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[Phpgroupware-cvs] phpgwapi/inc/adodb/drivers/adodb-oci8.inc.php, 1.1.2.
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Subject: |
[Phpgroupware-cvs] phpgwapi/inc/adodb/drivers/adodb-oci8.inc.php, 1.1.2.1 |
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Date: |
Thu, 30 Dec 2004 05:51:48 +0100 |
Update of /phpgwapi/inc/adodb/drivers
Added Files:
Branch: proposed-0_9_18-branch
adodb-oci8.inc.php
date: 2004/12/30 04:51:48; author: skwashd; state: Exp; lines: +1310 -0
Log Message:
switch to ADOdb
=====================================================================
<?php
/*
version V4.54 5 Nov 2004 (c) 2000-2004 John Lim. 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.
Latest version is available at http://adodb.sourceforge.net
Code contributed by George Fourlanos <address@hidden>
13 Nov 2000 jlim - removed all ora_* references.
*/
// security - hide paths
if (!defined('ADODB_DIR')) die();
/*
NLS_Date_Format
Allows you to use a date format other than the Oracle Lite default. When a
literal
character string appears where a date value is expected, the Oracle Lite
database
tests the string to see if it matches the formats of Oracle, SQL-92, or the
value
specified for this parameter in the POLITE.INI file. Setting this parameter also
defines the default format used in the TO_CHAR or TO_DATE functions when no
other format string is supplied.
For Oracle the default is dd-mon-yy or dd-mon-yyyy, and for SQL-92 the default
is
yy-mm-dd or yyyy-mm-dd.
Using 'RR' in the format forces two-digit years less than or equal to 49 to be
interpreted as years in the 21st century (20002049), and years over 50 as
years in
the 20th century (19501999). Setting the RR format as the default for all
two-digit
year entries allows you to become year-2000 compliant. For example:
NLS_DATE_FORMAT='RR-MM-DD'
You can also modify the date format using the ALTER SESSION command.
*/
# define the LOB descriptor type for the given type
# returns false if no LOB descriptor
function oci_lob_desc($type) {
switch ($type) {
case OCI_B_BFILE: $result = OCI_D_FILE; break;
case OCI_B_CFILEE: $result = OCI_D_FILE; break;
case OCI_B_CLOB: $result = OCI_D_LOB; break;
case OCI_B_BLOB: $result = OCI_D_LOB; break;
case OCI_B_ROWID: $result = OCI_D_ROWID; break;
default: $result = false; break;
}
return $result;
}
class ADODB_oci8 extends ADOConnection {
var $databaseType = 'oci8';
var $dataProvider = 'oci8';
var $replaceQuote = "''"; // string to use to replace quotes
var $concat_operator='||';
var $sysDate = "TRUNC(SYSDATE)";
var $sysTimeStamp = 'SYSDATE';
var $metaDatabasesSQL = "SELECT USERNAME FROM ALL_USERS WHERE USERNAME
NOT IN ('SYS','SYSTEM','DBSNMP','OUTLN') ORDER BY 1";
var $_stmt;
var $_commit = OCI_COMMIT_ON_SUCCESS;
var $_initdate = true; // init date to YYYY-MM-DD
var $metaTablesSQL = "select table_name,table_type from cat where
table_type in ('TABLE','VIEW')";
var $metaColumnsSQL = "select cname,coltype,width, SCALE, PRECISION,
NULLS, DEFAULTVAL from col where tname='%s' order by colno"; //changed by
address@hidden net
var $_bindInputArray = true;
var $hasGenID = true;
var $_genIDSQL = "SELECT (%s.nextval) FROM DUAL";
var $_genSeqSQL = "CREATE SEQUENCE %s START WITH %s";
var $_dropSeqSQL = "DROP SEQUENCE %s";
var $hasAffectedRows = true;
var $random = "abs(mod(DBMS_RANDOM.RANDOM,10000001)/10000000)";
var $noNullStrings = false;
var $connectSID = false;
var $_bind = false;
var $_hasOCIFetchStatement = false;
var $_getarray = false; // currently not working
var $leftOuter = ''; // oracle wierdness, $col = $value (+) for LEFT
OUTER, $col (+)= $value for RIGHT OUTER
var $session_sharing_force_blob = false; // alter session on updateblob
if set to true
var $firstrows = true; // enable first rows optimization on
SelectLimit()
var $selectOffsetAlg1 = 100; // when to use 1st algorithm of
selectlimit.
