||
if ($this->_errorCode !== false) return $this->_errorCode;
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||
|
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if (is_resource($this->_stmt)) $arr = @OCIError($this->_stmt);
|
||
if (empty($arr)) {
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$arr = @OCIError($this->_connectionID);
|
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if ($arr == false) $arr = @OCIError();
|
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if ($arr == false) return '';
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}
|
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|
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$this->_errorMsg = $arr['message'];
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$this->_errorCode = $arr['code'];
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||
|
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return $arr['code'];
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}
|
||
|
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// Format date column in sql string given an input format that understands Y M D
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function SQLDate($fmt, $col=false)
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{
|
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if (!$col) $col = $this->sysTimeStamp;
|
||
$s = 'TO_CHAR('.$col.",'";
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||
|
||
$len = strlen($fmt);
|
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for ($i=0; $i < $len; $i++) {
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$ch = $fmt[$i];
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switch($ch) {
|
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case 'Y':
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case 'y':
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$s .= 'YYYY';
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break;
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||
case 'Q':
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case 'q':
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$s .= 'Q';
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break;
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|
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case 'M':
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$s .= 'Mon';
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break;
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||
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case 'm':
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$s .= 'MM';
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||
break;
|
||
case 'D':
|
||
case 'd':
|
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$s .= 'DD';
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break;
|
||
|
||
case 'H':
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$s.= 'HH24';
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break;
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||
|
||
case 'h':
|
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$s .= 'HH';
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break;
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||
|
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case 'i':
|
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$s .= 'MI';
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break;
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||
|
||
case 's':
|
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$s .= 'SS';
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break;
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||
|
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case 'a':
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case 'A':
|
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$s .= 'AM';
|
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break;
|
||
|
||
default:
|
||
// handle escape characters...
|
||
if ($ch == '\\') {
|
||
$i++;
|
||
$ch = substr($fmt,$i,1);
|
||
}
|
||
if (strpos('-/.:;, ',$ch) !== false) $s .= $ch;
|
||
else $s .= '"'.$ch.'"';
|
||
|
||
}
|
||
}
|
||
return $s. "')";
|
||
}
|
||
|
||
|
||
/*
|
||
This algorithm makes use of
|
||
|
||
a. FIRST_ROWS hint
|
||
The FIRST_ROWS hint explicitly chooses the approach to optimize response time,
|
||
that is, minimum resource usage to return the first row. Results will be returned
|
||
as soon as they are identified.
|
||
|
||
b. Uses rownum tricks to obtain only the required rows from a given offset.
|
||
As this uses complicated sql statements, we only use this if the $offset >= 100.
|
||
This idea by Tomas V V Cox.
|
||
|
||
This implementation does not appear to work with oracle 8.0.5 or earlier. Comment
|
||
out this function then, and the slower SelectLimit() in the base class will be used.
|
||
*/
|
||
function &SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
|
||
{
|
||
// seems that oracle only supports 1 hint comment in 8i
|
||
if ($this->firstrows) {
|
||
if (strpos($sql,'/*+') !== false)
|
||
$sql = str_replace('/*+ ','/*+FIRST_ROWS ',$sql);
|
||
else
|
||
$sql = preg_replace('/^[ \t\n]*select/i','SELECT /*+FIRST_ROWS*/',$sql);
|
||
}
|
||
|
||
if ($offset < $this->selectOffsetAlg1) {
|
||
if ($nrows > 0) {
|
||
if ($offset > 0) $nrows += $offset;
|
||
//$inputarr['adodb_rownum'] = $nrows;
|
||
if ($this->databaseType == 'oci8po') {
|
||
$sql = "select * from ($sql) where rownum <= ?";
|
||
} else {
|
||
$sql = "select * from ($sql) where rownum <= :adodb_offset";
|
||
}
|
||
$inputarr['adodb_offset'] = $nrows;
|
||
$nrows = -1;
|
||
}
|
||
// note that $nrows = 0 still has to work ==> no rows returned
|
||
|
||
$rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
|
||
return $rs;
|
||
|
||
} else {
|
||
// Algorithm by Tomas V V Cox, from PEAR DB oci8.php
|
||
|
||
// Let Oracle return the name of the columns
|
||
$q_fields = "SELECT * FROM ($sql) WHERE NULL = NULL";
|
||
if (!$stmt = OCIParse($this->_connectionID, $q_fields)) {
|
||
return false;
|
||
}
|
||
|
||
if (is_array($inputarr)) {
|
||
foreach($inputarr as $k => $v) {
|
||
if (is_array($v)) {
|
||
if (sizeof($v) == 2) // suggested by g.giunta@libero.
