统计mysql字段值的长度

admin5年前 (2021-11-17)mysql1380

SELECT product_brand  FROM shop_product WHERE LENGTH(product_brand)>3;

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mysql> select CONCAT('My', 'S', 'QL');...

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

SELECT CURDATE()当天日期...

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

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

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

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