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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\db\driver;
/**
* MSSQL Database Base Abstraction Layer
*/
abstract class mssql_base extends \phpbb\db\driver\driver
{
/**
* {@inheritDoc}
*/
public function sql_concatenate($expr1, $expr2)
{
return $expr1 . ' + ' . $expr2;
}
/**
* {@inheritDoc}
*/
function sql_escape($msg)
{
return str_replace(array("'", "\0"), array("''", ''), $msg);
}
/**
* {@inheritDoc}
*/
function sql_lower_text($column_name)
{
return "LOWER(SUBSTRING($column_name, 1, DATALENGTH($column_name)))";
}
/**
* Build LIKE expression
* @access private
*/
function _sql_like_expression($expression)
{
return $expression . " ESCAPE '\\'";
}
/**
* Build db-specific query data
* @access private
*/
function _sql_custom_build($stage, $data)
{
return $data;
}
}
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