|
||
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1]);
|
||
else
|
||
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]);
|
||
} else {
|
||
$len = -1;
|
||
if ($v === ' ') $len = 1;
|
||
if (isset($bindarr)) { // is prepared sql, so no need to ocibindbyname again
|
||
$bindarr[$k] = $v;
|
||
} else { // dynamic sql, so rebind every time
|
||
OCIBindByName($stmt,":$k",$inputarr[$k],$len);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!OCIExecute($stmt, OCI_DEFAULT)) {
|
||
OCIFreeStatement($stmt);
|
||
return false;
|
||
}
|
||
|
||
$ncols = OCINumCols($stmt);
|
||
for ( $i = 1; $i <= $ncols; $i++ ) {
|
||
$cols[] = '"'.OCIColumnName($stmt, $i).'"';
|
||
}
|
||
$result = false;
|
||
|
||
OCIFreeStatement($stmt);
|
||
$fields = implode(',', $cols);
|
||
$nrows += $offset;
|
||
$offset += 1; // in Oracle rownum starts at 1
|
||
|
||
if ($this->databaseType == 'oci8po') {
|
||
$sql = "SELECT $fields FROM".
|
||
"(SELECT rownum as adodb_rownum, $fields FROM".
|
||
" ($sql) WHERE rownum <= ?".
|
||
") WHERE adodb_rownum >= ?";
|
||
} else {
|
||
$sql = "SELECT $fields FROM".
|
||
"(SELECT rownum as adodb_rownum, $fields FROM".
|
||
" ($sql) WHERE rownum <= :adodb_nrows".
|
||
") WHERE adodb_rownum >= :adodb_offset";
|
||
}
|
||
$inputarr['adodb_nrows'] = $nrows;
|
||
$inputarr['adodb_offset'] = $offset;
|
||
|
||
if ($secs2cache>0) $rs =& $this->CacheExecute($secs2cache, $sql,$inputarr);
|
||
else $rs =& $this->Execute($sql,$inputarr);
|
||
return $rs;
|
||
}
|
||
|
||
}
|
||
|
||
/**
|
||
* Usage:
|
||
* Store BLOBs and CLOBs
|
||
*
|
||
* Example: to store $var in a blob
|
||
*
|
||
* $conn->Execute('insert into TABLE (id,ablob) values(12,empty_blob())');
|
||
* $conn->UpdateBlob('TABLE', 'ablob', $varHoldingBlob, 'ID=12', 'BLOB');
|
||
*
|
||
* $blobtype supports 'BLOB' and 'CLOB', but you need to change to 'empty_clob()'.
|
||
*
|
||
* to get length of LOB:
|
||
* select DBMS_LOB.GETLENGTH(ablob) from TABLE
|
||
*
|
||
* If you are using CURSOR_SHARING = force, it appears this will case a segfault
|
||
* under oracle 8.1.7.0. Run:
|
||
* $db->Execute('ALTER SESSION SET CURSOR_SHARING=EXACT');
|
||
* before UpdateBlob() then...