var $NLS_DATE_FORMAT = 'YYYY-MM-DD'; // To include time, use
'RRRR-MM-DD HH24:MI:SS'
var $useDBDateFormatForTextInput=false;
var $datetime = false; // MetaType('DATE') returns 'D'
(datetime==false) or 'T' (datetime == true)
var $_refLOBs = array();
// var $ansiOuter = true; // if oracle9
function ADODB_oci8()
{
$this->_hasOCIFetchStatement = ADODB_PHPVER >= 0x4200;
if (defined('ADODB_EXTENSION')) $this->rsPrefix .= 'ext_';
}
/* Function &MetaColumns($table) added by address@hidden/
function &MetaColumns($table)
{
global $ADODB_FETCH_MODE;
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== false) $savem =
$this->SetFetchMode(false);
$rs =
$this->Execute(sprintf($this->metaColumnsSQL,strtoupper($table)));
if (isset($savem)) $this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
if (!$rs) {
$false = false;
return $false;
}
$retarr = array();
while (!$rs->EOF) { //print_r($rs->fields);
$fld = new ADOFieldObject();
$fld->name = $rs->fields[0];
$fld->type = $rs->fields[1];
$fld->max_length = $rs->fields[2];
$fld->scale = $rs->fields[3];
if ($rs->fields[1] == 'NUMBER' && $rs->fields[3] == 0) {
$fld->type ='INT';
$fld->max_length = $rs->fields[4];
}
$fld->not_null = (strncmp($rs->fields[5], 'NOT',3) ===
0);
$fld->binary = (strpos($fld->type,'BLOB') !== false);
$fld->default_value = $rs->fields[6];
if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] =
$fld;
else $retarr[strtoupper($fld->name)] = $fld;
$rs->MoveNext();
}
$rs->Close();
return $retarr;
}
function Time()
{
$rs =& $this->Execute("select
TO_CHAR($this->sysTimeStamp,'YYYY-MM-DD HH24:MI:SS') from dual");
if ($rs && !$rs->EOF) return
$this->UnixTimeStamp(reset($rs->fields));
return false;
}
/*
Multiple modes of connection are supported:
a. Local Database
$conn->Connect(false,'scott','tiger');
b. From tnsnames.ora
$conn->Connect(false,'scott','tiger',$tnsname);
$conn->Connect($tnsname,'scott','tiger');
c. Server + service name
$conn->Connect($serveraddress,'scott,'tiger',$service_name);
d. Server + SID
$conn->connectSID = true;
$conn->Connect($serveraddress,'scott,'tiger',$SID);
Example TNSName:
---------------
NATSOFT.DOMAIN =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = kermit)(PORT = 1523))
)
(CONNECT_DATA =
(SERVICE_NAME = natsoft.domain)
)
)
There are 3 connection modes, 0 = non-persistent, 1 = persistent, 2 = force
new connection
*/
function _connect($argHostname, $argUsername, $argPassword,
$argDatabasename,$mode=0)
{
if (!function_exists('OCIPLogon')) return null;
$this->_errorMsg = false;
$this->_errorCode = false;
if($argHostname) { // added by Jorma Tuomainen <address@hidden>
if (empty($argDatabasename)) $argDatabasename =
$argHostname;
else {
if(strpos($argHostname,":")) {
$argHostinfo=explode(":",$argHostname);
$argHostname=$argHostinfo[0];
$argHostport=$argHostinfo[1];
} else {
$argHostport="1521";
}
if ($this->connectSID) {
$argDatabasename="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=".$argHostname
.")(PORT=$argHostport))(CONNECT_DATA=(SID=$argDatabasename)))";
} else
$argDatabasename="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=".$argHostname
.")(PORT=$argHostport))(CONNECT_DATA=(SERVICE_NAME=$argDatabasename)))";
}
}
//if ($argHostname) print "<p>Connect: 1st argument should be
left blank for $this->databaseType</p>";
if ($mode==1) {
$this->_connectionID = ($this->charSet) ?
OCIPLogon($argUsername,$argPassword,
$argDatabasename)
:
OCIPLogon($argUsername,$argPassword,
$argDatabasename, $this->charSet)
;
if ($this->_connectionID && $this->autoRollback)
OCIrollback($this->_connectionID);
} else if ($mode==2) {
$this->_connectionID = ($this->charSet) ?
OCINLogon($argUsername,$argPassword,
$argDatabasename)
:
OCINLogon($argUsername,$argPassword,
$argDatabasename, $this->charSet);
} else {
$this->_connectionID = ($this->charSet) ?
