Current File : /home/vacivi36/ava/lib/adodb/drivers/adodb-oci8.inc.php
<?php
/**
* FileDescription
*
* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
*
* @package ADOdb
* @link https://adodb.org Project's web site and documentation
* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
*
* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
* any later version. This means you can use it in proprietary products.
* See the LICENSE.md file distributed with this source code for details.
* @license BSD-3-Clause
* @license LGPL-2.1-or-later
*
* @copyright 2000-2013 John Lim
* @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
* @author John Lim
* @author George Fourlanos <fou@infomap.gr>
*/
// 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 (2000-2049), and years over 50 as years in
the 20th century (1950-1999). 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: return OCI_D_FILE;
case OCI_B_CFILEE: return OCI_D_FILE;
case OCI_B_CLOB: return OCI_D_LOB;
case OCI_B_BLOB: return OCI_D_LOB;
case OCI_B_ROWID: return OCI_D_ROWID;
}
return false;
}
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'; // requires oracle 9 or later, otherwise use 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 $metaTablesSQL = "select table_name,table_type from cat where table_type in ('TABLE','VIEW') and table_name not like 'BIN\$%'"; // bin$ tables are recycle bin tables
var $metaColumnsSQL = "select cname,coltype,width, SCALE, PRECISION, NULLS, DEFAULTVAL from col where tname='%s' order by colno"; //changed by smondino@users.sourceforge. net
var $metaColumnsSQL2 = "select column_name,data_type,data_length, data_scale, data_precision,
case when nullable = 'Y' then 'NULL'
else 'NOT NULL' end as nulls,
data_default from all_tab_cols
where owner='%s' and table_name='%s' order by column_id"; // when there is a schema
var $_bindInputArray = true;
var $hasGenID = true;
var $_genIDSQL = "SELECT (%s.nextval) FROM DUAL";
var $_genSeqSQL = "
DECLARE
PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
execute immediate 'CREATE SEQUENCE %s START WITH %s';
END;
";
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 $_nestedSQL = true;
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 = 1000; // 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 $dateformat = 'YYYY-MM-DD'; // DBDate format
var $useDBDateFormatForTextInput=false;
var $datetime = false; // MetaType('DATE') returns 'D' (datetime==false) or 'T' (datetime == true)
var $_refLOBs = array();
// var $ansiOuter = true; // if oracle9
/*
* Legacy compatibility for sequence names for emulated auto-increments
*/
public $useCompactAutoIncrements = false;
/*
* Defines the schema name for emulated auto-increment columns
*/
public $schema = false;
/*
* Defines the prefix for emulated auto-increment columns
*/
public $seqPrefix = 'SEQ_';
/* function MetaColumns($table, $normalize=true) added by smondino@users.sourceforge.net*/
function MetaColumns($table, $normalize=true)
{
global $ADODB_FETCH_MODE;
$schema = '';
$this->_findschema($table, $schema);
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== false) {
$savem = $this->SetFetchMode(false);
}
if ($schema){
$rs = $this->Execute(sprintf($this->metaColumnsSQL2, strtoupper($schema), strtoupper($table)));
}
else {
$rs = $this->Execute(sprintf($this->metaColumnsSQL,strtoupper($table)));
}
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
if (!$rs) {
return false;
}
$retarr = array();
while (!$rs->EOF) {
$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') {
if ($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();
}
$rs->Close();
if (empty($retarr)) {
return false;
}
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
* $conn->Connect($tnsname,'scott','tiger');
* $conn->Connect(false,'scott','tiger',$tnsname);