|
||
*/
|
||
|
||
function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB')
|
||
{
|
||
|
||
//if (strlen($val) < 4000) return $this->Execute("UPDATE $table SET $column=:blob WHERE $where",array('blob'=>$val)) != false;
|
||
|
||
switch(strtoupper($blobtype)) {
|
||
default: ADOConnection::outp("<b>UpdateBlob</b>: Unknown blobtype=$blobtype"); return false;
|
||
case 'BLOB': $type = OCI_B_BLOB; break;
|
||
case 'CLOB': $type = OCI_B_CLOB; break;
|
||
}
|
||
|
||
if ($this->databaseType == 'oci8po')
|
||
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO ?";
|
||
else
|
||
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO :blob";
|
||
|
||
$desc = OCINewDescriptor($this->_connectionID, OCI_D_LOB);
|
||
$arr['blob'] = array($desc,-1,$type);
|
||
if ($this->session_sharing_force_blob) $this->Execute('ALTER SESSION SET CURSOR_SHARING=EXACT');
|
||
$commit = $this->autoCommit;
|
||
if ($commit) $this->BeginTrans();
|
||
$rs = ADODB_oci8::Execute($sql,$arr);
|
||
if ($rez = !empty($rs)) $desc->save($val);
|
||
$desc->free();
|
||
if ($commit) $this->CommitTrans();
|
||
if ($this->session_sharing_force_blob) $this->Execute('ALTER SESSION SET CURSOR_SHARING=FORCE');
|
||
|
||
if ($rez) $rs->Close();
|
||
return $rez;
|
||
}
|
||
|
||
/**
|
||
* Usage: store file pointed to by $var in a blob
|
||
*/
|
||
function UpdateBlobFile($table,$column,$val,$where,$blobtype='BLOB')
|
||
{
|
||
switch(strtoupper($blobtype)) {
|
||
default: ADOConnection::outp( "<b>UpdateBlob</b>: Unknown blobtype=$blobtype"); return false;
|
||
case 'BLOB': $type = OCI_B_BLOB; break;
|
||
case 'CLOB': $type = OCI_B_CLOB; break;
|
||
}
|
||
|
||
if ($this->databaseType == 'oci8po')
|
||
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO ?";
|
||
else
|
||
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}() WHERE $where RETURNING $column INTO :blob";
|
||
|
||
$desc = OCINewDescriptor($this->_connectionID, OCI_D_LOB);
|
||
$arr['blob'] = array($desc,-1,$type);
|
||
|
||
$this->BeginTrans();
|
||
$rs = ADODB_oci8::Execute($sql,$arr);
|
||
if ($rez = !empty($rs)) $desc->savefile($val);
|
||
$desc->free();
|
||
$this->CommitTrans();
|
||
|
||
if ($rez) $rs->Close();
|
||
return $rez;
|
||
}
|
||
|
||
/*
|
||
Example of usage:
|
||
|
||
$stmt = $this->Prepare('insert into emp (empno, ename) values (:empno, :ename)');
|
||
*/
|
||
function Prepare($sql,$cursor=false)
|
||
{
|
||
static $BINDNUM = 0;
|
||
|
||
$stmt = OCIParse($this->_connectionID,$sql);
|
||
|
||
if (!$stmt) return false;
|
||
|
||
$BINDNUM += 1;
|
||
|
||
if (@OCIStatementType($stmt) == 'BEGIN') {
|
||
return array($sql,$stmt,0,$BINDNUM, ($cursor) ? OCINewCursor($this->_connectionID) : false);
|
||
}
|
||
|
||
return array($sql,$stmt,0,$BINDNUM);
|
||
}
|
||
|
||
/*
|
||
Call an oracle stored procedure and return a cursor variable.
|
||
Convert the cursor variable into a recordset.
|
||
Concept by Robert Tuttle robert@ud.com
|
||
|
||
Example:
|
||
Note: we return a cursor variable in :RS2
|
||
$rs = $db->ExecuteCursor("BEGIN adodb.open_tab(:RS2); END;",'RS2');
|
||
|
||
$rs = $db->ExecuteCursor(
|
||
"BEGIN :RS2 = adodb.getdata(:VAR1); END;",
|
||
'RS2',
|
||
array('VAR1' => 'Mr Bean'));
|
||
|
||
*/
|
||
function &ExecuteCursor($sql,$cursorName='rs',$params=false)
|
||
{
|
||
$stmt = ADODB_oci8::Prepare($sql,true); # true to allocate OCINewCursor
|
||
|
||
if (is_array($stmt) && sizeof($stmt) >= 5) {
|
||
$this->Parameter($stmt, $ignoreCur, $cursorName, false, -1, OCI_B_CURSOR);
|
||
if ($params) {
|
||
foreach($params as $k => $v) {
|
||
$this->Parameter($stmt,$params[$k], $k);
|
||
}
|
||
}
|
||
}
|
||
return $this->Execute($stmt);
|
||
}
|
||
|
||
/*
|
||
Bind a variable -- very, very fast for executing repeated statements in oracle.
