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<?php
/**
* `UPDATE` statement.
*
* @package SqlParser
* @subpackage Statements
*/
namespace SqlParser\Statements;
use SqlParser\Statement;
use SqlParser\Components\Expression;
use SqlParser\Components\Limit;
use SqlParser\Components\OrderKeyword;
use SqlParser\Components\SetOperation;
use SqlParser\Components\Condition;
/**
* `UPDATE` statement.
*
* UPDATE [LOW_PRIORITY] [IGNORE] table_reference
* SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
* [WHERE where_condition]
* [ORDER BY ...]
* [LIMIT row_count]
*
* or
*
* UPDATE [LOW_PRIORITY] [IGNORE] table_references
* SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
* [WHERE where_condition]
*
* @category Statements
* @package SqlParser
* @subpackage Statements
* @author Dan Ungureanu <udan1107@gmail.com>
* @license http://opensource.org/licenses/GPL-2.0 GNU Public License
*/
class UpdateStatement extends Statement
{
/**
* Options for `UPDATE` statements and their slot ID.
*
* @var array
*/
public static $OPTIONS = array(
'LOW_PRIORITY' => 1,
'IGNORE' => 2,
);
/**
* The clauses of this statement, in order.
*
* @see Statement::$CLAUSES
*
* @var array
*/
public static $CLAUSES = array(
'UPDATE' => array('UPDATE', 2),
// Used for options.
'_OPTIONS' => array('_OPTIONS', 1),
// Used for updated tables.
'_UPDATE' => array('UPDATE', 1),
'SET' => array('SET', 3),
'WHERE' => array('WHERE', 3),
'ORDER BY' => array('ORDER BY', 3),
'LIMIT' => array('LIMIT', 3),
);
/**
* Tables used as sources for this statement.
*
* @var Expression[]
*/
public $tables;
/**
* The updated values.
*
* @var SetOperation[]
*/
public $set;
/**
* Conditions used for filtering each row of the result set.
*
* @var Condition[]
*/
public $where;
/**
* Specifies the order of the rows in the result set.
*
* @var OrderKeyword[]
*/
public $order;
/**
* Conditions used for limiting the size of the result set.
*
* @var Limit
*/
public $limit;
}