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409 lines
12 KiB
PHP
409 lines
12 KiB
PHP
<?php
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/*
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V4.51 29 July 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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Set tabs to 4 for best viewing.
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Latest version is available at http://adodb.sourceforge.net
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Sybase driver contributed by Toni (toni.tunkkari@finebyte.com)
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- MSSQL date patch applied.
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Date patch by Toni 15 Feb 2002
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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class ADODB_sybase extends ADOConnection {
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var $databaseType = "sybase";
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//var $dataProvider = 'sybase';
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var $replaceQuote = "''"; // string to use to replace quotes
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var $fmtDate = "'Y-m-d'";
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var $fmtTimeStamp = "'Y-m-d H:i:s'";
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var $hasInsertID = true;
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var $hasAffectedRows = true;
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var $metaTablesSQL="select name from sysobjects where type='U' or type='V'";
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// see http://sybooks.sybase.com/onlinebooks/group-aw/awg0800e/dbrfen8/@ebt-link;pt=5981;uf=0?target=0;window=new;showtoc=true;book=dbrfen8
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var $metaColumnsSQL = "SELECT c.column_name, c.column_type, c.width FROM syscolumn c, systable t WHERE t.table_name='%s' AND c.table_id=t.table_id AND t.table_type='BASE'";
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/*
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"select c.name,t.name,c.length from
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syscolumns c join systypes t on t.xusertype=c.xusertype join sysobjects o on o.id=c.id
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where o.name='%s'";
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*/
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var $concat_operator = '+';
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var $arrayClass = 'ADORecordSet_array_sybase';
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var $sysDate = 'GetDate()';
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var $leftOuter = '*=';
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var $rightOuter = '=*';
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function ADODB_sybase()
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{
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}
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// might require begintrans -- committrans
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function _insertid()
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{
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return $this->GetOne('select @@identity');
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}
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// might require begintrans -- committrans
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function _affectedrows()
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{
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return $this->GetOne('select @@rowcount');
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}
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function BeginTrans()
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{
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if ($this->transOff) return true;
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$this->transCnt += 1;
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$this->Execute('BEGIN TRAN');
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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 $this->RollbackTrans();
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$this->transCnt -= 1;
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$this->Execute('COMMIT TRAN');
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return true;
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}
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function RollbackTrans()
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{
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if ($this->transOff) return true;
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$this->transCnt -= 1;
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$this->Execute('ROLLBACK TRAN');
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return true;
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}
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// http://www.isug.com/Sybase_FAQ/ASE/section6.1.html#6.1.4
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function RowLock($tables,$where)
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{
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if (!$this->_hastrans) $this->BeginTrans();
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$tables = str_replace(',',' HOLDLOCK,',$tables);
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return $this->GetOne("select top 1 null as ignore from $tables HOLDLOCK where $where");
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}
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function SelectDB($dbName) {
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$this->databaseName = $dbName;
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if ($this->_connectionID) {
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return @sybase_select_db($dbName);
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}
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else return false;
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}
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/* Returns: the last error message from previous database operation
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Note: This function is NOT available for Microsoft SQL Server. */
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function ErrorMsg()
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{
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if ($this->_logsql) return $this->_errorMsg;
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$this->_errorMsg = sybase_get_last_message();
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return $this->_errorMsg;
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}
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// returns true or false
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function _connect($argHostname, $argUsername, $argPassword, $argDatabasename)
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{
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if (!function_exists('sybase_connect')) return null;
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$this->_connectionID = sybase_connect($argHostname,$argUsername,$argPassword);
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if ($this->_connectionID === false) return false;
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if ($argDatabasename) return $this->SelectDB($argDatabasename);
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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, $argDatabasename)
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{
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if (!function_exists('sybase_connect')) return null;
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$this->_connectionID = sybase_pconnect($argHostname,$argUsername,$argPassword);
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if ($this->_connectionID === false) return false;
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if ($argDatabasename) return $this->SelectDB($argDatabasename);
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return true;
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}
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// returns query ID if successful, otherwise false
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function _query($sql,$inputarr)
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{
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global $ADODB_COUNTRECS;
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if ($ADODB_COUNTRECS == false && ADODB_PHPVER >= 0x4300)
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return sybase_unbuffered_query($sql,$this->_connectionID);
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else
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return sybase_query($sql,$this->_connectionID);
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}
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// See http://www.isug.com/Sybase_FAQ/ASE/section6.2.html#6.2.12