|
||
Better than using
|
||
for ($i = 0; $i < $max; $i++) {
|
||
$p1 = ?; $p2 = ?; $p3 = ?;
|
||
$this->Execute("insert into table (col0, col1, col2) values (:0, :1, :2)",
|
||
array($p1,$p2,$p3));
|
||
}
|
||
|
||
Usage:
|
||
$stmt = $DB->Prepare("insert into table (col0, col1, col2) values (:0, :1, :2)");
|
||
$DB->Bind($stmt, $p1);
|
||
$DB->Bind($stmt, $p2);
|
||
$DB->Bind($stmt, $p3);
|
||
for ($i = 0; $i < $max; $i++) {
|
||
$p1 = ?; $p2 = ?; $p3 = ?;
|
||
$DB->Execute($stmt);
|
||
}
|
||
|
||
Some timings:
|
||
** Test table has 3 cols, and 1 index. Test to insert 1000 records
|
||
Time 0.6081s (1644.60 inserts/sec) with direct OCIParse/OCIExecute
|
||
Time 0.6341s (1577.16 inserts/sec) with ADOdb Prepare/Bind/Execute
|
||
Time 1.5533s ( 643.77 inserts/sec) with pure SQL using Execute
|
||
|
||
Now if PHP only had batch/bulk updating like Java or PL/SQL...
|
||
|
||
Note that the order of parameters differs from OCIBindByName,
|
||
because we default the names to :0, :1, :2
|
||
*/
|
||
function Bind(&$stmt,&$var,$size=4000,$type=false,$name=false)
|
||
{
|
||
if (!is_array($stmt)) return false;
|
||
|
||
if (($type == OCI_B_CURSOR) && sizeof($stmt) >= 5) {
|
||
return OCIBindByName($stmt[1],":".$name,$stmt[4],$size,$type);
|
||
}
|
||
|
||
if ($name == false) {
|
||
if ($type !== false) $rez = OCIBindByName($stmt[1],":".$name,$var,$size,$type);
|
||
else $rez = OCIBindByName($stmt[1],":".$stmt[2],$var,$size); // +1 byte for null terminator
|
||
$stmt[2] += 1;
|
||
} else {
|
||
if ($type !== false) $rez = OCIBindByName($stmt[1],":".$name,$var,$size,$type);
|
||
else $rez = OCIBindByName($stmt[1],":".$name,$var,$size); // +1 byte for null terminator
|
||
}
|
||
|
||
return $rez;
|
||
}
|
||
|
||
function Param($name)
|
||
{
|
||
return ':'.$name;
|
||
}
|
||
|
||
/*
|
||
Usage:
|
||
$stmt = $db->Prepare('select * from table where id =:myid and group=:group');
|
||
$db->Parameter($stmt,$id,'myid');
|
||
$db->Parameter($stmt,$group,'group');
|
||
$db->Execute($stmt);
|
||
|
||
@param $stmt Statement returned by Prepare() or PrepareSP().
|
||
@param $var PHP variable to bind to
|
||
@param $name Name of stored procedure variable name to bind to.
|
||
@param [$isOutput] Indicates direction of parameter 0/false=IN 1=OUT 2= IN/OUT. This is ignored in oci8.
|
||
@param [$maxLen] Holds an maximum length of the variable.
|
||
@param [$type] The data type of $var. Legal values depend on driver.
|
||
|
||
See OCIBindByName documentation at php.net.
