修复 MySQL 中临时表的 TYPE=HEAP 错误?
mysqlmysqli database
较新的 MySQL 版本已弃用 TYPE=HEAP。您可以使用 ENGINE=HEAP 代替 TYPE。以下是语法 −
ENGINE=HEAP;
首先我们创建一个表。这里我们设置了 Engine=HEAP −
mysql> create TEMPORARY table DemoTable -> ( -> StudentId int, -> StudentName varchar(30) -> )Engine = HEAP; Query OK, 0 rows affected (0.00 sec)
让我们检查一下表的定义 −
mysql> show create table DemoTable;
输出
这将产生以下输出 −
+--------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table | +--------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | DemoTable | CREATE TEMPORARY TABLE `DemoTable` (`StudentId` int(11) DEFAULT NULL,`StudentName` varchar(30) COLLATE utf8_unicode_ci DEFAULT NULL) ENGINE=MEMORY DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +--------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