OCILogon($argUsername,$argPassword,
$argDatabasename)
:
OCILogon($argUsername,$argPassword,
$argDatabasename,$this->charSet);
}
if ($this->_connectionID === false) return false;
if ($this->_initdate) {
$this->Execute("ALTER SESSION SET
NLS_DATE_FORMAT='".$this->NLS_DATE_FORMAT."'");
}
// looks like:
// Oracle8i Enterprise Edition Release 8.1.7.0.0 - Production
With the Partitioning option JServer Release 8.1.7.0.0 - Production
// $vers = OCIServerVersion($this->_connectionID);
// if (strpos($vers,'8i') !== false) $this->ansiOuter = true;
return true;
}
function ServerInfo()
{
$arr['compat'] = $this->GetOne('select value from
sys.database_compatible_level');
$arr['description'] = @OCIServerVersion($this->_connectionID);
$arr['version'] = ADOConnection::_findvers($arr['description']);
return $arr;
}
// returns true or false
function _pconnect($argHostname, $argUsername, $argPassword,
$argDatabasename)
{
return $this->_connect($argHostname, $argUsername,
$argPassword, $argDatabasename,1);
}
// returns true or false
function _nconnect($argHostname, $argUsername, $argPassword,
$argDatabasename)
{
return $this->_connect($argHostname, $argUsername,
$argPassword, $argDatabasename,2);
}
function _affectedrows()
{
if (is_resource($this->_stmt)) return
@OCIRowCount($this->_stmt);
return 0;
}
function IfNull( $field, $ifNull )
{
return " NVL($field, $ifNull) "; // if Oracle
}
// format and return date string in database date format
function DBDate($d)
{
if (empty($d) && $d !== 0) return 'null';
if (is_string($d)) $d = ADORecordSet::UnixDate($d);
return
"TO_DATE(".adodb_date($this->fmtDate,$d).",'".$this->NLS_DATE_FORMAT."')";
}
// format and return date string in database timestamp format
function DBTimeStamp($ts)
{
if (empty($ts) && $ts !== 0) return 'null';
if (is_string($ts)) $ts = ADORecordSet::UnixTimeStamp($ts);
return
'TO_DATE('.adodb_date($this->fmtTimeStamp,$ts).",'RRRR-MM-DD, HH:MI:SS AM')";
}
function RowLock($tables,$where)
{
if ($this->autoCommit) $this->BeginTrans();
return $this->GetOne("select 1 as ignore from $tables where
$where for update");
}
function &MetaTables($ttype=false,$showSchema=false,$mask=false)
{
if ($mask) {
$save = $this->metaTablesSQL;
$mask = $this->qstr(strtoupper($mask));
$this->metaTablesSQL .= " AND table_name like $mask";
}
$ret =& ADOConnection::MetaTables($ttype,$showSchema);
if ($mask) {
$this->metaTablesSQL = $save;
}
return $ret;
}
function BeginTrans()
{
if ($this->transOff) return true;
$this->transCnt += 1;
$this->autoCommit = false;
$this->_commit = OCI_DEFAULT;
return true;
}
function CommitTrans($ok=true)
{
if ($this->transOff) return true;
if (!$ok) return $this->RollbackTrans();
if ($this->transCnt) $this->transCnt -= 1;
$ret = OCIcommit($this->_connectionID);
$this->_commit = OCI_COMMIT_ON_SUCCESS;
$this->autoCommit = true;
return $ret;
}
function RollbackTrans()
{
if ($this->transOff) return true;
if ($this->transCnt) $this->transCnt -= 1;
$ret = OCIrollback($this->_connectionID);
$this->_commit = OCI_COMMIT_ON_SUCCESS;
$this->autoCommit = true;
return $ret;
}
function SelectDB($dbName)
{
return false;
}
function ErrorMsg()
{
if ($this->_errorMsg !== false) return $this->_errorMsg;
if (is_resource($this->_stmt)) $arr = @OCIerror($this->_stmt);
if (empty($arr)) {
$arr = @OCIerror($this->_connectionID);
if ($arr === false) $arr = @OCIError();
if ($arr === false) return '';
}
$this->_errorMsg = $arr['message'];
$this->_errorCode = $arr['code'];
return $this->_errorMsg;
}
function ErrorNo()
{
if ($this->_errorCode !== false) return $this->_errorCode;
if (is_resource($this->_stmt)) $arr = @OCIError($this->_stmt);
if (empty($arr)) {
$arr = @OCIError($this->_connectionID);
if ($arr == false) $arr = @OCIError();
if ($arr == false) return '';
}
$this->_errorMsg = $arr['message'];
$this->_errorCode = $arr['code'];
return $arr['code'];
}
// Format date column in sql string given an input format that
understands Y M D
function SQLDate($fmt, $col=false)
{
if (!$col) $col = $this->sysTimeStamp;
$s = 'TO_CHAR('.$col.",'";
$len = strlen($fmt);
for ($i=0; $i < $len; $i++) {
$ch = $fmt[$i];
switch($ch) {
case 'Y':
case 'y':
$s .= 'YYYY';
break;
case 'Q':
case 'q':
$s .= 'Q';
break;
case 'M':
$s .= 'Mon';
break;
case 'm':
$s .= 'MM';
break;
case 'D':
case 'd':
$s .= 'DD';
break;
case 'H':
$s.= 'HH24';
break;
case 'h':
$s .= 'HH';
break;
case 'i':
$s .= 'MI';
break;
case 's':
$s .= 'SS';
break;
case 'a':
case 'A':
$s .= 'AM';
break;
default:
// handle escape characters...
if ($ch == '\\') {
$i++;
$ch = substr($fmt,$i,1);
}
if (strpos('-/.:;, ',$ch) !== false) $s .= $ch;
else $s .= '"'.$ch.'"';
}
}
return $s. "')";
}
/*
This algorithm makes use of
a. FIRST_ROWS hint
The FIRST_ROWS hint explicitly chooses the approach to optimize
response time,
that is, minimum resource usage to return the first row. Results will
be returned
as soon as they are identified.
b. Uses rownum tricks to obtain only the required rows from a given
offset.
As this uses complicated sql statements, we only use this if the
$offset >= 100.
This idea by Tomas V V Cox.
This implementation does not appear to work with oracle 8.0.5 or
earlier. Comment
out this function then, and the slower SelectLimit() in the base class
will be used.
