initial checkin

1 files changed, 843 insertions, 0 deletions

diff --git a/vendor/adodb/adodb-php/drivers/adodb-db2.inc.php b/vendor/adodb/adodb-php/drivers/adodb-db2.inc.php
new file mode 100644
index 0000000..bfe99cd
--- /dev/null
+++ b/vendor/adodb/adodb-php/drivers/adodb-db2.inc.php
@@ -0,0 +1,843 @@
+<?php
+/**
+  @version   v5.20.14  06-Jan-2019
+  @copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
+  @copyright (c) 2014      Damien Regad, Mark Newnham and the ADOdb community
+
+  This is a version of the ADODB driver for DB2.  It uses the 'ibm_db2' PECL extension
+  for PHP (http://pecl.php.net/package/ibm_db2), which in turn requires DB2 V8.2.2 or
+  higher.
+
+  Originally tested with PHP 5.1.1 and Apache 2.0.55 on Windows XP SP2.
+  More recently tested with PHP 5.1.2 and Apache 2.0.55 on Windows XP SP2.
+
+  This file was ported from "adodb-odbc.inc.php" by Larry Menard, "larry.menard#rogers.com".
+  I ripped out what I believed to be a lot of redundant or obsolete code, but there are
+  probably still some remnants of the ODBC support in this file; I'm relying on reviewers
+  of this code to point out any other things that can be removed.
+*/
+
+// security - hide paths
+if (!defined('ADODB_DIR')) die();
+
+  define("_ADODB_DB2_LAYER", 2 );
+
+/*--------------------------------------------------------------------------------------
+--------------------------------------------------------------------------------------*/
+
+
+
+
+
+class ADODB_db2 extends ADOConnection {
+	var $databaseType = "db2";
+	var $fmtDate = "'Y-m-d'";
+	var $concat_operator = '||';
+
+	var $sysTime = 'CURRENT TIME';
+	var $sysDate = 'CURRENT DATE';
+	var $sysTimeStamp = 'CURRENT TIMESTAMP';
+
+	var $fmtTimeStamp = "'Y-m-d H:i:s'";
+	var $replaceQuote = "''"; // string to use to replace quotes
+	var $dataProvider = "db2";
+	var $hasAffectedRows = true;
+
+	var $binmode = DB2_BINARY;
+
+	var $useFetchArray = false; // setting this to true will make array elements in FETCH_ASSOC mode case-sensitive
+								// breaking backward-compat
+	var $_bindInputArray = false;
+	var $_genIDSQL = "VALUES NEXTVAL FOR %s";
+	var $_genSeqSQL = "CREATE SEQUENCE %s START WITH %s NO MAXVALUE NO CYCLE";
+	var $_dropSeqSQL = "DROP SEQUENCE %s";
+	var $_autocommit = true;
+	var $_haserrorfunctions = true;
+	var $_lastAffectedRows = 0;
+	var $uCaseTables = true; // for meta* functions, uppercase table names
+	var $hasInsertID = true;
+
+
+    function _insertid()
+    {
+        return ADOConnection::GetOne('VALUES IDENTITY_VAL_LOCAL()');
+    }
+
+	function __construct()
+	{
+		$this->_haserrorfunctions = ADODB_PHPVER >= 0x4050;
+	}
+
+		// returns true or false
+	function _connect($argDSN, $argUsername, $argPassword, $argDatabasename)
+	{
+		if (!function_exists('db2_connect')) {
+			ADOConnection::outp("Warning: The old ODBC based DB2 driver has been renamed 'odbc_db2'. This ADOdb driver calls PHP's native db2 extension which is not installed.");
+			return null;
+		}
+		// This needs to be set before the connect().
