MySQL语句一: UPDATE lesson_p set solve_status = 6 where lesson_p_id in (SELECT lp.lesson_p_id FROM `lesson_p` lp LEFT JOIN jx_lesson_p_after jpa ON lp.lesson_p_id = jpa.lesson_p_id where lp.lesson_type = 2 and lp.solve_status = 5 and jpa.mark = 1 and jp…
MySQL触发器更新本表数据异常:Can't update table 'tbl' in stored function/trigger because it 博客分类: 数据库 MySQLJava 如果你在触发器里面对刚刚插入的数据进行了 insert/update, 则出现这个问题.因为会造成循环的调用. Java代码 收藏代码 create trigger test before update on tablename for each row update tablename set N…
mysql left join 右表数据不唯一的情况解决方法 <pre>member 表id username1 fdipzone2 terry member_login_log 表id uid logindate1 1 2015-01-012 2 2015-01-013 1 2015-01-024 2 2015-01-025 2 2015-01-03 select a.id, a.username, b.logindate from member as a left join (select…
MySQL 中国省市区SQL表数据 1.查省SELECT * FROM china WHERE china.Pid=02.查市SELECT * FROM chinaWHERE china.Pid=3300003.查区SELECT * FROM china WHERE china.Pid = 3301004.Mysql脚本 DROP TABLE IF EXISTS `china`; CREATE TABLE `china` ( `Id` INT(11) NOT NULL, `Na…
MYSQL导入CSV格式文件数据执行提示错误(ERROR 1290): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement. [1]分析原因 其实原因很简单,因为在安装MySQL的时候限制了导入与导出的目录权限.只允许在规定的目录下才能导入. 可以通过以下命令查看secure-file-priv当前的值是什么 SHOW VARIABLES LIKE "…