|
||
*/
|
||
function Parameter(&$stmt,&$var,$name,$isOutput=false,$maxLen=4000,$type=false)
|
||
{
|
||
if ($this->debug) {
|
||
$prefix = ($isOutput) ? 'Out' : 'In';
|
||
$ztype = (empty($type)) ? 'false' : $type;
|
||
ADOConnection::outp( "{$prefix}Parameter(\$stmt, \$php_var='$var', \$name='$name', \$maxLen=$maxLen, \$type=$ztype);");
|
||
}
|
||
return $this->Bind($stmt,$var,$maxLen,$type,$name);
|
||
}
|
||
|
||
/*
|
||
returns query ID if successful, otherwise false
|
||
this version supports:
|
||
|
||
1. $db->execute('select * from table');
|
||
|
||
2. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)');
|
||
$db->execute($prepared_statement, array(1,2,3));
|
||
|
||
3. $db->execute('insert into table (a,b,c) values (:a,:b,:c)',array('a'=>1,'b'=>2,'c'=>3));
|
||
|
||
4. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)');
|
||
$db->$bind($stmt,1); $db->bind($stmt,2); $db->bind($stmt,3);
|
||
$db->execute($stmt);
|
||
*/
|
||
function _query($sql,$inputarr)
|
||
{
|
||
|
||
if (is_array($sql)) { // is prepared sql
|
||
$stmt = $sql[1];
|
||
|
||
// we try to bind to permanent array, so that OCIBindByName is persistent
|
||
// and carried out once only - note that max array element size is 4000 chars
|
||
if (is_array($inputarr)) {
|
||
$bindpos = $sql[3];
|
||
if (isset($this->_bind[$bindpos])) {
|
||
// all tied up already
|
||
$bindarr = &$this->_bind[$bindpos];
|
||
} else {
|
||
// one statement to bind them all
|
||
$bindarr = array();
|
||
foreach($inputarr as $k => $v) {
|
||
$bindarr[$k] = $v;
|
||
OCIBindByName($stmt,":$k",$bindarr[$k],4000);
|
||
}
|
||
$this->_bind[$bindpos] = &$bindarr;
|
||
}
|
||
}
|
||
} else {
|
||
$stmt=OCIParse($this->_connectionID,$sql);
|
||
}
|
||
|
||
$this->_stmt = $stmt;
|
||
if (!$stmt) return false;
|
||
|
||
if (defined('ADODB_PREFETCH_ROWS')) @OCISetPrefetch($stmt,ADODB_PREFETCH_ROWS);
|
||
|
||
if (is_array($inputarr)) {
|
||
foreach($inputarr as $k => $v) {
|
||
if (is_array($v)) {
|
||
if (sizeof($v) == 2) // suggested by g.giunta@libero.
|
||
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1]);
|
||
else
|
||
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]);
|
||
|
||
if ($this->debug==99) echo "name=:$k",' var='.$inputarr[$k][0],' len='.$v[1],' type='.$v[2],'<br>';
|
||
} else {
|
||
$len = -1;
|
||
if ($v === ' ') $len = 1;
|
||
if (isset($bindarr)) { // is prepared sql, so no need to ocibindbyname again
|
||
$bindarr[$k] = $v;
|
||
} else { // dynamic sql, so rebind every time
|
||
OCIBindByName($stmt,":$k",$inputarr[$k],$len);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
$this->_errorMsg = false;
|
||
$this->_errorCode = false;
|
||
if (OCIExecute($stmt,$this->_commit)) {
|
||
|
||
switch (@OCIStatementType($stmt)) {
|
||
case "SELECT":
|
||
return $stmt;
|
||
|
||
case "BEGIN":
|
||
if (is_array($sql) && !empty($sql[4])) {
|
||
$cursor = $sql[4];
|
||
if (is_resource($cursor)) {
|
||
$ok = OCIExecute($cursor);
|
||
return $cursor;
|
||
}
|
||
return $stmt;
|
||
} else {
|
||
if (is_resource($stmt)) {
|
||
OCIFreeStatement($stmt);
|
||
return true;
|
||
}
|
||
return $stmt;
|
||
}
|
||
break;
|
||
default :
|
||
// ociclose -- no because it could be used in a LOB?