+		// Replaces the odbc_binmode() call that was in Execute()
+		ini_set('ibm_db2.binmode', $this->binmode);
+
+		if ($argDatabasename && empty($argDSN)) {
+
+			if (stripos($argDatabasename,'UID=') && stripos($argDatabasename,'PWD=')) $this->_connectionID = db2_connect($argDatabasename,null,null);
+			else $this->_connectionID = db2_connect($argDatabasename,$argUsername,$argPassword);
+		} else {
+			if ($argDatabasename) $schema = $argDatabasename;
+			if (stripos($argDSN,'UID=') && stripos($argDSN,'PWD=')) $this->_connectionID = db2_connect($argDSN,null,null);
+			else $this->_connectionID = db2_connect($argDSN,$argUsername,$argPassword);
+		}
+
+		// For db2_connect(), there is an optional 4th arg.  If present, it must be
+		// an array of valid options.  So far, we don't use them.
+
+		$this->_errorMsg = @db2_conn_errormsg();
+		if (isset($this->connectStmt)) $this->Execute($this->connectStmt);
+
+		if ($this->_connectionID && isset($schema)) $this->Execute("SET SCHEMA=$schema");
+		return $this->_connectionID != false;
+	}
+
+	// returns true or false
+	function _pconnect($argDSN, $argUsername, $argPassword, $argDatabasename)
+	{
+		if (!function_exists('db2_connect')) return null;
+
+		// This needs to be set before the connect().
+		// Replaces the odbc_binmode() call that was in Execute()
+		ini_set('ibm_db2.binmode', $this->binmode);
+
+		$this->_errorMsg = '';
+
+		if ($argDatabasename && empty($argDSN)) {
+
+			if (stripos($argDatabasename,'UID=') && stripos($argDatabasename,'PWD=')) $this->_connectionID = db2_pconnect($argDatabasename,null,null);
+			else $this->_connectionID = db2_pconnect($argDatabasename,$argUsername,$argPassword);
+		} else {
+			if ($argDatabasename) $schema = $argDatabasename;
+			if (stripos($argDSN,'UID=') && stripos($argDSN,'PWD=')) $this->_connectionID = db2_pconnect($argDSN,null,null);
+			else $this->_connectionID = db2_pconnect($argDSN,$argUsername,$argPassword);
+		}
+
+		$this->_errorMsg = @db2_conn_errormsg();
+		if ($this->_connectionID && $this->autoRollback) @db2_rollback($this->_connectionID);
+		if (isset($this->connectStmt)) $this->Execute($this->connectStmt);
+
+		if ($this->_connectionID && isset($schema)) $this->Execute("SET SCHEMA=$schema");
+		return $this->_connectionID != false;
+	}
+
+	// format and return date string in database timestamp format
+	function DBTimeStamp($ts, $isfld = false)
+	{
+		if (empty($ts) && $ts !== 0) return 'null';
+		if (is_string($ts)) $ts = ADORecordSet::UnixTimeStamp($ts);
+		return 'TO_DATE('.adodb_date($this->fmtTimeStamp,$ts).",'YYYY-MM-DD HH24:MI:SS')";
+	}
+
+	// Format date column in sql string given an input format that understands Y M D
+	function SQLDate($fmt, $col=false)
+	{
+	// use right() and replace() ?
+		if (!$col) $col = $this->sysDate;
+
+		/* use TO_CHAR() if $fmt is TO_CHAR() allowed fmt */
+		if ($fmt== 'Y-m-d H:i:s')
+			return 'TO_CHAR('.$col.", 'YYYY-MM-DD HH24:MI:SS')";
+
+		$s = '';
+
+		$len = strlen($fmt);
+		for ($i=0; $i < $len; $i++) {
+			if ($s) $s .= $this->concat_operator;
+			$ch = $fmt[$i];
+			switch($ch) {
+			case 'Y':
+			case 'y':
+				if ($len==1) return "year($col)";
+				$s .= "char(year($col))";
+				break;
+			case 'M':