*
* c. Server + service name
* $conn->Connect($serveraddress,'scott,'tiger',$service_name);
*
* d. Server + SID
* $conn->connectSID = true;
* $conn->Connect($serveraddress,'scott,'tiger',$SID);
*
* @param string|false $argHostname DB server hostname or TNS name
* @param string $argUsername
* @param string $argPassword
* @param string $argDatabasename Service name, SID (defaults to null)
* @param int $mode Connection mode, defaults to 0
* (0 = non-persistent, 1 = persistent, 2 = force new connection)
*
* @return bool
*/
function _connect($argHostname, $argUsername, $argPassword, $argDatabasename=null, $mode=0)
{
if (!function_exists('oci_pconnect')) {
return null;
}
#adodb_backtrace();
$this->_errorMsg = false;
$this->_errorCode = false;
if($argHostname) { // added by Jorma Tuomainen <jorma.tuomainen@ppoy.fi>
if (empty($argDatabasename)) {
$argDatabasename = $argHostname;
}
else {
if(strpos($argHostname,":")) {
$argHostinfo=explode(":",$argHostname);
$argHostname=$argHostinfo[0];
$argHostport=$argHostinfo[1];
} else {
$argHostport = empty($this->port)? "1521" : $this->port;
}
if (strncasecmp($argDatabasename,'SID=',4) == 0) {
$argDatabasename = substr($argDatabasename,4);
$this->connectSID = true;
}
if ($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)
? oci_pconnect($argUsername,$argPassword, $argDatabasename,$this->charSet)
: oci_pconnect($argUsername,$argPassword, $argDatabasename);
if ($this->_connectionID && $this->autoRollback) {
oci_rollback($this->_connectionID);
}
} else if ($mode==2) {
$this->_connectionID = ($this->charSet)
? oci_new_connect($argUsername,$argPassword, $argDatabasename,$this->charSet)
: oci_new_connect($argUsername,$argPassword, $argDatabasename);
} else {
$this->_connectionID = ($this->charSet)
? oci_connect($argUsername,$argPassword, $argDatabasename,$this->charSet)
: oci_connect($argUsername,$argPassword, $argDatabasename);
}
if (!$this->_connectionID) {
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
// $vers = oci_server_version($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');
$arr['description'] = @oci_server_version($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 @oci_num_rows($this->_stmt);
}
return 0;
}
function IfNull( $field, $ifNull )
{
return " NVL($field, $ifNull) "; // if Oracle
}
protected function _insertID($table = '', $column = '')
{
if (!$this->seqField)
return false;
if ($this->schema)
{
$t = strpos($table,'.');
if ($t !== false)
$tab = substr($table,$t+1);
else
$tab = $table;
if ($this->useCompactAutoIncrements)
$tab = sprintf('%u',crc32(strtolower($tab)));
$seqname = $this->schema.'.'.$this->seqPrefix.$tab;
}
else
{
if ($this->useCompactAutoIncrements)
$table = sprintf('%u',crc32(strtolower($table)));
$seqname = $this->seqPrefix.$table;
}
if (strlen($seqname) > 30)
/*
* We cannot successfully identify the sequence
*/
return false;
return $this->getOne("SELECT $seqname.currval FROM dual");
}
// format and return date string in database date format
function DBDate($d,$isfld=false)
{
if (empty($d) && $d !== 0) {
return 'null';
}
if ($isfld) {
$d = _adodb_safedate($d);
return 'TO_DATE('.$d.",'".$this->dateformat."')";
}
if (is_string($d)) {
$d = ADORecordSet::UnixDate($d);
}
if (is_object($d)) {
$ds = $d->format($this->fmtDate);
}
else {
$ds = adodb_date($this->fmtDate,$d);
}
return "TO_DATE(".$ds.",'".$this->dateformat."')";
}
function BindDate($d)
{
$d = ADOConnection::DBDate($d);
if (strncmp($d, "'", 1)) {
return $d;
}
return substr($d, 1, strlen($d)-2);
}
function BindTimeStamp($ts)
{
if (empty($ts) && $ts !== 0) {
return 'null';
}
if (is_string($ts)) {
$ts = ADORecordSet::UnixTimeStamp($ts);
}
if (is_object($ts)) {
$tss = $ts->format("'Y-m-d H:i:s'");
}
else {
$tss = adodb_date("'Y-m-d H:i:s'",$ts);
}
return $tss;
}
