MySQL查询产生临时表的分析 官网说明的地址:http://dev.mysql.com/doc/refman/5.5/en/internal-temporary-tables.html 参考:http://blog.csdn.net/chenchaoxing/article/details/25214397 In some cases, the server creates internal temporary tables while processing queries. Such a t…
查看 MySQL 服务器运行的各种状态值: mysql> show global status: 4. 临时表 查看设置: mysql> show variables where Variable_name in ('tmp_table_size', 'max_heap_table_size'); +---------------------+-----------+ | Variable_name | Value | +---------------------+-----------+ |…
1.临时表 DROP PROCEDURE IF EXISTS `P_GetMonitorPeople`; CREATE PROCEDURE P_GetMonitorPeople (IN fgid INT, IN mins INT,in lens INT) BEGIN THEN BEGIN -- 建表tb_temp1 DROP TABLE IF EXISTS tb_temp1; CREATE TEMPORARY TABLE tb_temp1( `Tmp_Id` int UNSIGNED NOT N…
示例SQL: drop temporary table if exists testdb.tmp_test_table; create temporary table testdb.tmp_test_table ( id integer, name varchar(20) ); insert into testdb.tmp_test_table values (1, 'zifeiy'), (2, 'balala'); drop temporary table testdb.tmp_test_ta…