diff options
Diffstat (limited to 'trunk/adodb5/drivers/adodb-db2.inc.php')
| -rw-r--r-- | trunk/adodb5/drivers/adodb-db2.inc.php | 848 |
1 files changed, 0 insertions, 848 deletions
diff --git a/trunk/adodb5/drivers/adodb-db2.inc.php b/trunk/adodb5/drivers/adodb-db2.inc.php deleted file mode 100644 index a71e36a5..00000000 --- a/trunk/adodb5/drivers/adodb-db2.inc.php +++ /dev/null @@ -1,848 +0,0 @@ -<?php -/* - V5.18 3 Sep 2012 (c) 2000-2012 (jlim#natsoft.com). All rights reserved. - - 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 ADODB_db2() - { - $this->_haserrorfunctions = ADODB_PHPVER >= 0x4050; - } - - // returns true or false - function _connect($argDSN, $argUsername, $argPassword, $argDatabasename) - { - global $php_errormsg; - - 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); - } - if (isset($php_errormsg)) $php_errormsg = ''; - - // 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) - { - global $php_errormsg; - - 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', $this->binmode); - - if (isset($php_errormsg)) $php_errormsg = ''; - $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; - - if ($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); - } - if (isset($php_errormsg)) $php_errormsg = ''; - - $this->_errorMsg = @db2_conn_errormsg(); - if ($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) - { - 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) - { - if (empty($this->_dropSeqSQL)) return false; - return $this->Execute(sprintf($this->_dropSeqSQL,$seqname)); - } - - function SelectLimit($sql,$nrows=-1,$offset=-1,$inputArr=false) - { - $nrows = (integer) $nrows; - if ($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) - { - 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) - { - 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) - { - GLOBAL $php_errormsg; - if (isset($php_errormsg)) $php_errormsg = ''; - $this->_error = ''; - - if ($inputarr) { - if (is_array($sql)) { - $stmtid = $sql[1]; - } else { - $stmtid = db2_prepare($this->_connectionID,$sql); - - if ($stmtid == false) { - $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; - return false; - } - } - - if (! db2_execute($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 - $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; - } else { - if ($this->_haserrorfunctions) { - $this->_errorMsg = db2_stmt_errormsg(); - $this->_errorCode = db2_stmt_error(); - } else - $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; - - } - 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 $useFetchArray; - - function ADORecordSet_db2($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(ADODB_ASSOC_CASE); - } - - $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(ADODB_ASSOC_CASE); - } - 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(ADODB_ASSOC_CASE); - } - return true; - } - $this->fields = false; - return false; - } - - function _close() - { - return @db2_free_result($this->_queryID); - } - -} -?>
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