查询重复数据mysql
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...
SELECT CURDATE()当天日期...
SELECT * FROM shop_count WHERE DATE(count_date)=current_date(); SELECT * FROM sho...
update 表名 SET log_Content = REPLACE(log_Content,'"upload','"/upload')...
SELECT * FROM **** WHERE trim(字段名) REGEXP '[^0-9]'=1...
in 或者out 参数 :需要设定长度,否则保存的时候会报错;参数和字段名重名的时候,为了区别字段名,需要在字段前面加入表名创建临时表CREATE TEMPORARY TABLE&...