+				if ($len==1) return "monthname($col)";
+				$s .= "substr(monthname($col),1,3)";
+				break;
+			case 'm':
+				if ($len==1) return "month($col)";
+				$s .= "right(digits(month($col)),2)";
+				break;
+			case 'D':
+			case 'd':
+				if ($len==1) return "day($col)";
+				$s .= "right(digits(day($col)),2)";
+				break;
+			case 'H':
+			case 'h':
+				if ($len==1) return "hour($col)";
+				if ($col != $this->sysDate) $s .= "right(digits(hour($col)),2)";
+				else $s .= "''";
+				break;
+			case 'i':
+			case 'I':
+				if ($len==1) return "minute($col)";
+				if ($col != $this->sysDate)
+					$s .= "right(digits(minute($col)),2)";
+					else $s .= "''";
+				break;
+			case 'S':
+			case 's':
+				if ($len==1) return "second($col)";
+				if ($col != $this->sysDate)
+					$s .= "right(digits(second($col)),2)";
+				else $s .= "''";
+				break;
+			default:
+				if ($ch == '\\') {
+					$i++;
+					$ch = substr($fmt,$i,1);
+				}
+				$s .= $this->qstr($ch);
+			}
+		}
+		return $s;
+	}
+
+
+	function ServerInfo()
+	{
+		$row = $this->GetRow("SELECT service_level, fixpack_num FROM TABLE(sysproc.env_get_inst_info())
+			as INSTANCEINFO");
+
+
+		if ($row) {
+			$info['version'] = $row[0].':'.$row[1];
+			$info['fixpack'] = $row[1];
+			$info['description'] = '';
+		} else {
+			return ADOConnection::ServerInfo();
+		}
+
+		return $info;
+	}
+
+	function CreateSequence($seqname='adodbseq',$start=1)
+	{
+		if (empty($this->_genSeqSQL)) return false;
+		$ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname,$start));
+		if (!$ok) return false;
+		return true;
+	}
+
+	function DropSequence($seqname = 'adodbseq')
+	{
+		if (empty($this->_dropSeqSQL)) return false;
+		return $this->Execute(sprintf($this->_dropSeqSQL,$seqname));
+	}
+
+	function SelectLimit($sql, $nrows = -1, $offset = -1, $inputArr = false, $secs2cache = 0)
+	{
+		$nrows = (int) $nrows;
+		$offset = (int) $offset;
+		if ($offset <= 0) {
+		// could also use " OPTIMIZE FOR $nrows ROWS "
+			if ($nrows >= 0) $sql .=  " FETCH FIRST $nrows ROWS ONLY ";
+			$rs = $this->Execute($sql,$inputArr);
+		} else {
+			if ($offset > 0 && $nrows < 0);
+			else {
+				$nrows += $offset;
+				$sql .=  " FETCH FIRST $nrows ROWS ONLY ";
+			}
+			$rs = ADOConnection::SelectLimit($sql,-1,$offset,$inputArr);
+		}
+
+		return $rs;
+	}
+
+	/*
+		This algorithm is not very efficient, but works even if table locking
+		is not available.
+
+		Will return false if unable to generate an ID after $MAXLOOPS attempts.
+	*/
+	function GenID($seq='adodbseq',$start=1)
+	{
+		// if you have to modify the parameter below, your database is overloaded,
+		// or you need to implement generation of id's yourself!
+				$num = $this->GetOne("VALUES NEXTVAL FOR $seq");
+				return $num;
+	}
+
+
+	function ErrorMsg()
+	{
+		if ($this->_haserrorfunctions) {
+			if ($this->_errorMsg !== false) return $this->_errorMsg;
+			if (empty($this->_connectionID)) return @db2_conn_errormsg();
+			return @db2_conn_errormsg($this->_connectionID);
+		} else return ADOConnection::ErrorMsg();
+	}
+
+	function ErrorNo()
+	{
+
+		if ($this->_haserrorfunctions) {
+			if ($this->_errorCode !== false) {
+				// bug in 4.0.6, error number can be corrupted string (should be 6 digits)
