mirror of
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299 lines
7.7 KiB
PHP
299 lines
7.7 KiB
PHP
<?php
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/*
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V4.20 22 Feb 2004 (c) 2000-2004 John Lim (jlim@natsoft.com.my). 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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Oracle data driver. Requires Oracle client. Works on Windows and Unix and Oracle 7 and 8.
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If you are using Oracle 8, use the oci8 driver which is much better and more reliable.
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*/
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class ADODB_oracle extends ADOConnection {
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var $databaseType = "oracle";
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var $replaceQuote = "''"; // string to use to replace quotes
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var $concat_operator='||';
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var $_curs;
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var $_initdate = true; // init date to YYYY-MM-DD
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var $metaTablesSQL = 'select table_name from cat';
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var $metaColumnsSQL = "select cname,coltype,width from col where tname='%s' order by colno";
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var $sysDate = "TO_DATE(TO_CHAR(SYSDATE,'YYYY-MM-DD'),'YYYY-MM-DD')";
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var $sysTimeStamp = 'SYSDATE';
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var $connectSID = true;
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function ADODB_oracle()
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{
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}
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// format and return date string in database date format
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function DBDate($d)
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{
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if (is_string($d)) $d = ADORecordSet::UnixDate($d);
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return 'TO_DATE('.adodb_date($this->fmtDate,$d).",'YYYY-MM-DD')";
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}
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// format and return date string in database timestamp format
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function DBTimeStamp($ts)
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{
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if (is_string($ts)) $d = ADORecordSet::UnixTimeStamp($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 BeginTrans()
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{
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$this->autoCommit = false;
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ora_commitoff($this->_connectionID);
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return true;
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}
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function CommitTrans($ok=true)
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{
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if (!$ok) return $this->RollbackTrans();
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$ret = ora_commit($this->_connectionID);
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ora_commiton($this->_connectionID);
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return $ret;
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}
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function RollbackTrans()
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{
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$ret = ora_rollback($this->_connectionID);
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ora_commiton($this->_connectionID);
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return $ret;
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}
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/* there seems to be a bug in the oracle extension -- always returns ORA-00000 - no error */
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function ErrorMsg()
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{
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$this->_errorMsg = @ora_error($this->_curs);
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if (!$this->_errorMsg) $this->_errorMsg = @ora_error($this->_connectionID);
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return $this->_errorMsg;
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}
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function ErrorNo()
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{
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$err = @ora_errorcode($this->_curs);
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if (!$err) return @ora_errorcode($this->_connectionID);
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}
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// returns true or false
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function _connect($argHostname, $argUsername, $argPassword, $argDatabasename, $mode=0)
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{
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// G. Giunta 2003/08/13 - This looks danegrously suspicious: why should we want to set
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// the oracle home to the host name of remote DB?
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// if ($argHostname) putenv("ORACLE_HOME=$argHostname");
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if($argHostname) { // code copied from version submitted for oci8 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 ($argDatabasename) $argUsername .= "@$argDatabasename";
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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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$this->_connectionID = ora_plogon($argUsername,$argPassword);
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else
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$this->_connectionID = ora_logon($argUsername,$argPassword);
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if ($this->_connectionID === false) return false;
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if ($this->autoCommit) ora_commiton($this->_connectionID);
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if ($this->_initdate) {
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$rs = $this->_query("ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD'");
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if ($rs) ora_close($rs);
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}
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return true;
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}
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// returns true or false
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function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename, 1);
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}
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// returns query ID if successful, otherwise false
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function _query($sql,$inputarr=false)
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{
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$curs = ora_open($this->_connectionID);
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if ($curs === false) return false;
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$this->_curs = $curs;
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if (!ora_parse($curs,$sql)) return false;
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if (ora_exec($curs)) return $curs;
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@ora_close($curs);
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return false;
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}
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// returns true or false
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function _close()
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{
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return @ora_logoff($this->_connectionID);
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}
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}
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/*--------------------------------------------------------------------------------------
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Class Name: Recordset
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--------------------------------------------------------------------------------------*/
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class ADORecordset_oracle extends ADORecordSet {
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var $databaseType = "oracle";
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var $bind = false;
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function ADORecordset_oracle($queryID,$mode=false)
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{
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if ($mode === false) {
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global $ADODB_FETCH_MODE;
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$mode = $ADODB_FETCH_MODE;
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}
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$this->fetchMode = $mode;
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$this->_queryID = $queryID;
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$this->_inited = true;
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$this->fields = array();
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if ($queryID) {
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$this->_currentRow = 0;
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$this->EOF = !$this->_fetch();
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@$this->_initrs();
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} else {
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$this->_numOfRows = 0;
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$this->_numOfFields = 0;
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$this->EOF = true;
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}
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return $this->_queryID;
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}
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/* Returns: an object containing field information.
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Get column information in the Recordset object. fetchField() can be used in order to obtain information about
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fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by
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fetchField() is retrieved. */
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function FetchField($fieldOffset = -1)
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{
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$fld = new ADOFieldObject;
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$fld->name = ora_columnname($this->_queryID, $fieldOffset);
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$fld->type = ora_columntype($this->_queryID, $fieldOffset);
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$fld->max_length = ora_columnsize($this->_queryID, $fieldOffset);
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return $fld;
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}
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/* Use associative array to get fields array */
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function Fields($colname)
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{
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if (!$this->bind) {
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$this->bind = array();
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for ($i=0; $i < $this->_numOfFields; $i++) {
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$o = $this->FetchField($i);
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$this->bind[strtoupper($o->name)] = $i;
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}
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}
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return $this->fields[$this->bind[strtoupper($colname)]];
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}
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function _initrs()
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{
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$this->_numOfRows = -1;
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$this->_numOfFields = @ora_numcols($this->_queryID);
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}
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function _seek($row)
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{
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return false;
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}
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function _fetch($ignore_fields=false) {
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// should remove call by reference, but ora_fetch_into requires it in 4.0.3pl1
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if ($this->fetchMode & ADODB_FETCH_ASSOC)
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return @ora_fetch_into($this->_queryID,&$this->fields,ORA_FETCHINTO_NULLS|ORA_FETCHINTO_ASSOC);
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else
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return @ora_fetch_into($this->_queryID,&$this->fields,ORA_FETCHINTO_NULLS);
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}
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/* close() only needs to be called if you are worried about using too much memory while your script
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is running. All associated result memory for the specified result identifier will automatically be freed. */
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function _close()
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{
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return @ora_close($this->_queryID);
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}
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function MetaType($t,$len=-1)
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{
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if (is_object($t)) {
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$fieldobj = $t;
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$t = $fieldobj->type;
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$len = $fieldobj->max_length;
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}
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switch (strtoupper($t)) {
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case 'VARCHAR':
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case 'VARCHAR2':
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case 'CHAR':
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case 'VARBINARY':
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case 'BINARY':
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if ($len <= $this->blobSize) return 'C';
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case 'LONG':
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case 'LONG VARCHAR':
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case 'CLOB':
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return 'X';
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case 'LONG RAW':
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case 'LONG VARBINARY':
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case 'BLOB':
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return 'B';
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case 'DATE': return 'D';
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//case 'T': return 'T';
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case 'BIT': return 'L';
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case 'INT':
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case 'SMALLINT':
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case 'INTEGER': return 'I';
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default: return 'N';
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}
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}
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}
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?>
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