*/
function &SelectLimit($sql,$nrows=-1,$offset=-1,
$inputarr=false,$secs2cache=0)
{
// seems that oracle only supports 1 hint comment in 8i
if ($this->firstrows) {
if (strpos($sql,'/*+') !== false)
$sql = str_replace('/*+ ','/*+FIRST_ROWS
',$sql);
else
$sql = preg_replace('/^[
\t\n]*select/i','SELECT /*+FIRST_ROWS*/',$sql);
}
if ($offset < $this->selectOffsetAlg1) {
if ($nrows > 0) {
if ($offset > 0) $nrows += $offset;
//$inputarr['adodb_rownum'] = $nrows;
if ($this->databaseType == 'oci8po') {
$sql = "select * from (".$sql.") where
rownum <= ?";
} else {
$sql = "select * from (".$sql.") where
rownum <= :adodb_offset";
}
$inputarr['adodb_offset'] = $nrows;
$nrows = -1;
}
// note that $nrows = 0 still has to work ==> no rows
returned
$rs =&
ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
return $rs;
} else {
// Algorithm by Tomas V V Cox, from PEAR DB oci8.php
// Let Oracle return the name of the columns
$q_fields = "SELECT * FROM (".$sql.") WHERE NULL =
NULL";
$false = false;
if (! $stmt_arr = $this->Prepare($q_fields)) {
return $false;
}
$stmt = $stmt_arr[1];
if (is_array($inputarr)) {
foreach($inputarr as $k => $v) {
if (is_array($v)) {
if (sizeof($v) == 2) //
suggested by address@hidden
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1]);
else
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]);
} else {
$len = -1;
if ($v === ' ') $len = 1;
if (isset($bindarr)) { // is
prepared sql, so no need to ocibindbyname again
$bindarr[$k] = $v;
} else {
// dynamic sql, so rebind every time
OCIBindByName($stmt,":$k",$inputarr[$k],$len);
}
}
}
}
if (!OCIExecute($stmt, OCI_DEFAULT)) {
OCIFreeStatement($stmt);
return $false;
}
$ncols = OCINumCols($stmt);
for ( $i = 1; $i <= $ncols; $i++ ) {
$cols[] = '"'.OCIColumnName($stmt, $i).'"';
}
$result = false;
OCIFreeStatement($stmt);
$fields = implode(',', $cols);
$nrows += $offset;
$offset += 1; // in Oracle rownum starts at 1
if ($this->databaseType == 'oci8po') {
$sql = "SELECT $fields FROM".
"(SELECT rownum as adodb_rownum,
$fields FROM".
" ($sql) WHERE rownum <= ?".
") WHERE adodb_rownum >= ?";
} else {
$sql = "SELECT $fields FROM".
"(SELECT rownum as adodb_rownum,
$fields FROM".
" ($sql) WHERE rownum <=
:adodb_nrows".
") WHERE adodb_rownum >=
:adodb_offset";
}
$inputarr['adodb_nrows'] = $nrows;
$inputarr['adodb_offset'] = $offset;
if ($secs2cache>0) $rs =&
$this->CacheExecute($secs2cache, $sql,$inputarr);
else $rs =& $this->Execute($sql,$inputarr);
return $rs;
}
}
/**
* Usage:
* Store BLOBs and CLOBs
*
* Example: to store $var in a blob
*
* $conn->Execute('insert into TABLE (id,ablob)
values(12,empty_blob())');
* $conn->UpdateBlob('TABLE', 'ablob', $varHoldingBlob, 'ID=12',
'BLOB');
*
* $blobtype supports 'BLOB' and 'CLOB', but you need to change to
'empty_clob()'.
*
* to get length of LOB:
* select DBMS_LOB.GETLENGTH(ablob) from TABLE
*
* If you are using CURSOR_SHARING = force, it appears this will case a
segfault
* under oracle 8.1.7.0. Run:
* $db->Execute('ALTER SESSION SET CURSOR_SHARING=EXACT');
* before UpdateBlob() then...
*/
function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB')
{
//if (strlen($val) < 4000) return $this->Execute("UPDATE $table
SET $column=:blob WHERE $where",array('blob'=>$val)) != false;
switch(strtoupper($blobtype)) {
default: ADOConnection::outp("<b>UpdateBlob</b>: Unknown
blobtype=$blobtype"); return false;
case 'BLOB': $type = OCI_B_BLOB; break;
case 'CLOB': $type = OCI_B_CLOB; break;
}
if ($this->databaseType == 'oci8po')
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}()
WHERE $where RETURNING $column INTO ?";
else
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}()
WHERE $where RETURNING $column INTO :blob";
$desc = OCINewDescriptor($this->_connectionID, OCI_D_LOB);
$arr['blob'] = array($desc,-1,$type);
if ($this->session_sharing_force_blob) $this->Execute('ALTER
SESSION SET CURSOR_SHARING=EXACT');
$commit = $this->autoCommit;
if ($commit) $this->BeginTrans();
$rs = $this->Execute($sql,$arr);
if ($rez = !empty($rs)) $desc->save($val);
$desc->free();
if ($commit) $this->CommitTrans();
if ($this->session_sharing_force_blob) $this->Execute('ALTER
SESSION SET CURSOR_SHARING=FORCE');
if ($rez) $rs->Close();
return $rez;
}
/**
* Usage: store file pointed to by $var in a blob
*/
function UpdateBlobFile($table,$column,$val,$where,$blobtype='BLOB')
{
switch(strtoupper($blobtype)) {
default: ADOConnection::outp( "<b>UpdateBlob</b>: Unknown
blobtype=$blobtype"); return false;
case 'BLOB': $type = OCI_B_BLOB; break;
case 'CLOB': $type = OCI_B_CLOB; break;
}
if ($this->databaseType == 'oci8po')
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}()
WHERE $where RETURNING $column INTO ?";
else
$sql = "UPDATE $table set $column=EMPTY_{$blobtype}()
WHERE $where RETURNING $column INTO :blob";
$desc = OCINewDescriptor($this->_connectionID, OCI_D_LOB);
$arr['blob'] = array($desc,-1,$type);
$this->BeginTrans();
$rs = ADODB_oci8::Execute($sql,$arr);
if ($rez = !empty($rs)) $desc->savefile($val);
$desc->free();
$this->CommitTrans();
if ($rez) $rs->Close();
return $rez;
}
/*
Example of usage:
$stmt = $this->Prepare('insert into emp (empno, ename) values
(:empno, :ename)');
*/
function Prepare($sql,$cursor=false)
{
static $BINDNUM = 0;
$stmt = OCIParse($this->_connectionID,$sql);
if (!$stmt) return false;
$BINDNUM += 1;
$sttype = @OCIStatementType($stmt);
if ($sttype == 'BEGIN' || $sttype == 'DECLARE') {
return array($sql,$stmt,0,$BINDNUM, ($cursor) ?