// format and return date string in database timestamp format
function DBTimeStamp($ts,$isfld=false)
{
if (empty($ts) && $ts !== 0) {
return 'null';
}
if ($isfld) {
return 'TO_DATE(substr('.$ts.",1,19),'RRRR-MM-DD, HH24:MI:SS')";
}
if (is_string($ts)) {
$ts = ADORecordSet::UnixTimeStamp($ts);
}
if (is_object($ts)) {
$tss = $ts->format("'Y-m-d H:i:s'");
}
else {
$tss = date("'Y-m-d H:i:s'",$ts);
}
return 'TO_DATE('.$tss.",'RRRR-MM-DD, HH24:MI:SS')";
}
function RowLock($tables,$where,$col='1 as adodbignore')
{
if ($this->autoCommit) {
$this->BeginTrans();
}
return $this->GetOne("select $col 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 upper(table_name) like $mask";
}
$ret = ADOConnection::MetaTables($ttype,$showSchema);
if ($mask) {
$this->metaTablesSQL = $save;
}
return $ret;
}
// Mark Newnham
function MetaIndexes ($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);
}
// get index details
$table = strtoupper($table);
// get Primary index
$primary_key = '';
$rs = $this->Execute(sprintf("SELECT * FROM ALL_CONSTRAINTS WHERE UPPER(TABLE_NAME)='%s' AND CONSTRAINT_TYPE='P'",$table));
if (!is_object($rs)) {
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
return false;
}
if ($row = $rs->FetchRow()) {
$primary_key = $row[1]; //constraint_name
}
if ($primary==TRUE && $primary_key=='') {
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
return false; //There is no primary key
}
$rs = $this->Execute(sprintf("SELECT ALL_INDEXES.INDEX_NAME, ALL_INDEXES.UNIQUENESS, ALL_IND_COLUMNS.COLUMN_POSITION, ALL_IND_COLUMNS.COLUMN_NAME FROM ALL_INDEXES,ALL_IND_COLUMNS WHERE UPPER(ALL_INDEXES.TABLE_NAME)='%s' AND ALL_IND_COLUMNS.INDEX_NAME=ALL_INDEXES.INDEX_NAME",$table));
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 = $rs->FetchRow()) {
if ($primary && $row[0] != $primary_key) {
continue;
}
if (!isset($indexes[$row[0]])) {
$indexes[$row[0]] = array(
'unique' => ($row[1] == 'UNIQUE'),
'columns' => array()
);
}
$indexes[$row[0]]['columns'][$row[2] - 1] = $row[3];
}
// sort columns by order in the index
foreach ( array_keys ($indexes) as $index ) {
ksort ($indexes[$index]['columns']);
}
if (isset($savem)) {
$this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
}
return $indexes;
}
function BeginTrans()
{
if ($this->transOff) {
return true;
}
$this->transCnt += 1;
$this->autoCommit = false;
$this->_commit = OCI_DEFAULT;
if ($this->_transmode) {
$ok = $this->Execute("SET TRANSACTION ".$this->_transmode);
}
else {
$ok = true;
}
return $ok ? true : false;
}
function CommitTrans($ok=true)
{
if ($this->transOff) {
return true;
}
if (!$ok) {
return $this->RollbackTrans();
}
if ($this->transCnt) {
$this->transCnt -= 1;
}
$ret = oci_commit($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;
}
$ret = oci_rollback($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)) {
$arr = @oci_error($this->_stmt);
}
if (empty($arr)) {
if (is_resource($this->_connectionID)) {
$arr = @oci_error($this->_connectionID);
}
else {
$arr = @oci_error();
}
if ($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)) {
$arr = @oci_error($this->_stmt);
}
if (empty($arr)) {
$arr = @oci_error($this->_connectionID);
if ($arr == false) {
$arr = @oci_error();
}
if ($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;
case 'w':
$s .= 'D';
break;
case 'l':
$s .= 'DAY';
break;
case 'W':
$s .= 'WW';
break;
default:
// handle escape characters...
if ($ch == '\\') {
$i++;
$ch = substr($fmt,$i,1);
}
if (strpos('-/.:;, ',$ch) !== false) {
$s .= $ch;
}
else {
$s .= '"'.$ch.'"';
}
}
}
return $s. "')";
}
function GetRandRow($sql, $arr = false)
{
$sql = "SELECT * FROM ($sql ORDER BY dbms_random.value) WHERE rownum = 1";
return $this->GetRow($sql,$arr);
}
/**
* 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 $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.
