① show create table goods;
② CREATE TABLE `goods` (
`goods_id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
`cat_id` smallint(5) unsigned NOT NULL DEFAULT '0',
`goods_sn` varchar(60) NOT NULL DEFAULT '',
`goods_name` varchar(120) NOT NULL DEFAULT '',
`click_count` int(10) unsigned NOT NULL DEFAULT '0',
`goods_number` smallint(5) unsigned NOT NULL DEFAULT '0',
`market_price` decimal(10,2) unsigned NOT NULL DEFAULT '0.00',
`shop_price` decimal(10,2) unsigned NOT NULL DEFAULT '0.00',
`add_time` int(10) unsigned NOT NULL DEFAULT '0',
`is_best` tinyint(1) unsigned NOT NULL DEFAULT '0',
`is_new` tinyint(1) unsigned NOT NULL DEFAULT '0',
`is_hot` tinyint(1) unsigned NOT NULL DEFAULT '0',
PRIMARY KEY (`goods_id`)
)ENGINE=MyISAM DEFAULT CHARSET=utf8;
③ insert into prac.goods
select goods_id,cat_id,goods_sn,goods_name,click_count,goods_number,market_price,shop_price,add_time,is_best,is_new,is_hot from shop.ecs_goods;
④
update shu set num=floor(num/10)*10 where num>20 or num<40;
int(3) char(20) tinyint(1) int(2) date int(8) date char(200)
来源:https://www.cnblogs.com/madtaurus/archive/2012/11/01/2749636.html