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function &SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
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{
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if ($secs2cache > 0) {// we do not cache rowcount, so we have to load entire recordset
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$rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
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return $rs;
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}
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$cnt = ($nrows > 0) ? $nrows : 0;
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if ($offset > 0 && $cnt) $cnt += $offset;
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$this->Execute("set rowcount $cnt");
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$rs =& ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,0);
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$this->Execute("set rowcount 0");
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return $rs;
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}
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// returns true or false
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function _close()
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{
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return @sybase_close($this->_connectionID);
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}
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function UnixDate($v)
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{
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return ADORecordSet_array_sybase::UnixDate($v);
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}
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function UnixTimeStamp($v)
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{
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return ADORecordSet_array_sybase::UnixTimeStamp($v);
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}
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# Added 2003-10-05 by Chris Phillipson
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# Used ASA SQL Reference Manual -- http://sybooks.sybase.com/onlinebooks/group-aw/awg0800e/dbrfen8/@ebt-link;pt=16756?target=%25N%15_12018_START_RESTART_N%25
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# to convert similar Microsoft SQL*Server (mssql) API into Sybase compatible version
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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 = $this->sysTimeStamp;
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$s = '';
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$len = strlen($fmt);
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for ($i=0; $i < $len; $i++) {
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if ($s) $s .= '+';
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$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 .= "datename(yy,$col)";
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break;
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case 'M':
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$s .= "convert(char(3),$col,0)";
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break;
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case 'm':
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$s .= "replace(str(month($col),2),' ','0')";
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break;
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case 'Q':
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case 'q':
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$s .= "datename(qq,$col)";
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break;
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case 'D':
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case 'd':
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$s .= "replace(str(datepart(dd,$col),2),' ','0')";
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break;
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case 'h':
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$s .= "substring(convert(char(14),$col,0),13,2)";
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break;
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case 'H':
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$s .= "replace(str(datepart(hh,$col),2),' ','0')";
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break;
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case 'i':
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$s .= "replace(str(datepart(mi,$col),2),' ','0')";
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break;
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case 's':
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$s .= "replace(str(datepart(ss,$col),2),' ','0')";
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break;
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case 'a':
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case 'A':
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$s .= "substring(convert(char(19),$col,0),18,2)";
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break;
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default:
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if ($ch == '\\') {
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$i++;
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$ch = substr($fmt,$i,1);
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}
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$s .= $this->qstr($ch);
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break;
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}
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}
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return $s;
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}
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# Added 2003-10-07 by Chris Phillipson
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# Used ASA SQL Reference Manual -- http://sybooks.sybase.com/onlinebooks/group-aw/awg0800e/dbrfen8/@ebt-link;pt=5981;uf=0?target=0;window=new;showtoc=true;book=dbrfen8
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# to convert similar Microsoft SQL*Server (mssql) API into Sybase compatible version
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function MetaPrimaryKeys($table)
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{
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$sql = "SELECT c.column_name " .
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"FROM syscolumn c, systable t " .
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"WHERE t.table_name='$table' AND c.table_id=t.table_id " .
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"AND t.table_type='BASE' " .
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"AND c.pkey = 'Y' " .
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"ORDER BY c.column_id";
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$a = $this->GetCol($sql);
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if ($a && sizeof($a)>0) return $a;
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return false;
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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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global $ADODB_sybase_mths;
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$ADODB_sybase_mths = array(
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'JAN'=>1,'FEB'=>2,'MAR'=>3,'APR'=>4,'MAY'=>5,'JUN'=>6,
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'JUL'=>7,'AUG'=>8,'SEP'=>9,'OCT'=>10,'NOV'=>11,'DEC'=>12);
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class ADORecordset_sybase extends ADORecordSet {
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var $databaseType = "sybase";
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var $canSeek = true;
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// _mths works only in non-localised system
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var $_mths = array('JAN'=>1,'FEB'=>2,'MAR'=>3,'APR'=>4,'MAY'=>5,'JUN'=>6,'JUL'=>7,'AUG'=>8,'SEP'=>9,'OCT'=>10,'NOV'=>11,'DEC'=>12);
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function ADORecordset_sybase($id,$mode=false)
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{
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if ($mode === false) {
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global $ADODB_FETCH_MODE;
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$mode = $ADODB_FETCH_MODE;
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}
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if (!$mode) $this->fetchMode = ADODB_FETCH_ASSOC;
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else $this->fetchMode = $mode;
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return $this->ADORecordSet($id,$mode);
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}
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/* Returns: an object containing field information.