OCINewCursor($this->_connectionID) : false);
}
return array($sql,$stmt,0,$BINDNUM);
}
/*
Call an oracle stored procedure and return a cursor variable.
Convert the cursor variable into a recordset.
Concept by Robert Tuttle address@hidden
Example:
Note: we return a cursor variable in :RS2
$rs = $db->ExecuteCursor("BEGIN adodb.open_tab(:RS2);
END;",'RS2');
$rs = $db->ExecuteCursor(
"BEGIN :RS2 = adodb.getdata(:VAR1); END;",
'RS2',
array('VAR1' => 'Mr Bean'));
*/
function &ExecuteCursor($sql,$cursorName='rs',$params=false)
{
if (is_array($sql)) $stmt = $sql;
else $stmt = ADODB_oci8::Prepare($sql,true); # true to allocate
OCINewCursor
if (is_array($stmt) && sizeof($stmt) >= 5) {
$this->Parameter($stmt, $ignoreCur, $cursorName, false,
-1, OCI_B_CURSOR);
if ($params) {
foreach($params as $k => $v) {
$this->Parameter($stmt,$params[$k], $k);
}
}
}
return $this->Execute($stmt);
}
/*
Bind a variable -- very, very fast for executing repeated
statements in oracle.
Better than using
for ($i = 0; $i < $max; $i++) {
$p1 = ?; $p2 = ?; $p3 = ?;
$this->Execute("insert into table (col0, col1,
col2) values (:0, :1, :2)",
array($p1,$p2,$p3));
}
Usage:
$stmt = $DB->Prepare("insert into table (col0, col1,
col2) values (:0, :1, :2)");
$DB->Bind($stmt, $p1);
$DB->Bind($stmt, $p2);
$DB->Bind($stmt, $p3);
for ($i = 0; $i < $max; $i++) {
$p1 = ?; $p2 = ?; $p3 = ?;
$DB->Execute($stmt);
}
Some timings:
** Test table has 3 cols, and 1 index. Test to insert
1000 records
Time 0.6081s (1644.60 inserts/sec) with direct
OCIParse/OCIExecute
Time 0.6341s (1577.16 inserts/sec) with ADOdb
Prepare/Bind/Execute
Time 1.5533s ( 643.77 inserts/sec) with pure SQL using
Execute
Now if PHP only had batch/bulk updating like Java or PL/SQL...
Note that the order of parameters differs from OCIBindByName,
because we default the names to :0, :1, :2
*/
function
Bind(&$stmt,&$var,$size=4000,$type=false,$name=false,$isOutput=false)
{
if (!is_array($stmt)) return false;
if (($type == OCI_B_CURSOR) && sizeof($stmt) >= 5) {
return OCIBindByName($stmt[1],":".$name,$stmt[4],$size,$type);
}
if ($name == false) {
if ($type !== false) $rez =
OCIBindByName($stmt[1],":".$stmt[2],$var,$size,$type);
else $rez =
OCIBindByName($stmt[1],":".$stmt[2],$var,$size); // +1 byte for null terminator
$stmt[2] += 1;
} else if (oci_lob_desc($type)) {
if ($this->debug) {
ADOConnection::outp("<b>Bind</b>: name =
$name");
}
//we have to create a new Descriptor here
$numlob = count($this -> _refLOBs);
$this -> _refLOBs[$numlob]['LOB'] =
OCINewDescriptor($this->_connectionID, oci_lob_desc($type));
$this -> _refLOBs[$numlob]['TYPE'] = $isOutput;
$tmp = &$this -> _refLOBs[$numlob]['LOB'];
$rez = OCIBindByName($stmt[1], ":".$name, $tmp, -1, $type);
if ($this->debug) {
ADOConnection::outp("<b>Bind</b>: descriptor
has been allocated, var binded");
}
// if type is input then write data to lob now
if ($isOutput == false) {
$var = $this -> BlobEncode($var);
$tmp -> WriteTemporary($var);
if ($this->debug) {
ADOConnection::outp("<b>Bind</b>: LOB
has been written to temp");
}
} else {
$this -> _refLOBs[$numlob]['VAR'] = &$var;
}
$rez = $tmp;
} else {
if ($this->debug)
ADOConnection::outp("<b>Bind</b>: name =
$name");
if ($type !== false) $rez =
OCIBindByName($stmt[1],":".$name,$var,$size,$type);
else $rez =
OCIBindByName($stmt[1],":".$name,$var,$size); // +1 byte for null terminator
}
return $rez;
}
function Param($name,$type=false)
{
return ':'.$name;
}
/*
Usage:
$stmt = $db->Prepare('select * from table where id =:myid and
group=:group');
$db->Parameter($stmt,$id,'myid');
$db->Parameter($stmt,$group,'group');
$db->Execute($stmt);
@param $stmt Statement returned by Prepare() or PrepareSP().
