连接数满
ERROR 1040 (HY000): Too many connections MDL锁等待
show processlist； 用户名密码错误或者权限不足
ERROR 1045 (28000): Access denied for user 'sjj'@'localhost' (using password: YES) 连接数满
ERROR 1040 (HY000): Too many connections MDL锁等待
show processlist； 用户名密码错误或者权限不足
ERROR 1045 (28000): Access denied for user 'sjj'@'localhost' (using password: YES) ![【MySQL数据库】数据库索引事务1.索引2.事务[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)