【转载】MySQL 临时表

删除MySQL 临时表

默认情况下，当你断开与数据库的连接后，临时表就会自动被销毁。当然你也可以在当前MySQL会话使用 DROP TABLE 命令来手动删除临时表。

以下是手动删除临时表的实例：

mysql> CREATE TEMPORARY TABLE SalesSummary (    -> product_name VARCHAR(50) NOT NULL    -> , total_sales DECIMAL(12,2) NOT NULL DEFAULT 0.00    -> , avg_unit_price DECIMAL(7,2) NOT NULL DEFAULT 0.00    -> , total_units_sold INT UNSIGNED NOT NULL DEFAULT 0);Query OK, 0 rows affected (0.00 sec)mysql> INSERT INTO SalesSummary    -> (product_name, total_sales, avg_unit_price, total_units_sold)    -> VALUES    -> ('cucumber', 100.25, 90, 2);mysql> SELECT * FROM SalesSummary;+--------------+-------------+----------------+------------------+| product_name | total_sales | avg_unit_price | total_units_sold |+--------------+-------------+----------------+------------------+| cucumber     |      100.25 |          90.00 |                2 |+--------------+-------------+----------------+------------------+1 row in set (0.00 sec)mysql> DROP TABLE SalesSummary;mysql>  SELECT * FROM SalesSummary;ERROR 1146: Table 'RUNOOB.SalesSummary' doesn't exist