@param $var PHP variable to bind to
@param $name Name of stored procedure variable name to bind to.
@param [$isOutput] Indicates direction of parameter 0/false=IN
1=OUT 2= IN/OUT. This is ignored in oci8.
@param [$maxLen] Holds an maximum length of the variable.
@param [$type] The data type of $var. Legal values depend on
driver.
See OCIBindByName documentation at php.net.
*/
function
Parameter(&$stmt,&$var,$name,$isOutput=false,$maxLen=4000,$type=false)
{
if ($this->debug) {
$prefix = ($isOutput) ? 'Out' : 'In';
$ztype = (empty($type)) ? 'false' : $type;
ADOConnection::outp(
"{$prefix}Parameter(\$stmt, \$php_var='$var', \$name='$name', \$maxLen=$maxLen,
\$type=$ztype);");
}
return
$this->Bind($stmt,$var,$maxLen,$type,$name,$isOutput);
}
/*
returns query ID if successful, otherwise false
this version supports:
1. $db->execute('select * from table');
2. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)');
$db->execute($prepared_statement, array(1,2,3));
3. $db->execute('insert into table (a,b,c) values
(:a,:b,:c)',array('a'=>1,'b'=>2,'c'=>3));
4. $db->prepare('insert into table (a,b,c) values (:0,:1,:2)');
$db->bind($stmt,1); $db->bind($stmt,2); $db->bind($stmt,3);
$db->execute($stmt);
*/
function _query($sql,$inputarr)
{
if (is_array($sql)) { // is prepared sql
$stmt = $sql[1];
// we try to bind to permanent array, so that
OCIBindByName is persistent
// and carried out once only - note that max array
element size is 4000 chars
if (is_array($inputarr)) {
$bindpos = $sql[3];
if (isset($this->_bind[$bindpos])) {
// all tied up already
$bindarr = &$this->_bind[$bindpos];
} else {
// one statement to bind them all
$bindarr = array();
foreach($inputarr as $k => $v) {
$bindarr[$k] = $v;
OCIBindByName($stmt,":$k",$bindarr[$k],4000);
}
$this->_bind[$bindpos] = &$bindarr;
}
}
} else {
$stmt=OCIParse($this->_connectionID,$sql);
}
$this->_stmt = $stmt;
if (!$stmt) return false;
if (defined('ADODB_PREFETCH_ROWS'))
@OCISetPrefetch($stmt,ADODB_PREFETCH_ROWS);
if (is_array($inputarr)) {
foreach($inputarr as $k => $v) {
if (is_array($v)) {
if (sizeof($v) == 2) // suggested by
address@hidden
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1]);
else
OCIBindByName($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]);
if ($this->debug==99) echo "name=:$k",'
var='.$inputarr[$k][0],' len='.$v[1],' type='.$v[2],'<br>';
} else {
$len = -1;
if ($v === ' ') $len = 1;
if (isset($bindarr)) { // is prepared
sql, so no need to ocibindbyname again
$bindarr[$k] = $v;
} else {
// dynamic sql, so rebind every time
OCIBindByName($stmt,":$k",$inputarr[$k],$len);
}
}
}
}
$this->_errorMsg = false;
$this->_errorCode = false;
if (OCIExecute($stmt,$this->_commit)) {
//OCIInternalDebug(1);
if (count($this -> _refLOBs) > 0) {
foreach ($this -> _refLOBs as $key => $value) {
if ($this -> _refLOBs[$key]['TYPE'] ==
true) {
$tmp = $this ->
_refLOBs[$key]['LOB'] -> load();
if ($this -> debug) {
ADOConnection::outp("<b>OUT LOB</b>: LOB has been loaded. <br>");
}
//$_GLOBALS[$this ->
_refLOBs[$key]['VAR']] = $tmp;
$this -> _refLOBs[$key]['VAR']
= $tmp;
}
$this -> _refLOBs[$key]['LOB'] ->
free();
unset($this -> _refLOBs[$key]);
}
}
switch (@OCIStatementType($stmt)) {
case "SELECT":
return $stmt;
case 'DECLARE':
case "BEGIN":
if (is_array($sql) && !empty($sql[4])) {
$cursor = $sql[4];
if (is_resource($cursor)) {
$ok =
OCIExecute($cursor);
return $cursor;
}
return $stmt;
} else {
if (is_resource($stmt)) {
OCIFreeStatement($stmt);
return true;
}
return $stmt;
}
break;
default :
// ociclose -- no because it could be
used in a LOB?