*
* Note: FIRST_ROWS hinting is only used if $sql is a string; when
* processing a prepared statement's handle, no hinting is performed.
*/
function SelectLimit($sql,$nrows=-1,$offset=-1, $inputarr=false,$secs2cache=0)
{
$nrows = (int) $nrows;
$offset = (int) $offset;
// Since the methods used to limit the number of returned rows rely
// on modifying the provided SQL query, we can't work with prepared
// statements so we just extract the SQL string.
if(is_array($sql)) {
$sql = $sql[0];
}
// seems that oracle only supports 1 hint comment in 8i
if ($this->firstrows) {
if ($nrows > 500 && $nrows < 1000) {
$hint = "FIRST_ROWS($nrows)";
}
else {
$hint = 'FIRST_ROWS';
}
if (strpos($sql,'/*+') !== false) {
$sql = str_replace('/*+ ',"/*+$hint ",$sql);
}
else {
$sql = preg_replace('/^[ \t\n]*select/i',"SELECT /*+$hint*/",$sql);
}
$hint = "/*+ $hint */";
} else {
$hint = '';
}
if ($offset == -1 || ($offset < $this->selectOffsetAlg1 && 0 < $nrows && $nrows < 1000)) {
if ($nrows > 0) {
if ($offset > 0) {
$nrows += $offset;
}
$sql = "select * from (".$sql.") where rownum <= :adodb_offset";
// If non-bound statement, $inputarr is false
if (!$inputarr) {
$inputarr = array();
}
$inputarr['adodb_offset'] = $nrows;
$nrows = -1;
}
// note that $nrows = 0 still has to work ==> no rows returned
return ADOConnection::SelectLimit($sql, $nrows, $offset, $inputarr, $secs2cache);
} 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";
if (! $stmt_arr = $this->Prepare($q_fields)) {
return false;
}
$stmt = $stmt_arr[1];
if (is_array($inputarr)) {
foreach($inputarr as $k => $v) {
$i=0;
if ($this->databaseType == 'oci8po') {
$bv_name = ":".$i++;
} else {
$bv_name = ":".$k;
}
if (is_array($v)) {
// suggested by g.giunta@libero.
if (sizeof($v) == 2) {
oci_bind_by_name($stmt,$bv_name,$inputarr[$k][0],$v[1]);
}
else {
oci_bind_by_name($stmt,$bv_name,$inputarr[$k][0],$v[1],$v[2]);
}
} else {
$len = -1;
if ($v === ' ') {
$len = 1;
}
if (isset($bindarr)) { // is prepared sql, so no need to oci_bind_by_name again
$bindarr[$k] = $v;
} else { // dynamic sql, so rebind every time
oci_bind_by_name($stmt,$bv_name,$inputarr[$k],$len);
}
}
}
}
if (!oci_execute($stmt, OCI_DEFAULT)) {
oci_free_statement($stmt);
return false;
}
$ncols = oci_num_fields($stmt);
for ( $i = 1; $i <= $ncols; $i++ ) {
$cols[] = '"'.oci_field_name($stmt, $i).'"';
}
$result = false;
oci_free_statement($stmt);
$fields = implode(',', $cols);
if ($nrows <= 0) {
$nrows = 999999999999;
}
else {
$nrows += $offset;
}
$offset += 1; // in Oracle rownum starts at 1
$sql = "SELECT $hint $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";
$desc = oci_new_descriptor($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 $val in a blob
*/
function UpdateBlobFile($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";
$desc = oci_new_descriptor($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;
}
/**
* Execute SQL
*
* @param string|array $sql SQL statement to execute, or possibly an array holding
* prepared statement ($sql[0] will hold sql text).
* @param array|false $inputarr holds the input data to bind to.
* Null elements will be set to null.