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// returns true or false
|
||
function _close()
|
||
{
|
||
if (!$this->autoCommit) OCIRollback($this->_connectionID);
|
||
OCILogoff($this->_connectionID);
|
||
$this->_stmt = false;
|
||
$this->_connectionID = false;
|
||
}
|
||
|
||
function MetaPrimaryKeys($table, $owner=false,$internalKey=false)
|
||
{
|
||
if ($internalKey) return array('ROWID');
|
||
|
||
// tested with oracle 8.1.7
|
||
$table = strtoupper($table);
|
||
if ($owner) {
|
||
$owner_clause = "AND ((a.OWNER = b.OWNER) AND (a.OWNER = UPPER('$owner')))";
|
||
$ptab = 'ALL_';
|
||
} else {
|
||
$owner_clause = '';
|
||
$ptab = 'USER_';
|
||
}
|
||
$sql = "
|
||
SELECT /*+ RULE */ distinct b.column_name
|
||
FROM {$ptab}CONSTRAINTS a
|
||
, {$ptab}CONS_COLUMNS b
|
||
WHERE ( UPPER(b.table_name) = ('$table'))
|
||
AND (UPPER(a.table_name) = ('$table') and a.constraint_type = 'P')
|
||
$owner_clause
|
||
AND (a.constraint_name = b.constraint_name)";
|
||
|
||
$rs = $this->Execute($sql);
|
||
if ($rs && !$rs->EOF) {
|
||
$arr =& $rs->GetArray();
|
||
$a = array();
|
||
foreach($arr as $v) {
|
||
$a[] = reset($v);
|
||
}
|
||
return $a;
|
||
}
|
||
else return false;
|
||
}
|
||
|
||
// http://gis.mit.edu/classes/11.521/sqlnotes/referential_integrity.html
|
||
function MetaForeignKeys($table, $owner=false)
|
||
{
|
||
global $ADODB_FETCH_MODE;
|
||
|
||
$save = $ADODB_FETCH_MODE;
|
||
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
|
||
$table = $this->qstr(strtoupper($table));
|
||
if (!$owner) {
|
||
$owner = $this->user;
|
||
$tabp = 'user_';
|
||
} else
|
||
$tabp = 'all_';
|
||
|
||
$owner = ' and owner='.$this->qstr(strtoupper($owner));
|
||
|
||
$sql =
|
||
"select constraint_name,r_owner,r_constraint_name
|
||
from {$tabp}constraints
|
||
where constraint_type = 'R' and table_name = $table $owner";
|
||
|
||
$constraints =& $this->GetArray($sql);
|
||
$arr = false;
|
||
foreach($constraints as $constr) {
|
||
$cons = $this->qstr($constr[0]);
|
||
$rowner = $this->qstr($constr[1]);
|
||
$rcons = $this->qstr($constr[2]);
|
||
$cols = $this->GetArray("select column_name from {$tabp}cons_columns where constraint_name=$cons $owner order by position");
|
||
$tabcol = $this->GetArray("select table_name,column_name from {$tabp}cons_columns where owner=$rowner and constraint_name=$rcons order by position");
|
||
|
||
if ($cols && $tabcol)
|
||
for ($i=0, $max=sizeof($cols); $i < $max; $i++) {
|
||
$arr[$tabcol[$i][0]] = $cols[$i][0].'='.$tabcol[$i][1];
|
||
}
|
||
}
|
||
$ADODB_FETCH_MODE = $save;
|
||
|
||
return $arr;
|
||
}
|
||
|
||
|
||
function CharMax()
|
||
{
|
||
return 4000;
|
||
}
|
||
|
||
function TextMax()
|
||
{
|
||
return 4000;
|
||
}
|
||
|
||
/**
|
||
* Quotes a string.
|
||
* An example is $db->qstr("Don't bother",magic_quotes_runtime());
|
||
*
|
||
* @param s the string to quote
|
||
* @param [magic_quotes] if $s is GET/POST var, set to get_magic_quotes_gpc().
|
||
* This undoes the stupidity of magic quotes for GPC.