return true;
}
}
return false;
}
// returns true or false
function _close()
{
if (!$this->_connectionID) return;
if (!$this->autoCommit) OCIRollback($this->_connectionID);
if (count($this -> _refLOBs) > 0) {
foreach ($this -> _refLOBs as $key => $value) {
$this -> _refLOBs[$key] -> free();
unset($this -> _refLOBs[$key]);
}
}
OCILogoff($this->_connectionID);
$this->_stmt = false;
$this->_connectionID = false;
}
function MetaPrimaryKeys($table, $owner=false,$internalKey=false)
{
if ($internalKey) return array('ROWID');
// tested with oracle 8.1.7
$table = strtoupper($table);
if ($owner) {
$owner_clause = "AND ((a.OWNER = b.OWNER) AND (a.OWNER
= UPPER('$owner')))";
$ptab = 'ALL_';
} else {
$owner_clause = '';
$ptab = 'USER_';
}
$sql = "
SELECT /*+ RULE */ distinct b.column_name
FROM {$ptab}CONSTRAINTS a
, {$ptab}CONS_COLUMNS b
WHERE ( UPPER(b.table_name) = ('$table'))
AND (UPPER(a.table_name) = ('$table') and a.constraint_type = 'P')
$owner_clause
AND (a.constraint_name = b.constraint_name)";
$rs = $this->Execute($sql);
if ($rs && !$rs->EOF) {
$arr =& $rs->GetArray();
$a = array();
foreach($arr as $v) {
$a[] = reset($v);
}
return $a;
}
else return false;
}
// http://gis.mit.edu/classes/11.521/sqlnotes/referential_integrity.html
function MetaForeignKeys($table, $owner=false)
{
global $ADODB_FETCH_MODE;
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
$table = $this->qstr(strtoupper($table));
if (!$owner) {
$owner = $this->user;
$tabp = 'user_';
} else
$tabp = 'all_';
$owner = ' and owner='.$this->qstr(strtoupper($owner));
$sql =
"select constraint_name,r_owner,r_constraint_name
from {$tabp}constraints
where constraint_type = 'R' and table_name = $table $owner";
$constraints =& $this->GetArray($sql);
$arr = false;
foreach($constraints as $constr) {
$cons = $this->qstr($constr[0]);
$rowner = $this->qstr($constr[1]);
$rcons = $this->qstr($constr[2]);
$cols = $this->GetArray("select column_name from
{$tabp}cons_columns where constraint_name=$cons $owner order by position");
$tabcol = $this->GetArray("select
table_name,column_name from {$tabp}cons_columns where owner=$rowner and
constraint_name=$rcons order by position");
if ($cols && $tabcol)
for ($i=0, $max=sizeof($cols); $i < $max; $i++)
{
$arr[$tabcol[$i][0]] =
$cols[$i][0].'='.$tabcol[$i][1];
}
}
$ADODB_FETCH_MODE = $save;
return $arr;
}
function CharMax()
{
return 4000;
}
function TextMax()
{
return 4000;
}
/**
* Quotes a string.
* An example is $db->qstr("Don't bother",magic_quotes_runtime());
*
* @param s the string to quote
* @param [magic_quotes] if $s is GET/POST var, set to
get_magic_quotes_gpc().
* This undoes the stupidity of magic
quotes for GPC.
*
* @return quoted string to be sent back to database
*/
function qstr($s,$magic_quotes=false)
{
$nofixquotes=false;
if ($this->noNullStrings && strlen($s)==0)$s = ' ';
if (!$magic_quotes) {
if ($this->replaceQuote[0] == '\\'){
$s = str_replace('\\','\\\\',$s);
}
return "'".str_replace("'",$this->replaceQuote,$s)."'";
}
// undo magic quotes for "
$s = str_replace('\\"','"',$s);
$s = str_replace('\\\\','\\',$s);
return "'".str_replace("\\'",$this->replaceQuote,$s)."'";
}
}
/*--------------------------------------------------------------------------------------
Class Name: Recordset
--------------------------------------------------------------------------------------*/
class ADORecordset_oci8 extends ADORecordSet {
var $databaseType = 'oci8';
var $bind=false;
var $_fieldobjs;
//var $_arr = false;
function ADORecordset_oci8($queryID,$mode=false)
{
if ($mode === false) {
global $ADODB_FETCH_MODE;
$mode = $ADODB_FETCH_MODE;
}
switch ($mode)
{
default:
case ADODB_FETCH_NUM: $this->fetchMode =
OCI_NUM+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
case ADODB_FETCH_ASSOC:$this->fetchMode =
OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
case ADODB_FETCH_DEFAULT:
case ADODB_FETCH_BOTH:$this->fetchMode =
OCI_NUM+OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
}
$this->adodbFetchMode = $mode;
$this->_queryID = $queryID;
}
function Init()
{
if ($this->_inited) return;
$this->_inited = true;
if ($this->_queryID) {
$this->_currentRow = 0;
@$this->_initrs();
$this->EOF = !$this->_fetch();
/*
// based on idea by Gaetano Giunta to detect unusual
oracle errors
// see
http://phplens.com/lens/lensforum/msgs.php?id=6771
$err = OCIError($this->_queryID);
if ($err && $this->connection->debug)
ADOConnection::outp($err);
*/
if (!is_array($this->fields)) {
$this->_numOfRows = 0;
$this->fields = array();
}
} else {
$this->fields = array();
$this->_numOfRows = 0;
$this->_numOfFields = 0;
$this->EOF = true;
}
}
function _initrs()
{
$this->_numOfRows = -1;
$this->_numOfFields = OCInumcols($this->_queryID);
if ($this->_numOfFields>0) {
$this->_fieldobjs = array();
$max = $this->_numOfFields;
for ($i=0;$i<$max; $i++) $this->_fieldobjs[] =
$this->_FetchField($i);
}
}
/* Returns: an object containing field information.