*
* @return ADORecordSet|false
*/
function Execute($sql,$inputarr=false)
{
if ($this->fnExecute) {
$fn = $this->fnExecute;
$ret = $fn($this,$sql,$inputarr);
if (isset($ret)) {
return $ret;
}
}
if ($inputarr !== false) {
if (!is_array($inputarr)) {
$inputarr = array($inputarr);
}
$element0 = reset($inputarr);
$array2d = $this->bulkBind && is_array($element0) && !is_object(reset($element0));
# see PHPLens Issue No: 18786
if ($array2d || !$this->_bindInputArray) {
# is_object check because oci8 descriptors can be passed in
if ($array2d && $this->_bindInputArray) {
if (is_string($sql)) {
$stmt = $this->Prepare($sql);
} else {
$stmt = $sql;
}
foreach($inputarr as $arr) {
$ret = $this->_Execute($stmt,$arr);
if (!$ret) {
return $ret;
}
}
return $ret;
} else {
$sqlarr = explode(':', $sql);
$sql = '';
$lastnomatch = -2;
#var_dump($sqlarr);echo "<hr>";var_dump($inputarr);echo"<hr>";
foreach($sqlarr as $k => $str) {
if ($k == 0) {
$sql = $str;
continue;
}
// we need $lastnomatch because of the following datetime,
// eg. '10:10:01', which causes code to think that there is bind param :10 and :1
$ok = preg_match('/^([0-9]*)/', $str, $arr);
if (!$ok) {
$sql .= $str;
} else {
$at = $arr[1];
if (isset($inputarr[$at]) || is_null($inputarr[$at])) {
if ((strlen($at) == strlen($str) && $k < sizeof($arr)-1)) {
$sql .= ':'.$str;
$lastnomatch = $k;
} else if ($lastnomatch == $k-1) {
$sql .= ':'.$str;
} else {
if (is_null($inputarr[$at])) {
$sql .= 'null';
}
else {
$sql .= $this->qstr($inputarr[$at]);
}
$sql .= substr($str, strlen($at));
}
} else {
$sql .= ':'.$str;
}
}
}
$inputarr = false;
}
}
$ret = $this->_Execute($sql,$inputarr);
} else {
$ret = $this->_Execute($sql,false);
}
return $ret;
}
/*
* Example of usage:
* $stmt = $this->Prepare('insert into emp (empno, ename) values (:empno, :ename)');
*/
function Prepare($sql,$cursor=false)
{
static $BINDNUM = 0;
$stmt = oci_parse($this->_connectionID,$sql);
if (!$stmt) {
$this->_errorMsg = false;
$this->_errorCode = false;
$arr = @oci_error($this->_connectionID);
if ($arr === false) {
return false;
}
$this->_errorMsg = $arr['message'];
$this->_errorCode = $arr['code'];
return false;
}
$BINDNUM += 1;
$sttype = @oci_statement_type($stmt);
if ($sttype == 'BEGIN' || $sttype == 'DECLARE') {
return array($sql,$stmt,0,$BINDNUM, ($cursor) ? oci_new_cursor($this->_connectionID) : false);
}
return array($sql,$stmt,0,$BINDNUM);
}
function releaseStatement(&$stmt)
{
if (is_array($stmt)
&& isset($stmt[1])
&& is_resource($stmt[1])
&& oci_free_statement($stmt[1])
) {
// Clearing the resource to avoid it being of type Unknown
$stmt[1] = null;
return true;
}
// Not a valid prepared statement
return false;
}
/*
Call an oracle stored procedure and returns a cursor variable as a recordset.
Concept by Robert Tuttle robert@ud.com
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 oci_new_cursor
if (is_array($stmt) && sizeof($stmt) >= 5) {
$hasref = true;
$ignoreCur = false;
$this->Parameter($stmt, $ignoreCur, $cursorName, false, -1, OCI_B_CURSOR);
if ($params) {
foreach($params as $k => $v) {
$this->Parameter($stmt,$params[$k], $k);
}
}
} else
$hasref = false;
$rs = $this->Execute($stmt);
if ($rs) {
if ($rs->databaseType == 'array') {
oci_free_cursor($stmt[4]);
}
elseif ($hasref) {
$rs->_refcursor = $stmt[4];
}
}
return $rs;
}
/**
* Bind a variable -- very, very fast for executing repeated statements in oracle.
