Source for file Oracle.php
Documentation is available at Oracle.php
* $Id: Oracle.php 1917 2007-07-01 11:27:45Z zYne $
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
* Doctrine_Expression_Sqlite
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @version $Revision: 1917 $
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* Returns a series of strings concatinated
* concat() accepts an arbitrary number of parameters. Each parameter
* must contain an expression
* @param string $arg1, $arg2 ... $argN strings that will be concatinated.
return join(' || ' , $args);
* return string to call a function to get a substring inside an SQL statement
* Note: Not SQL92, but common functionality.
* @param string $value an sql string literal or column name/alias
* @param integer $position where to start the substring portion
* @param integer $length the substring portion length
* @return string SQL substring function with given parameters
public function substring($value, $position, $length =
null)
return "SUBSTR($value, $position, $length)";
return "SUBSTR($value, $position)";
* Return string to call a variable with the current timestamp inside an SQL statement
* There are three special variables for current date and time:
* - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
* - CURRENT_DATE (date, DATE type)
* - CURRENT_TIME (time, TIME type)
* @return string to call a variable with the current timestamp
public function now($type =
'timestamp')
return 'TO_CHAR(CURRENT_TIMESTAMP, \'YYYY-MM-DD HH24:MI:SS\')';
* @return string an oracle SQL string that generates a float between 0 and 1
return 'dbms_random.value';
* Returns global unique identifier
* @return string to get global unique identifier