mysql中lock tables与unlock tables
官网：https://dev.mysql.com/doc/refman/5.0/en/lock-tables.html LOCK TABLES tbl_name [[AS] alias] lock_type [, tbl_name [[AS] alias] lock_type ...
原文：MySQL open_tables和opened_tables
How MySQL Opens and Closes Tables：https: dev.mysql.com doc refman . en table cache.html 其他可供参考的文章有： 关于表限制参数的使用：https: dba.stackexchange.com questions mysql table cache and opened tables 关于SHOW OPEN T ...
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