数据库查询死锁语句 sql死锁查询语句
怎样查询引起死锁的sql语句?elect 0 ,blocked from (select * from sysprocesses where blocked>0...
怎样查询引起死锁的sql语句?elect 0 ,blocked from (select * from sysprocesses where blocked>0...
mysql死锁出现的原因?MySQL有三级锁:页级、表级和行级。表级锁:成本低,锁定速度快;无死锁;锁粒度大,锁冲突概率最高,并发性最低。行级锁:成本高、锁定慢、死锁、...
怎样查询引起死锁的sql语句?elect 0 ,blocked from (select * from sysprocesses where blocked>0...
mysql优化教程?1. 优化SQL语句、索引和表结构。2. 打开查询缓存时,查询缓存缓存选择查询及其结果数据集。当执行同一个select查询时,MySQL将直接从内存...
查询mysql哪些表正在被锁状态?1. 检查表是否被锁定:(1)直接在MySQL命令行上执行:show engine InnoDB statusg。(2) 查看导致死锁...