Mysql_临时表

CREATE TEMPORARY TABLE test_info (
    test_name VARCHAR(50) NOT NULL,
    test_totail DECIMAL(12,2) NOT NULL DEFAULT 0.00,
    test_avg DECIMAL(7,2) NOT NULL DEFAULT 0,
    test_sum INT UNSIGNED NOT NULL DEFAULT 0
) -- 创建临时表 

 INSERT INTO test_info(test_name,test_totail,test_avg,test_sum) VALUES('啦啦',0.56,32,109) -- 往临时表里面添加信息

 SELECT * FROM test_info

 DROP TEMPORARY TABLE test_info -- 删除临时表