|
||
*
|
||
* @return quoted string to be sent back to database
|
||
*/
|
||
function qstr($s,$magic_quotes=false)
|
||
{
|
||
$nofixquotes=false;
|
||
|
||
if (is_array($s)) adodb_backtrace();
|
||
if ($this->noNullStrings && strlen($s)==0)$s = ' ';
|
||
if (!$magic_quotes) {
|
||
if ($this->replaceQuote[0] == '\\'){
|
||
$s = str_replace('\\','\\\\',$s);
|
||
}
|
||
return "'".str_replace("'",$this->replaceQuote,$s)."'";
|
||
}
|
||
|
||
// undo magic quotes for "
|
||
$s = str_replace('\\"','"',$s);
|
||
|
||
if ($this->replaceQuote == "\\'") // ' already quoted, no need to change anything
|
||
return "'$s'";
|
||
else {// change \' to '' for sybase/mssql
|
||
$s = str_replace('\\\\','\\',$s);
|
||
return "'".str_replace("\\'",$this->replaceQuote,$s)."'";
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
/*--------------------------------------------------------------------------------------
|
||
Class Name: Recordset
|
||
--------------------------------------------------------------------------------------*/
|
||
|
||
class ADORecordset_oci8 extends ADORecordSet {
|
||
|
||
var $databaseType = 'oci8';
|
||
var $bind=false;
|
||
var $_fieldobjs;
|
||
//var $_arr = false;
|
||
|
||
function ADORecordset_oci8($queryID,$mode=false)
|
||
{
|
||
if ($mode === false) {
|
||
global $ADODB_FETCH_MODE;
|
||
$mode = $ADODB_FETCH_MODE;
|
||
}
|
||
switch ($mode)
|
||
{
|
||
default:
|
||
case ADODB_FETCH_NUM: $this->fetchMode = OCI_NUM+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
|
||
case ADODB_FETCH_ASSOC:$this->fetchMode = OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
|
||
case ADODB_FETCH_DEFAULT:
|
||
case ADODB_FETCH_BOTH:$this->fetchMode = OCI_NUM+OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
|
||
}
|
||
|
||
$this->_queryID = $queryID;
|
||
}
|
||
|
||
|
||
function Init()
|
||
{
|
||
if ($this->_inited) return;
|
||
|
||
$this->_inited = true;
|
||
if ($this->_queryID) {
|
||
|
||
$this->_currentRow = 0;
|
||
@$this->_initrs();
|
||
$this->EOF = !$this->_fetch();
|
||
|
||
/*
|
||
// based on idea by Gaetano Giunta to detect unusual oracle errors
|
||
// see http://phplens.com/lens/lensforum/msgs.php?id=6771
|
||
$err = OCIError($this->_queryID);
|
||
if ($err && $this->connection->debug) ADOConnection::outp($err);
|
||
*/
|
||
|
||
if (!is_array($this->fields)) {
|
||
$this->_numOfRows = 0;
|
||
$this->fields = array();
|
||
}
|
||
} else {
|
||
$this->fields = array();
|
||
$this->_numOfRows = 0;
|
||
$this->_numOfFields = 0;
|
||
$this->EOF = true;
|
||
}
|
||
}
|
||
|
||
function _initrs()
|
||
{
|
||
$this->_numOfRows = -1;
|
||
$this->_numOfFields = OCInumcols($this->_queryID);
|
||
if ($this->_numOfFields>0) {
|
||
$this->_fieldobjs = array();
|
||
$max = $this->_numOfFields;
|
||
for ($i=0;$i<$max; $i++) $this->_fieldobjs[] = $this->_FetchField($i);
|
||
}
|
||
}
|
||
|
||
/* Returns: an object containing field information.
