--- /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
BGBM BDI Projects / geo.git / blobdiff