+++ /dev/null
-<?php
-/*
-V5.02 24 Sept 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved.
- Released under both BSD license and Lesser GPL library license.
- Whenever there is any discrepancy between the two licenses,
- the BSD license will take precedence.
-Set tabs to 4 for best viewing.
-
- Latest version is available at http://adodb.sourceforge.net
-
- DB2 data driver. Requires ODBC.
-
-From phpdb list:
-
-Hi Andrew,
-
-thanks a lot for your help. Today we discovered what
-our real problem was:
-
-After "playing" a little bit with the php-scripts that try
-to connect to the IBM DB2, we set the optional parameter
-Cursortype when calling odbc_pconnect(....).
-
-And the exciting thing: When we set the cursor type
-to SQL_CUR_USE_ODBC Cursor Type, then
-the whole query speed up from 1 till 10 seconds
-to 0.2 till 0.3 seconds for 100 records. Amazing!!!
-
-Therfore, PHP is just almost fast as calling the DB2
-from Servlets using JDBC (don't take too much care
-about the speed at whole: the database was on a
-completely other location, so the whole connection
-was made over a slow network connection).
-
-I hope this helps when other encounter the same
-problem when trying to connect to DB2 from
-PHP.
-
-Kind regards,
-Christian Szardenings
-
-2 Oct 2001
-Mark Newnham has discovered that the SQL_CUR_USE_ODBC is not supported by
-IBM's DB2 ODBC driver, so this must be a 3rd party ODBC driver.
-
-From the IBM CLI Reference:
-
-SQL_ATTR_ODBC_CURSORS (DB2 CLI v5)
-This connection attribute is defined by ODBC, but is not supported by DB2
-CLI. Any attempt to set or get this attribute will result in an SQLSTATE of
-HYC00 (Driver not capable).
-
-A 32-bit option specifying how the Driver Manager uses the ODBC cursor
-library.
-
-So I guess this means the message [above] was related to using a 3rd party
-odbc driver.
-
-Setting SQL_CUR_USE_ODBC
-========================
-To set SQL_CUR_USE_ODBC for drivers that require it, do this:
-
-$db = NewADOConnection('odbc_db2');
-$db->curMode = SQL_CUR_USE_ODBC;
-$db->Connect($dsn, $userid, $pwd);
-
-
-
-USING CLI INTERFACE
-===================
-
-I have had reports that the $host and $database params have to be reversed in
-Connect() when using the CLI interface. From Halmai Csongor csongor.halmai#nexum.hu:
-
-> The symptom is that if I change the database engine from postgres or any other to DB2 then the following
-> connection command becomes wrong despite being described this version to be correct in the docs.
->
-> $connection_object->Connect( $DATABASE_HOST, $DATABASE_AUTH_USER_NAME, $DATABASE_AUTH_PASSWORD, $DATABASE_NAME )
->
-> In case of DB2 I had to swap the first and last arguments in order to connect properly.
-
-
-System Error 5
-==============
-IF you get a System Error 5 when trying to Connect/Load, it could be a permission problem. Give the user connecting
-to DB2 full rights to the DB2 SQLLIB directory, and place the user in the DBUSERS group.
-*/
-
-// security - hide paths
-if (!defined('ADODB_DIR')) die();
-
-if (!defined('_ADODB_ODBC_LAYER')) {
- include(ADODB_DIR."/drivers/adodb-odbc.inc.php");
-}
-if (!defined('ADODB_ODBC_DB2')){
-define('ADODB_ODBC_DB2',1);
-
-class ADODB_ODBC_DB2 extends ADODB_odbc {
- var $databaseType = "db2";
- var $concat_operator = '||';
- var $sysTime = 'CURRENT TIME';
- var $sysDate = 'CURRENT DATE';
- var $sysTimeStamp = 'CURRENT TIMESTAMP';
- // The complete string representation of a timestamp has the form
- // yyyy-mm-dd-hh.mm.ss.nnnnnn.