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Get column information in the Recordset object. fetchField() can be used in order to obtain information about
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fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by
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fetchField() is retrieved. */
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function &FetchField($fieldOffset = -1)
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{
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if ($fieldOffset != -1) {
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$o = @sybase_fetch_field($this->_queryID, $fieldOffset);
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}
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else if ($fieldOffset == -1) { /* The $fieldOffset argument is not provided thus its -1 */
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$o = @sybase_fetch_field($this->_queryID);
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}
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// older versions of PHP did not support type, only numeric
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if ($o && !isset($o->type)) $o->type = ($o->numeric) ? 'float' : 'varchar';
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return $o;
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}
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function _initrs()
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{
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global $ADODB_COUNTRECS;
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$this->_numOfRows = ($ADODB_COUNTRECS)? @sybase_num_rows($this->_queryID):-1;
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$this->_numOfFields = @sybase_num_fields($this->_queryID);
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}
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function _seek($row)
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{
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return @sybase_data_seek($this->_queryID, $row);
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}
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function _fetch($ignore_fields=false)
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{
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if ($this->fetchMode == ADODB_FETCH_NUM) {
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$this->fields = @sybase_fetch_row($this->_queryID);
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} else if ($this->fetchMode == ADODB_FETCH_ASSOC) {
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$this->fields = @sybase_fetch_row($this->_queryID);
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if (is_array($this->fields)) {
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$this->fields = $this->GetRowAssoc(ADODB_ASSOC_CASE);
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return true;
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}
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return false;
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} else {
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$this->fields = @sybase_fetch_array($this->_queryID);
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}
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if ( is_array($this->fields)) {
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return true;
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}
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return false;
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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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return @sybase_free_result($this->_queryID);
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}
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// sybase/mssql uses a default date like Dec 30 2000 12:00AM
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function UnixDate($v)
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{
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return ADORecordSet_array_sybase::UnixDate($v);
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}
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function UnixTimeStamp($v)
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{
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return ADORecordSet_array_sybase::UnixTimeStamp($v);
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}
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}
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class ADORecordSet_array_sybase extends ADORecordSet_array {
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function ADORecordSet_array_sybase($id=-1)
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{
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$this->ADORecordSet_array($id);
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}
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// sybase/mssql uses a default date like Dec 30 2000 12:00AM
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function UnixDate($v)
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{
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global $ADODB_sybase_mths;
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//Dec 30 2000 12:00AM
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if (!ereg( "([A-Za-z]{3})[-/\. ]+([0-9]{1,2})[-/\. ]+([0-9]{4})"
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,$v, $rr)) return parent::UnixDate($v);
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if ($rr[3] <= TIMESTAMP_FIRST_YEAR) return 0;
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$themth = substr(strtoupper($rr[1]),0,3);
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$themth = $ADODB_sybase_mths[$themth];
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if ($themth <= 0) return false;
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// h-m-s-MM-DD-YY
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return mktime(0,0,0,$themth,$rr[2],$rr[3]);
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}
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function UnixTimeStamp($v)
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{
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global $ADODB_sybase_mths;
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//11.02.2001 Toni Tunkkari toni.tunkkari@finebyte.com
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//Changed [0-9] to [0-9 ] in day conversion
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if (!ereg( "([A-Za-z]{3})[-/\. ]([0-9 ]{1,2})[-/\. ]([0-9]{4}) +([0-9]{1,2}):([0-9]{1,2}) *([apAP]{0,1})"
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,$v, $rr)) return parent::UnixTimeStamp($v);
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if ($rr[3] <= TIMESTAMP_FIRST_YEAR) return 0;
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$themth = substr(strtoupper($rr[1]),0,3);
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$themth = $ADODB_sybase_mths[$themth];
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if ($themth <= 0) return false;
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switch (strtoupper($rr[6])) {
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case 'P':
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if ($rr[4]<12) $rr[4] += 12;
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break;
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case 'A':
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if ($rr[4]==12) $rr[4] = 0;
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break;
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default:
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break;
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}
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// h-m-s-MM-DD-YY
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return mktime($rr[4],$rr[5],0,$themth,$rr[2],$rr[3]);
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}
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}
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?>
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