+				return (strlen($this->_errorCode)<=2) ? 0 : $this->_errorCode;
+			}
+
+			if (empty($this->_connectionID)) $e = @db2_conn_error();
+			else $e = @db2_conn_error($this->_connectionID);
+
+			 // bug in 4.0.6, error number can be corrupted string (should be 6 digits)
+			 // so we check and patch
+			if (strlen($e)<=2) return 0;
+			return $e;
+		} else return ADOConnection::ErrorNo();
+	}
+
+
+
+	function BeginTrans()
+	{
+		if (!$this->hasTransactions) return false;
+		if ($this->transOff) return true;
+		$this->transCnt += 1;
+		$this->_autocommit = false;
+		return db2_autocommit($this->_connectionID,false);
+	}
+
+	function CommitTrans($ok=true)
+	{
+		if ($this->transOff) return true;
+		if (!$ok) return $this->RollbackTrans();
+		if ($this->transCnt) $this->transCnt -= 1;
+		$this->_autocommit = true;
+		$ret = db2_commit($this->_connectionID);
+		db2_autocommit($this->_connectionID,true);
+		return $ret;
+	}
+
+	function RollbackTrans()
+	{
+		if ($this->transOff) return true;
+		if ($this->transCnt) $this->transCnt -= 1;
+		$this->_autocommit = true;
+		$ret = db2_rollback($this->_connectionID);
+		db2_autocommit($this->_connectionID,true);
+		return $ret;
+	}
+
+	function MetaPrimaryKeys($table, $owner = false)
+	{
+	global $ADODB_FETCH_MODE;
+
+		if ($this->uCaseTables) $table = strtoupper($table);
+		$schema = '';
+		$this->_findschema($table,$schema);
+
+		$savem = $ADODB_FETCH_MODE;
+		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+		$qid = @db2_primarykeys($this->_connectionID,'',$schema,$table);
+
+		if (!$qid) {
+			$ADODB_FETCH_MODE = $savem;
+			return false;
+		}
+		$rs = new ADORecordSet_db2($qid);
+		$ADODB_FETCH_MODE = $savem;
+
+		if (!$rs) return false;
+
+		$arr = $rs->GetArray();
+		$rs->Close();
+		$arr2 = array();
+		for ($i=0; $i < sizeof($arr); $i++) {
+			if ($arr[$i][3]) $arr2[] = $arr[$i][3];
+		}
+		return $arr2;
+	}
+
+	function MetaForeignKeys($table, $owner = FALSE, $upper = FALSE, $asociative = FALSE )
+	{
+	global $ADODB_FETCH_MODE;
+
+		if ($this->uCaseTables) $table = strtoupper($table);
+		$schema = '';
+		$this->_findschema($table,$schema);
+
+		$savem = $ADODB_FETCH_MODE;
+		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+		$qid = @db2_foreign_keys($this->_connectionID,'',$schema,$table);
+		if (!$qid) {
+			$ADODB_FETCH_MODE = $savem;
+			return false;
+		}
+		$rs = new ADORecordSet_db2($qid);
+
+		$ADODB_FETCH_MODE = $savem;
+		/*
+		$rs->fields indices
+		0 PKTABLE_CAT
+		1 PKTABLE_SCHEM
+		2 PKTABLE_NAME
+		3 PKCOLUMN_NAME
+		4 FKTABLE_CAT
+		5 FKTABLE_SCHEM
+		6 FKTABLE_NAME
+		7 FKCOLUMN_NAME
+		*/
+		if (!$rs) return false;
+
+		$foreign_keys = array();
+		while (!$rs->EOF) {
+			if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) {
+				if (!is_array($foreign_keys[$rs->fields[5].'.'.$rs->fields[6]]))
+					$foreign_keys[$rs->fields[5].'.'.$rs->fields[6]] = array();
+				$foreign_keys[$rs->fields[5].'.'.$rs->fields[6]][$rs->fields[7]] = $rs->fields[3];
+			}
+			$rs->MoveNext();
+		}
+
+		$rs->Close();
+		return $foreign_key;
+	}
+
+
+	function MetaTables($ttype = false, $schema = false, $mask = false)
+	{
+	global $ADODB_FETCH_MODE;
+
+		$savem = $ADODB_FETCH_MODE;
