查询重复数据mysql

admin4年前 (2022-12-14)mysql1123

select count(id),字段from 表名 group by字段 having count(字段)>1;

返回列表

SELECT CURDATE()当天日期...

SELECT * FROM **** WHERE trim(字段名) REGEXP '[^0-9]'=1...

SELECT product_brand FROM shop_product WHERE LENGTH(product_brand)>...

DELETE t1 FROM invest_year t1, invest_year t2 WHERE t1.pro_id = t2.pro_id AND t1.pro_year = t...

update 表名 SET log_Content = REPLACE(log_Content,'"upload','"/upload')...

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...

汇成软件