*
* Better than using
* for ($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 to insert 1000 records, test table has 3 cols, and 1 index.
* - Time 0.6081s (1644.60 inserts/sec) with direct oci_parse/oci_execute
* - 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 oci_bind_by_name,
* 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($stmt) >= 5) {
return oci_bind_by_name($stmt[1],":".$name,$stmt[4],$size,$type);
}
if ($name == false) {
if ($type !== false) {
$rez = oci_bind_by_name($stmt[1],":".$stmt[2],$var,$size,$type);
}
else {
$rez = oci_bind_by_name($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'] = oci_new_descriptor($this->_connectionID, oci_lob_desc($type));
$this->_refLOBs[$numlob]['TYPE'] = $isOutput;
$tmp = $this->_refLOBs[$numlob]['LOB'];
$rez = oci_bind_by_name($stmt[1], ":".$name, $tmp, -1, $type);
if ($this->debug) {
ADOConnection::outp("<b>Bind</b>: descriptor has been allocated, var (".$name.") binded");
}
// if type is input then write data to lob now
if ($isOutput == false) {
$var = $this->BlobEncode($var);
$tmp->WriteTemporary($var);
$this->_refLOBs[$numlob]['VAR'] = &$var;
if ($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) {
$rez = oci_bind_by_name($stmt[1],":".$name,$var,$size,$type);
}
else {
$rez = oci_bind_by_name($stmt[1],":".$name,$var,$size); // +1 byte for null terminator
}
}
return $rez;
}
function Param($name,$type='C')
{
return ':'.$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 {@see Prepare()} or {@see PrepareSP()}.
* @param $var PHP variable to bind to
* @param $name Name of stored procedure variable name to bind to.
* @param bool $isOutput Indicates direction of parameter 0/false=IN 1=OUT 2= IN/OUT. This is ignored in oci8.
* @param int $maxLen Holds an maximum length of the variable.
* @param mixed $type The data type of $var. Legal values depend on driver.
*
* @link http://php.net/oci_bind_by_name
*/
function Parameter(&$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=false)
{
if (is_array($sql)) { // is prepared sql
$stmt = $sql[1];
// we try to bind to permanent array, so that oci_bind_by_name is persistent
// and carried out once only - note that max array element size is 4000 chars
if (is_array($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] = $v;
oci_bind_by_name($stmt,":$k",$bindarr[$k],is_string($v) && strlen($v)>4000 ? -1 : 4000);
}
$this->_bind[$bindpos] = $bindarr;
}
}
} else {
$stmt=oci_parse($this->_connectionID,$sql);
}
$this->_stmt = $stmt;
if (!$stmt) {
return false;
}
if (defined('ADODB_PREFETCH_ROWS')) {
@oci_set_prefetch($stmt,ADODB_PREFETCH_ROWS);
}
if (is_array($inputarr)) {
foreach($inputarr as $k => $v) {
if (is_array($v)) {
// suggested by g.giunta@libero.