+		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+		$qid = db2_tables($this->_connectionID);
+
+		$rs = new ADORecordSet_db2($qid);
+
+		$ADODB_FETCH_MODE = $savem;
+		if (!$rs) {
+			$false = false;
+			return $false;
+		}
+
+		$arr = $rs->GetArray();
+		$rs->Close();
+		$arr2 = array();
+
+		if ($ttype) {
+			$isview = strncmp($ttype,'V',1) === 0;
+		}
+		for ($i=0; $i < sizeof($arr); $i++) {
+			if (!$arr[$i][2]) continue;
+			$type = $arr[$i][3];
+			$owner = $arr[$i][1];
+			$schemaval = ($schema) ? $arr[$i][1].'.' : '';
+			if ($ttype) {
+				if ($isview) {
+					if (strncmp($type,'V',1) === 0) $arr2[] = $schemaval.$arr[$i][2];
+				} else if (strncmp($owner,'SYS',3) !== 0) $arr2[] = $schemaval.$arr[$i][2];
+			} else if (strncmp($owner,'SYS',3) !== 0) $arr2[] = $schemaval.$arr[$i][2];
+		}
+		return $arr2;
+	}
+
+/*
+See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/db2/htm/db2datetime_data_type_changes.asp
+/ SQL data type codes /
+#define	SQL_UNKNOWN_TYPE	0
+#define SQL_CHAR			1
+#define SQL_NUMERIC		 2
+#define SQL_DECIMAL		 3
+#define SQL_INTEGER		 4
+#define SQL_SMALLINT		5
+#define SQL_FLOAT		   6
+#define SQL_REAL			7
+#define SQL_DOUBLE		  8
+#if (DB2VER >= 0x0300)
+#define SQL_DATETIME		9
+#endif
+#define SQL_VARCHAR		12
+
+
+/ One-parameter shortcuts for date/time data types /
+#if (DB2VER >= 0x0300)
+#define SQL_TYPE_DATE	  91
+#define SQL_TYPE_TIME	  92
+#define SQL_TYPE_TIMESTAMP 93
+
+#define SQL_UNICODE                             (-95)
+#define SQL_UNICODE_VARCHAR                     (-96)
+#define SQL_UNICODE_LONGVARCHAR                 (-97)
+*/
+	function DB2Types($t)
+	{
+		switch ((integer)$t) {
+		case 1:
+		case 12:
+		case 0:
+		case -95:
+		case -96:
+			return 'C';
+		case -97:
+		case -1: //text
+			return 'X';
+		case -4: //image
+			return 'B';
+
+		case 9:
+		case 91:
+			return 'D';
+
+		case 10:
+		case 11:
+		case 92:
+		case 93:
+			return 'T';
+
+		case 4:
+		case 5:
+		case -6:
+			return 'I';
+
+		case -11: // uniqidentifier
+			return 'R';
+		case -7: //bit
+			return 'L';
+
+		default:
+			return 'N';
+		}
+	}
+
+	function MetaColumns($table, $normalize=true)
+	{
+	global $ADODB_FETCH_MODE;
+
+		$false = false;
+		if ($this->uCaseTables) $table = strtoupper($table);
+		$schema = '';
+		$this->_findschema($table,$schema);
+
+		$savem = $ADODB_FETCH_MODE;
+		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+
+        	$colname = "%";
+	        $qid = db2_columns($this->_connectionID, "", $schema, $table, $colname);
+		if (empty($qid)) return $false;
+
+		$rs = new ADORecordSet_db2($qid);
+		$ADODB_FETCH_MODE = $savem;
+
+		if (!$rs) return $false;
+		$rs->_fetch();
+
+		$retarr = array();
+
+		/*
+		$rs->fields indices
+		0 TABLE_QUALIFIER
+		1 TABLE_SCHEM
+		2 TABLE_NAME
+		3 COLUMN_NAME
+		4 DATA_TYPE
+		5 TYPE_NAME
+		6 PRECISION
+		7 LENGTH
+		8 SCALE
+		9 RADIX
+		10 NULLABLE
+		11 REMARKS
+		*/
+		while (!$rs->EOF) {
+			if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) {
+				$fld = new ADOFieldObject();
+				$fld->name = $rs->fields[3];
+				$fld->type = $this->DB2Types($rs->fields[4]);
+
+				// ref: http://msdn.microsoft.com/library/default.asp?url=/archive/en-us/dnaraccgen/html/msdn_odk.asp
+				// access uses precision to store length for char/varchar