|
||
Get column information in the Recordset object. fetchField() can be used in order to obtain information about
|
||
fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by
|
||
fetchField() is retrieved. */
|
||
|
||
function &_FetchField($fieldOffset = -1)
|
||
{
|
||
$fld = new ADOFieldObject;
|
||
$fieldOffset += 1;
|
||
$fld->name =OCIcolumnname($this->_queryID, $fieldOffset);
|
||
$fld->type = OCIcolumntype($this->_queryID, $fieldOffset);
|
||
$fld->max_length = OCIcolumnsize($this->_queryID, $fieldOffset);
|
||
if ($fld->type == 'NUMBER') {
|
||
$p = OCIColumnPrecision($this->_queryID, $fieldOffset);
|
||
$sc = OCIColumnScale($this->_queryID, $fieldOffset);
|
||
if ($p != 0 && $sc == 0) $fld->type = 'INT';
|
||
//echo " $this->name ($p.$sc) ";
|
||
}
|
||
return $fld;
|
||
}
|
||
|
||
/* For some reason, OCIcolumnname fails when called after _initrs() so we cache it */
|
||
function &FetchField($fieldOffset = -1)
|
||
{
|
||
return $this->_fieldobjs[$fieldOffset];
|
||
}
|
||
|
||
|
||
// 10% speedup to move MoveNext to child class
|
||
function MoveNext()
|
||
{
|
||
//global $ADODB_EXTENSION;if ($ADODB_EXTENSION) return @adodb_movenext($this);
|
||
|
||
if ($this->EOF) return false;
|
||
|
||
$this->_currentRow++;
|
||
if(@OCIfetchinto($this->_queryID,$this->fields,$this->fetchMode))
|
||
return true;
|
||
$this->EOF = true;
|
||
|
||
return false;
|
||
}
|
||
|
||
/* Optimize SelectLimit() by using OCIFetch() instead of OCIFetchInto() */
|
||
function &GetArrayLimit($nrows,$offset=-1)
|
||
{
|
||
if ($offset <= 0) {
|
||
$arr =& $this->GetArray($nrows);
|
||
return $arr;
|
||
}
|
||
for ($i=1; $i < $offset; $i++)
|
||
if (!@OCIFetch($this->_queryID)) return array();
|
||
|
||
if (!@OCIfetchinto($this->_queryID,$this->fields,$this->fetchMode)) return array();
|
||
$results = array();
|
||
$cnt = 0;
|
||
while (!$this->EOF && $nrows != $cnt) {
|
||
$results[$cnt++] = $this->fields;
|
||
$this->MoveNext();
|
||
}
|
||
|
||
return $results;
|
||
}
|
||
|
||
|
||
/* Use associative array to get fields array */
|
||
function Fields($colname)
|
||
{
|
||
if (!$this->bind) {
|
||
$this->bind = array();
|
||
for ($i=0; $i < $this->_numOfFields; $i++) {
|
||
$o = $this->FetchField($i);
|
||
$this->bind[strtoupper($o->name)] = $i;
|
||
}
|
||
}
|
||
|
||
return $this->fields[$this->bind[strtoupper($colname)]];
|
||
}
|
||
|
||
|
||
|
||
function _seek($row)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
function _fetch()
|
||
{
|
||
return @OCIfetchinto($this->_queryID,$this->fields,$this->fetchMode);
|
||
}
|
||
|
||
/* close() only needs to be called if you are worried about using too much memory while your script
|
||
is running. All associated result memory for the specified result identifier will automatically be freed. */
|
||
|
||
function _close()
|
||
{
|
||
if ($this->connection->_stmt === $this->_queryID) $this->connection->_stmt = false;
|
||
OCIFreeStatement($this->_queryID);
|
||
$this->_queryID = false;
|
||
|
||
}
|
||
|
||
function MetaType($t,$len=-1)
|
||
{
|
||
if (is_object($t)) {
|
||
$fieldobj = $t;
|
||
$t = $fieldobj->type;
|
||
$len = $fieldobj->max_length;
|
||
}
|
||
switch (strtoupper($t)) {
|
||
case 'VARCHAR':
|
||
case 'VARCHAR2':
|
||
case 'CHAR':
|
||
case 'VARBINARY':
|
||
case 'BINARY':
|
||
case 'NCHAR':
|
||
case 'NVARCHAR':
|
||
case 'NVARCHAR2':
|
||
if (isset($this) && $len <= $this->blobSize) return 'C';
|
||
|
||
case 'NCLOB':
|
||
case 'LONG':
|
||
case 'LONG VARCHAR':
|
||
case 'CLOB':
|
||
return 'X';
|
||
|
||
case 'LONG RAW':
|
||
case 'LONG VARBINARY':
|
||
case 'BLOB':
|
||
return 'B';
|
||
|
||
case 'DATE':
|
||
return ($this->connection->datetime) ? 'T' : 'D';
|
||
|
||
|
||
case 'TIMESTAMP': return 'T';
|
||
|
||
case 'INT':
|
||
case 'SMALLINT':
|
||
case 'INTEGER':
|
||
return 'I';
|
||
|
||
default: return 'N';
|
||
}
|
||
}
|
||
}
|
||
?>
|