Get column information in the Recordset object.
fetchField() can be used in order to obtain information about
fields in a certain query result. If the field offset
isn't specified, the next field that wasn't yet retrieved by
fetchField() is retrieved. */
function &_FetchField($fieldOffset = -1)
{
$fld = new ADOFieldObject;
$fieldOffset += 1;
$fld->name =OCIcolumnname($this->_queryID, $fieldOffset);
$fld->type = OCIcolumntype($this->_queryID, $fieldOffset);
$fld->max_length = OCIcolumnsize($this->_queryID, $fieldOffset);
if ($fld->type == 'NUMBER') {
$p = OCIColumnPrecision($this->_queryID, $fieldOffset);
$sc = OCIColumnScale($this->_queryID, $fieldOffset);
if ($p != 0 && $sc == 0) $fld->type = 'INT';
//echo " $this->name ($p.$sc) ";
}
return $fld;
}
/* For some reason, OCIcolumnname fails when called after _initrs() so
we cache it */
function &FetchField($fieldOffset = -1)
{
return $this->_fieldobjs[$fieldOffset];
}
/*
// 10% speedup to move MoveNext to child class
function _MoveNext()
{
//global $ADODB_EXTENSION;if ($ADODB_EXTENSION) return
@adodb_movenext($this);
if ($this->EOF) return false;
$this->_currentRow++;
if(@OCIfetchinto($this->_queryID,$this->fields,$this->fetchMode))
return true;
$this->EOF = true;
return false;
} */
function MoveNext()
{
if
(@OCIfetchinto($this->_queryID,$this->fields,$this->fetchMode)) {
$this->_currentRow += 1;
return true;
}
if (!$this->EOF) {
$this->_currentRow += 1;
$this->EOF = true;
}
return false;
}
/* Optimize SelectLimit() by using OCIFetch() instead of OCIFetchInto()
*/
function &GetArrayLimit($nrows,$offset=-1)
{
if ($offset <= 0) {
$arr =& $this->GetArray($nrows);
return $arr;
}
for ($i=1; $i < $offset; $i++)
if (address@hidden($this->_queryID)) return array();
if
(address@hidden($this->_queryID,$this->fields,$this->fetchMode)) return array();
$results = array();
$cnt = 0;
while (!$this->EOF && $nrows != $cnt) {
$results[$cnt++] = $this->fields;
$this->MoveNext();
}
return $results;
}
/* Use associative array to get fields array */
function Fields($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($colname)]];
}
function _seek($row)
{
return false;
}
function _fetch()
{
return
@OCIfetchinto($this->_queryID,$this->fields,$this->fetchMode);
}
/* close() only needs to be called if you are worried
about using too much memory while your script
is running. All associated result memory for the
specified result identifier will automatically be freed. */
function _close()
{
if ($this->connection->_stmt === $this->_queryID)
$this->connection->_stmt = false;
@OCIFreeStatement($this->_queryID);
$this->_queryID = false;
}
function MetaType($t,$len=-1)
{
if (is_object($t)) {
$fieldobj = $t;
$t = $fieldobj->type;
$len = $fieldobj->max_length;
}
switch (strtoupper($t)) {
case 'VARCHAR':
case 'VARCHAR2':
case 'CHAR':
case 'VARBINARY':
case 'BINARY':
case 'NCHAR':
case 'NVARCHAR':
case 'NVARCHAR2':
if (isset($this) && $len <= $this->blobSize)
return 'C';
case 'NCLOB':
case 'LONG':
case 'LONG VARCHAR':
case 'CLOB':
return 'X';
case 'LONG RAW':
case 'LONG VARBINARY':
case 'BLOB':
return 'B';
case 'DATE':
return ($this->connection->datetime) ? 'T' : 'D';
case 'TIMESTAMP': return 'T';
case 'INT':
case 'SMALLINT':
case 'INTEGER':
return 'I';
default: return 'N';
}
}
}
class ADORecordSet_ext_oci8 extends ADORecordSet_oci8 {
function ADORecordSet_ext_oci8($queryID,$mode=false)
{
if ($mode === false) {
global $ADODB_FETCH_MODE;
$mode = $ADODB_FETCH_MODE;
}
switch ($mode)
{
default:
case ADODB_FETCH_NUM: $this->fetchMode =
OCI_NUM+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
case ADODB_FETCH_ASSOC:$this->fetchMode =
OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
case ADODB_FETCH_DEFAULT:
case ADODB_FETCH_BOTH:$this->fetchMode =
OCI_NUM+OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS; break;
}
$this->adodbFetchMode = $mode;
$this->_queryID = $queryID;
}
function MoveNext()
{
return adodb_movenext($this);
}
}
?>
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