if (sizeof($v) == 2) {
oci_bind_by_name($stmt,":$k",$inputarr[$k][0],$v[1]);
}
else {
oci_bind_by_name($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]);
}
if ($this->debug==99) {
if (is_object($v[0])) {
echo "name=:$k",' len='.$v[1],' type='.$v[2],'<br>';
}
else {
echo "name=:$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 oci_bind_by_name again
$bindarr[$k] = $v;
} else { // dynamic sql, so rebind every time
oci_bind_by_name($stmt,":$k",$inputarr[$k],$len);
}
}
}
}
$this->_errorMsg = false;
$this->_errorCode = false;
if (oci_execute($stmt,$this->_commit)) {
if (count($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;
} else {
$this->_refLOBs[$key]['LOB']->save($this->_refLOBs[$key]['VAR']);
$this -> _refLOBs[$key]['LOB']->free();
unset($this -> _refLOBs[$key]);
if ($this->debug) {
ADOConnection::outp("<b>IN LOB</b>: LOB has been saved. <br>");
}
}
}
}
switch (@oci_statement_type($stmt)) {
case "SELECT":
return $stmt;
case 'DECLARE':
case "BEGIN":
if (is_array($sql) && !empty($sql[4])) {
$cursor = $sql[4];
if (is_resource($cursor)) {
$ok = oci_execute($cursor);
return $cursor;
}
return $stmt;
} else {
if (is_resource($stmt)) {
oci_free_statement($stmt);
return true;
}
return $stmt;
}
break;
default :
return true;
}
}
return false;
}
// From Oracle Whitepaper: PHP Scalability and High Availability
function IsConnectionError($err)
{
switch($err) {
case 378: /* buffer pool param incorrect */
case 602: /* core dump */
case 603: /* fatal error */
case 609: /* attach failed */
case 1012: /* not logged in */
case 1033: /* init or shutdown in progress */
case 1043: /* Oracle not available */
case 1089: /* immediate shutdown in progress */
case 1090: /* shutdown in progress */
case 1092: /* instance terminated */
case 3113: /* disconnect */
case 3114: /* not connected */
case 3122: /* closing window */
case 3135: /* lost contact */
case 12153: /* TNS: not connected */
case 27146: /* fatal or instance terminated */
case 28511: /* Lost RPC */
return true;
}
return false;
}
// returns true or false
function _close()
{
if (!$this->_connectionID) {
return;
}
if (!$this->autoCommit) {
oci_rollback($this->_connectionID);
}
if (count($this->_refLOBs) > 0) {
foreach ($this ->_refLOBs as $key => $value) {
$this->_refLOBs[$key]['LOB']->free();
unset($this->_refLOBs[$key]);
}
}
oci_close($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;
}
/**
* Returns a list of Foreign Keys associated with a specific table.
*
* @param string $table
* @param string $owner
* @param bool $upper discarded
* @param bool $associative discarded
*
* @return string[]|false An array where keys are tables, and values are foreign keys;
* false if no foreign keys could be found.
*/
public function metaForeignKeys($table, $owner = '', $upper = false, $associative = 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;
}
/**
* Correctly quotes a string so that all strings are escaped.
* We prefix and append to the string single-quotes.
* An example is $db->qstr("Don't bother");
*
* @param string $s The string to quote
* @param bool $magic_quotes This param is not used since 5.21.0.
* It remains for backwards compatibility.
*
* @return string Quoted string to be sent back to database
*
* @noinspection PhpUnusedParameterInspection
*/
function qStr($s, $magic_quotes=false)
{
if ($this->noNullStrings && strlen($s) == 0) {
$s = ' ';
}
if ($this->replaceQuote[0] == '\\'){
$s = str_replace('\\','\\\\',$s);
}
return "'" . str_replace("'", $this->replaceQuote, $s) . "'";
}
}
/*--------------------------------------------------------------------------------------
Class Name: Recordset
--------------------------------------------------------------------------------------*/
class ADORecordset_oci8 extends ADORecordSet {
var $databaseType = 'oci8';
var $bind=false;
var $_fieldobjs;
function __construct($queryID,$mode=false)
{
if ($mode === false) {
global $ADODB_FETCH_MODE;
$mode = $ADODB_FETCH_MODE;
}
switch ($mode) {
case ADODB_FETCH_ASSOC:
$this->fetchMode = OCI_ASSOC;
break;
case ADODB_FETCH_DEFAULT:
case ADODB_FETCH_BOTH:
$this->fetchMode = OCI_NUM + OCI_ASSOC;
break;
