网站建设衤金手指花总十四,网站如何做营销,网站建设与制作视频教学,网址缩短链接在线工具mysql更新数据限制limitmysql更新时#xff0c;要更新记录中某个区间的数据#xff0c;只能用WHERE条件来限制了#xff0c;用LIMIT只能限制更新多少条#xff01;测试如下#xff1a;UPDATE products SET goods_number goods_number10 ORDER BY goods_id DESC LIMIT 5,1…mysql更新数据限制limitmysql更新时要更新记录中某个区间的数据只能用WHERE条件来限制了用LIMIT只能限制更新多少条测试如下UPDATE products SET goods_number goods_number10 ORDER BY goods_id DESC LIMIT 5,10上面这句测试了是错误的MYSQL的UPDATE语句不能更新限制从第几条到第几条错误提示#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 10 at line 1 只能用下面这样的语句了要么你就用where条件语句来限制了UPDATE products SET goods_number goods_number10 ORDER BY goods_id DESC LIMIT 10 mysql查询默认是不区分大小写的 如1. select * from table_name where a like a% 2. select * from table_name where a like A% 效果是一样的。要让mysql查询区分大小写可以1. select * from table_name where binary a like a% 2. select * from table_name where binary a like A%也可以在建表时加以标识1. create table table_name( 2. a varchar (20) binary 3. ) MySQL表别名、字段别名注意事项 字段别名可加 as ,也可以不加可以加单|双引号也可以不加 表别名可加 as 也可以不加但是一定不能加单|双引号转载于:https://www.cnblogs.com/andydao/p/3160777.html