- var $fmtTimeStamp = "'Y-m-d-H.i.s'";
- var $ansiOuter = true;
- var $identitySQL = 'values IDENTITY_VAL_LOCAL()';
- var $_bindInputArray = true;
- var $hasInsertID = true;
- var $rsPrefix = 'ADORecordset_odbc_';
-
- function ADODB_DB2()
- {
- if (strncmp(PHP_OS,'WIN',3) === 0) $this->curmode = SQL_CUR_USE_ODBC;
- $this->ADODB_odbc();
- }
-
- function IfNull( $field, $ifNull )
- {
- return " COALESCE($field, $ifNull) "; // if DB2 UDB
- }
-
- function ServerInfo()
- {
- //odbc_setoption($this->_connectionID,1,101 /*SQL_ATTR_ACCESS_MODE*/, 1 /*SQL_MODE_READ_ONLY*/);
- $vers = $this->GetOne('select versionnumber from sysibm.sysversions');
- //odbc_setoption($this->_connectionID,1,101, 0 /*SQL_MODE_READ_WRITE*/);
- return array('description'=>'DB2 ODBC driver', 'version'=>$vers);
- }
-
- function _insertid()
- {
- return $this->GetOne($this->identitySQL);
- }
-
- function RowLock($tables,$where,$flds='1 as ignore')
- {
- if ($this->_autocommit) $this->BeginTrans();
- return $this->GetOne("select $flds from $tables where $where for update");
- }
-
- function MetaTables($ttype=false,$showSchema=false, $qtable="%", $qschema="%")
- {
- global $ADODB_FETCH_MODE;
-
- $savem = $ADODB_FETCH_MODE;
- $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
- $qid = odbc_tables($this->_connectionID, "", $qschema, $qtable, "");
-
- $rs = new ADORecordSet_odbc($qid);
-
- $ADODB_FETCH_MODE = $savem;
- if (!$rs) {
- $false = false;
- return $false;
- }
- $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change;
-
- $arr = $rs->GetArray();
- //print_r($arr);
-
- $rs->Close();
- $arr2 = array();
-
- if ($ttype) {
- $isview = strncmp($ttype,'V',1) === 0;
- }
- for ($i=0; $i < sizeof($arr); $i++) {
-
- if (!$arr[$i][2]) continue;
- if (strncmp($arr[$i][1],'SYS',3) === 0) continue;
-
- $type = $arr[$i][3];
-
- if ($showSchema) $arr[$i][2] = $arr[$i][1].'.'.$arr[$i][2];
-
- if ($ttype) {
- if ($isview) {
- if (strncmp($type,'V',1) === 0) $arr2[] = $arr[$i][2];
- } else if (strncmp($type,'T',1) === 0) $arr2[] = $arr[$i][2];
- } else if (strncmp($type,'S',1) !== 0) $arr2[] = $arr[$i][2];
- }
- return $arr2;
- }
-
- function MetaIndexes ($table, $primary = FALSE, $owner=false)
- {
- // save old fetch mode
- global $ADODB_FETCH_MODE;
- $save = $ADODB_FETCH_MODE;
- $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
- if ($this->fetchMode !== FALSE) {
- $savem = $this->SetFetchMode(FALSE);
- }
- $false = false;
- // get index details
- $table = strtoupper($table);
- $SQL="SELECT NAME, UNIQUERULE, COLNAMES FROM SYSIBM.SYSINDEXES WHERE TBNAME='$table'";
- if ($primary)
- $SQL.= " AND UNIQUERULE='P'";
- $rs = $this->Execute($SQL);
- if (!is_object($rs)) {
- if (isset($savem))
- $this->SetFetchMode($savem);
- $ADODB_FETCH_MODE = $save;
- return $false;
- }
- $indexes = array ();
- // parse index data into array
- while ($row = $rs->FetchRow()) {
- $indexes[$row[0]] = array(
- 'unique' => ($row[1] == 'U' || $row[1] == 'P'),
- 'columns' => array()
- );
- $cols = ltrim($row[2],'+');
- $indexes[$row[0]]['columns'] = explode('+', $cols);
- }
- if (isset($savem)) {
- $this->SetFetchMode($savem);
- $ADODB_FETCH_MODE = $save;
- }
- return $indexes;
- }
-
- // Format date column in sql string given an input format that understands Y M D
- function SQLDate($fmt, $col=false)
- {
- // use right() and replace() ?
- if (!$col) $col = $this->sysDate;
- $s = '';
-
- $len = strlen($fmt);
- for ($i=0; $i < $len; $i++) {
- if ($s) $s .= '||';
- $ch = $fmt[$i];
- switch($ch) {
- case 'Y':
- case 'y':
- $s .= "char(year($col))";
- break;
- case 'M':
- $s .= "substr(monthname($col),1,3)";
- break;
- case 'm':
- $s .= "right(digits(month($col)),2)";
- break;
- case 'D':
- case 'd':
- $s .= "right(digits(day($col)),2)";
- break;
- case 'H':
- case 'h':
- if ($col != $this->sysDate) $s .= "right(digits(hour($col)),2)";
- else $s .= "''";
- break;
- case 'i':
- case 'I':
- if ($col != $this->sysDate)
- $s .= "right(digits(minute($col)),2)";
- else $s .= "''";
- break;
- case 'S':
- case 's':
- if ($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 $s;
- }
-
-
- function SelectLimit($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;
- }
-
-};
-
-
-class ADORecordSet_odbc_db2 extends ADORecordSet_odbc {
-
- var $databaseType = "db2";
-
- function ADORecordSet_db2($id,$mode=false)
- {
- $this->ADORecordSet_odbc($id,$mode);
- }
-
- function MetaType($t,$len=-1,$fieldobj=false)
- {
- if (is_object($t)) {
- $fieldobj = $t;
- $t = $fieldobj->type;
- $len = $fieldobj->max_length;
- }
-
- switch (strtoupper($t)) {
- case 'VARCHAR':
- case 'CHAR':
- case 'CHARACTER':
- case 'C':
- if ($len <= $this->blobSize) return 'C';
-
- case 'LONGCHAR':
- case 'TEXT':
- case 'CLOB':
- case 'DBCLOB': // double-byte
- case 'X':
- return 'X';
-
- case 'BLOB':
- case 'GRAPHIC':
- case 'VARGRAPHIC':
- return 'B';
-
- case 'DATE':
- case 'D':
- return 'D';
-
- case 'TIME':
- case 'TIMESTAMP':
- case 'T':
- return 'T';
-
- //case 'BOOLEAN':
- //case 'BIT':
- // return 'L';
-
- //case 'COUNTER':
- // return 'R';
-
- case 'INT':
- case 'INTEGER':
- case 'BIGINT':
- case 'SMALLINT':
- case 'I':
- return 'I';
-
- default: return 'N';
- }
- }
-}
-
-} //define
-?>
\ No newline at end of file
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