case ADODB_FETCH_NUM:
default:
$this->fetchMode = OCI_NUM;
break;
}
$this->fetchMode += OCI_RETURN_NULLS + OCI_RETURN_LOBS;
$this->adodbFetchMode = $mode;
$this->_queryID = $queryID;
}
/**
* Overrides the core destructor method as that causes problems here
*
* @return void
*/
function __destruct() {}
function Init()
{
if ($this->_inited) {
return;
}
$this->_inited = true;
if ($this->_queryID) {
$this->_currentRow = 0;
@$this->_initrs();
if ($this->_numOfFields) {
$this->EOF = !$this->_fetch();
}
else $this->EOF = true;
/*
// based on idea by Gaetano Giunta to detect unusual oracle errors
// see PHPLens Issue No: 6771
$err = oci_error($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;
$this->_numOfFields = oci_num_fields($this->_queryID);
if ($this->_numOfFields>0) {
$this->_fieldobjs = array();
$max = $this->_numOfFields;
for ($i=0;$i<$max; $i++) $this->_fieldobjs[] = $this->_FetchField($i);
}
}
/**
* 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
*
* @return object containing field information
*/
function _FetchField($fieldOffset = -1)
{
$fld = new ADOFieldObject;
$fieldOffset += 1;
$fld->name =oci_field_name($this->_queryID, $fieldOffset);
if (ADODB_ASSOC_CASE == ADODB_ASSOC_CASE_LOWER) {
$fld->name = strtolower($fld->name);
}
$fld->type = oci_field_type($this->_queryID, $fieldOffset);
$fld->max_length = oci_field_size($this->_queryID, $fieldOffset);
switch($fld->type) {
case 'NUMBER':
$p = oci_field_precision($this->_queryID, $fieldOffset);
$sc = oci_field_scale($this->_queryID, $fieldOffset);
if ($p != 0 && $sc == 0) {
$fld->type = 'INT';
}
$fld->scale = $p;
break;
case 'CLOB':
case 'NCLOB':
case 'BLOB':
$fld->max_length = -1;
break;
}
return $fld;
}
/* For some reason, oci_field_name fails when called after _initrs() so we cache it */
function FetchField($fieldOffset = -1)
{
return $this->_fieldobjs[$fieldOffset];
}
function MoveNext()
{
if ($this->fields = @oci_fetch_array($this->_queryID,$this->fetchMode)) {
$this->_currentRow += 1;
$this->_updatefields();
return true;
}
if (!$this->EOF) {
$this->_currentRow += 1;
$this->EOF = true;
}
return false;
}
// Optimize SelectLimit() by using oci_fetch()
function GetArrayLimit($nrows,$offset=-1)
{
if ($offset <= 0) {
$arr = $this->GetArray($nrows);
return $arr;
}
$arr = array();
for ($i=1; $i < $offset; $i++) {
if (!@oci_fetch($this->_queryID)) {
return $arr;
}
}
if (!$this->fields = @oci_fetch_array($this->_queryID,$this->fetchMode)) {
return $arr;
}
$this->_updatefields();
$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()
{
$this->fields = @oci_fetch_array($this->_queryID,$this->fetchMode);
$this->_updatefields();
return $this->fields;
}
/**
* close() only needs to be called if you are worried about using too much
* memory while your script is running. All associated result memory for the
* specified result identifier will automatically be freed.
*/
function _close()
{
if ($this->connection->_stmt === $this->_queryID) {
$this->connection->_stmt = false;
}
if (!empty($this->_refcursor)) {
oci_free_cursor($this->_refcursor);
$this->_refcursor = false;
}
if (is_resource($this->_queryID))
@oci_free_statement($this->_queryID);
$this->_queryID = false;
}
/**
* not the fastest implementation - quick and dirty - jlim
* for best performance, use the actual $rs->MetaType().
*
* @param mixed $t
* @param int $len [optional] Length of blobsize
* @param bool $fieldobj [optional][discarded]
* @return str The metatype of the field
*/
function MetaType($t, $len=-1, $fieldobj=false)
{
if (is_object($t)) {
$fieldobj = $t;
$t = $fieldobj->type;
$len = $fieldobj->max_length;
}
$t = strtoupper($t);
if (array_key_exists($t,$this->connection->customActualTypes))
return $this->connection->customActualTypes[$t];
switch ($t) {
case 'VARCHAR':
case 'VARCHAR2':
case 'CHAR':
case 'VARBINARY':
case 'BINARY':
case 'NCHAR':
case 'NVARCHAR':
case 'NVARCHAR2':
if ($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 ADODB_DEFAULT_METATYPE;
}
}
}
class ADORecordSet_ext_oci8 extends ADORecordSet_oci8 {
function MoveNext()
{
return adodb_movenext($this);
}
}
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