+				if ($fld->type == 'C' or $fld->type == 'X') {
+					if ($rs->fields[4] <= -95) // UNICODE
+						$fld->max_length = $rs->fields[7]/2;
+					else
+						$fld->max_length = $rs->fields[7];
+				} else
+					$fld->max_length = $rs->fields[7];
+				$fld->not_null = !empty($rs->fields[10]);
+				$fld->scale = $rs->fields[8];
+				$fld->primary_key = false;
+				$retarr[strtoupper($fld->name)] = $fld;
+			} else if (sizeof($retarr)>0)
+				break;
+			$rs->MoveNext();
+		}
+		$rs->Close();
+		if (empty($retarr)) $retarr = false;
+
+	      $qid = db2_primary_keys($this->_connectionID, "", $schema, $table);
+		if (empty($qid)) return $false;
+
+		$rs = new ADORecordSet_db2($qid);
+		$ADODB_FETCH_MODE = $savem;
+
+		if (!$rs) return $retarr;
+		$rs->_fetch();
+
+		/*
+		$rs->fields indices
+		0 TABLE_CAT
+		1 TABLE_SCHEM
+		2 TABLE_NAME
+		3 COLUMN_NAME
+		4 KEY_SEQ
+		5 PK_NAME
+		*/
+		while (!$rs->EOF) {
+			if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) {
+				$retarr[strtoupper($rs->fields[3])]->primary_key = true;
+			} else if (sizeof($retarr)>0)
+				break;
+			$rs->MoveNext();
+		}
+		$rs->Close();
+
+		if (empty($retarr)) $retarr = false;
+		return $retarr;
+	}
+
+
+	function Prepare($sql)
+	{
+		if (! $this->_bindInputArray) return $sql; // no binding
+		$stmt = db2_prepare($this->_connectionID,$sql);
+		if (!$stmt) {
+			// we don't know whether db2 driver is parsing prepared stmts, so just return sql
+			return $sql;
+		}
+		return array($sql,$stmt,false);
+	}
+
+	/* returns queryID or false */
+	function _query($sql,$inputarr=false)
+	{
+		$last_php_error = $this->resetLastError();
+		$this->_errorMsg = '';
+
+		if ($inputarr) {
+			if (is_array($sql)) {
+				$stmtid = $sql[1];
+			} else {
+				$stmtid = db2_prepare($this->_connectionID,$sql);
+
+				if ($stmtid == false) {
+					$this->_errorMsg = $this->getChangedErrorMsg($last_php_error);
+					return false;
+				}
+			}
+
+			if (! db2_execute($stmtid,$inputarr)) {
+				if ($this->_haserrorfunctions) {
+					$this->_errorMsg = db2_stmt_errormsg();
+					$this->_errorCode = db2_stmt_error();
+				}
+				return false;
+			}
+
+		} else if (is_array($sql)) {
+			$stmtid = $sql[1];
+			if (!db2_execute($stmtid)) {
+				if ($this->_haserrorfunctions) {
+					$this->_errorMsg = db2_stmt_errormsg();
+					$this->_errorCode = db2_stmt_error();
+				}
+				return false;
+			}
+		} else
+			$stmtid = @db2_exec($this->_connectionID,$sql);
+
+		$this->_lastAffectedRows = 0;
+		if ($stmtid) {
+			if (@db2_num_fields($stmtid) == 0) {
+				$this->_lastAffectedRows = db2_num_rows($stmtid);
+				$stmtid = true;
+			} else {
+				$this->_lastAffectedRows = 0;
+			}
+
+			if ($this->_haserrorfunctions) {
+				$this->_errorMsg = '';
+				$this->_errorCode = 0;
+			} else {
+				$this->_errorMsg = $this->getChangedErrorMsg($last_php_error);
+			}
+		} else {
+			if ($this->_haserrorfunctions) {
+				$this->_errorMsg = db2_stmt_errormsg();
+				$this->_errorCode = db2_stmt_error();
+			} else {
+				$this->_errorMsg = $this->getChangedErrorMsg($last_php_error);
+			}
+		}
+		return $stmtid;
+	}
+
+	/*
+		Insert a null into the blob field of the table first.
+		Then use UpdateBlob to store the blob.
