/
adodb-oci8.inc.php
1654 lines (1386 loc) · 45.9 KB
/
adodb-oci8.inc.php
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<?php
/*
version V5.18 3 Sep 2012 (c) 2000-2012 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 <fou@infomap.gr>
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 (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: $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'; // 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 $_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 = 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
function ADODB_oci8()
{
$this->_hasOciFetchStatement = ADODB_PHPVER >= 0x4200;
if (defined('ADODB_EXTENSION')) $this->rsPrefix .= 'ext_';
}
/* function MetaColumns($table, $normalize=true) added by smondino@users.sourceforge.net*/
function MetaColumns($table, $normalize=true)
{
global $ADODB_FETCH_MODE;
$schema = '';
$this->_findschema($table, $schema);
$false = false;
$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;
else
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('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, $ifNull) "; // if Oracle
}
// format and return date string in database date format
function DBDate($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 = '';
$false = false;
$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 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 ($this->firstrows) {
if ($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*/",$sql);
}
if ($offset == -1 || ($offset < $this->selectOffsetAlg1 && 0 < $nrows && $nrows < 1000)) {
if ($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($v) == 2) // suggested by g.giunta@libero.
oci_bind_by_name($stmt,":$k",$inputarr[$k][0],$v[1]);
else
oci_bind_by_name($stmt,":$k",$inputarr[$k][0],$v[1],$v[2]);
} 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);
}
}
}
}
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;
$offset += 1; // in Oracle rownum starts at 1
if ($this->databaseType == 'oci8po') {
$sql = "SELECT /*+ FIRST_ROWS */ $fields FROM".
"(SELECT rownum as adodb_rownum, $fields FROM".
" ($sql) WHERE rownum <= ?".
") WHERE adodb_rownum >= ?";
} else {
$sql = "SELECT /*+ FIRST_ROWS */ $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 $rez;
}
/**
* Execute SQL
*
* @param sql SQL statement to execute, or possibly an array holding prepared statement ($sql[0] will hold sql text)
* @param [inputarr] holds the input data to bind to. Null elements will be set to null.
* @return RecordSet or false
*/
function Execute($sql,$inputarr=false)
{
if ($this->fnExecute) {
$fn = $this->fnExecute;
$ret = $fn($this,$sql,$inputarr);
if (isset($ret)) return $ret;
}
if ($inputarr) {
#if (!is_array($inputarr)) $inputarr = array($inputarr);
$element0 = reset($inputarr);
$array2d = $this->bulkBind && is_array($element0) && !is_object(reset($element0));
# see http://phplens.com/lens/lensforum/msgs.php?id=18786
if ($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);
}
/*
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($stmt[4]);
else if ($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:
** Test table has 3 cols, and 1 index. Test to insert 1000 records
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");
}