mysql的自动补齐
设置my.cnf : auto-rehash
mysql>use mysql; #这是关键
SELECT * FROM shop_count WHERE DATE(count_date)=current_date(); SELECT * FROM sho...
update 表名 SET log_Content = REPLACE(log_Content,'"upload','"/upload')...
判断字符串(string)中是否包含另一个字符串(subStr)locate(subStr,string) :函数返回subStr在string中出现的位置实际运用SELECT LOCAT...
select count(id),字段from 表名 group by字段 having count(字段)>1;...
DELETE t1 FROM invest_year t1, invest_year t2 WHERE t1.pro_id = t2.pro_id AND t1.pro_year = t...
是由表格字段ID的数据库类型造成的,smallint最大数值就是65535,修改成int就可以了...