+
+		Usage:
+
+		$conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
+		$conn->UpdateBlob('blobtable','blobcol',$blob,'id=1');
+	*/
+	function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB')
+	{
+		return $this->Execute("UPDATE $table SET $column=? WHERE $where",array($val)) != false;
+	}
+
+	// returns true or false
+	function _close()
+	{
+		$ret = @db2_close($this->_connectionID);
+		$this->_connectionID = false;
+		return $ret;
+	}
+
+	function _affectedrows()
+	{
+		return $this->_lastAffectedRows;
+	}
+
+}
+
+/*--------------------------------------------------------------------------------------
+	 Class Name: Recordset
+--------------------------------------------------------------------------------------*/
+
+class ADORecordSet_db2 extends ADORecordSet {
+
+	var $bind = false;
+	var $databaseType = "db2";
+	var $dataProvider = "db2";
+	var $useFetchArray;
+
+	function __construct($id,$mode=false)
+	{
+		if ($mode === false) {
+			global $ADODB_FETCH_MODE;
+			$mode = $ADODB_FETCH_MODE;
+		}
+		$this->fetchMode = $mode;
+
+		$this->_queryID = $id;
+	}
+
+
+	// returns the field object
+	function FetchField($offset = -1)
+	{
+		$o= new ADOFieldObject();
+		$o->name = @db2_field_name($this->_queryID,$offset);
+		$o->type = @db2_field_type($this->_queryID,$offset);
+		$o->max_length = db2_field_width($this->_queryID,$offset);
+		if (ADODB_ASSOC_CASE == 0) $o->name = strtolower($o->name);
+		else if (ADODB_ASSOC_CASE == 1) $o->name = strtoupper($o->name);
+		return $o;
+	}
+
+	/* Use associative array to get fields array */
+	function Fields($colname)
+	{
+		if ($this->fetchMode & ADODB_FETCH_ASSOC) return $this->fields[$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 _initrs()
+	{
+	global $ADODB_COUNTRECS;
+		$this->_numOfRows = ($ADODB_COUNTRECS) ? @db2_num_rows($this->_queryID) : -1;
+		$this->_numOfFields = @db2_num_fields($this->_queryID);
+		// some silly drivers such as db2 as/400 and intersystems cache return _numOfRows = 0
+		if ($this->_numOfRows == 0) $this->_numOfRows = -1;
+	}
+
+	function _seek($row)
+	{
+		return false;
+	}
+
+	// speed up SelectLimit() by switching to ADODB_FETCH_NUM as ADODB_FETCH_ASSOC is emulated
+	function GetArrayLimit($nrows,$offset=-1)
+	{
+		if ($offset <= 0) {
+			$rs = $this->GetArray($nrows);
+			return $rs;
+		}
+		$savem = $this->fetchMode;
+		$this->fetchMode = ADODB_FETCH_NUM;
+		$this->Move($offset);
+		$this->fetchMode = $savem;
+
+		if ($this->fetchMode & ADODB_FETCH_ASSOC) {
+			$this->fields = $this->GetRowAssoc();
+		}
+
+		$results = array();
+		$cnt = 0;
+		while (!$this->EOF && $nrows != $cnt) {
+			$results[$cnt++] = $this->fields;
+			$this->MoveNext();
+		}
+
+		return $results;
+	}
+
+
+	function MoveNext()
+	{
+		if ($this->_numOfRows != 0 && !$this->EOF) {
+			$this->_currentRow++;
+
+			$this->fields = @db2_fetch_array($this->_queryID);
+			if ($this->fields) {
+				if ($this->fetchMode & ADODB_FETCH_ASSOC) {
+					$this->fields = $this->GetRowAssoc();
+				}
+				return true;
+			}
+		}
+		$this->fields = false;
+		$this->EOF = true;
+		return false;
+	}
+
+	function _fetch()
+	{
+
+		$this->fields = db2_fetch_array($this->_queryID);
+		if ($this->fields) {
+			if ($this->fetchMode & ADODB_FETCH_ASSOC) {
+				$this->fields = $this->GetRowAssoc();
+			}
+			return true;
+		}
+		$this->fields = false;
+		return false;
+	}
+
+	function _close()
+	{
+		return @db2_free_result($this->_queryID);
+	}
+
+}