mysql中int、bigint、smallint 和 tinyint的区别与长度
通过创建一张表，来看看 mysql 中 int bigint smallint 和 tinyint的区别与长度 1、在mysql 命令行创建如下表 CREATE TABLE `test_int_1` ( `int_id` int NOT NULL, `bigint_id` bigint DEFAULT NULL, `bigint_25` bigint(25) DEFAULT NULL, `bigint_18` bigint(18) DEFAULT NULL, `int_8` int(8) DEFAULT NULL, `int_3` int(3) DEFAULT NULL, `smallint_id` smallint DEFAULT NULL, `tinyint_id` tinyint DEFAULT NULL, PRIMARY KEY (`int_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 2、desc mysql> desc test_int_1; +-------------+-------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------------+-------------+------+--