One potential drawback of using MySQL is that it can be difficult to use for complex queries. It can also be slow when used with large datasets. MySQL also doesn’t have the customer support that other similar products do because it’s not a commercial product; it’s an open-source prod...
Server version 5.1.72-2 Protocol version 10 Connection Localhost via UNIX socket UNIX socket /var/run/mysqld/mysqld.sock Uptime: 1 hour 22 min 49 sec Threads: 1 Questions: 112138 Slow queries: 1 Opens: 1485 Flush tables: 1 Open tables: 64 Queries per second avg: 22.567.问题2:如何开启...
long_query_time=xxx秒 默认是10秒;设置SQL执行超过此时间的SQL记录下来 log_queries_not_using_indexes=[ON|OFF] 若为ON,则记录所有SQL没有使用索引的SQL语句日志 log_slow_admin_statements=[ON|OFF] 默认为OFF 把管理命令记录到慢查询日志 log_slow_slave_statememts=[ON|OFF] 把主从复制中主的sql在从库...
My favorite question during Interview for people to work as MySQL DBAs or be involved with MySQL Performance in some way is to ask them what should be tuned in MySQL Server straight after installation, assuming it was installed with default settings. 在面试MySQL DBA或者那些打算做MySQL性能优化的...
Once the proposals start flowing in, create a shortlist of top MySQL Developer profiles and interview. Hire the right MySQL Developer for your project from Upwork, the world’s largest work marketplace. At Upwork, we believe talent staffing should be easy. ...
Once the proposals start flowing in, create a shortlist of top MySQL Programmer profiles and interview. Hire the right MySQL Programmer for your project from Upwork, the world’s largest work marketplace. At Upwork, we believe talent staffing should be easy. How much does it cost to hire ...
As a beginner, you must be ready to face such MySQL interview questions and answers for freshers. 54. What query is used to display the top 20 rows? It is one of the top interview questions on MySQL queries that can be asked to experienced professionals. ...
My favorite question during Interview for people to work as MySQL DBAs or be involved with MySQL Performance in some way is to ask them what should be tuned in MySQL Server straight after installation, assuming it was installed with default settings. ...
My favorite question during Interview for people to work as MySQL DBAs or be involved with MySQL Performance in some way is to ask them what should be tuned in MySQL Server straight after installation, assuming it was installed with default settings. ...
查询的开关 SETglobalslow_query_log_file='OAK-slow.log';//修改慢查询日志存放的位置 SETgloballog_queries_not_using_indexes=ON;//没有用到索引的查询就会记录 SETlong_query_time=10;//查询时间超过10s就会记录 2、慢日志查询方式 直接找到对应的,通过记事本查看 time:日志记录的时间 User@Host:...