This state is used for theSHOW PROCESSLISTstate. · Opening tables The thread is trying to open a table.This is should be very fast procedure, unless something prevents opening. Forexample, anALTER TABLEor aLOCK
| Com_show_function_status | 0 | | Com_show_grants | 0 | | Com_show_keys | 0 | | Com_show_master_status | 0 | | Com_show_open_tables | 0 | | Com_show_plugins | 0 | | Com_show_privileges | 0 | | Com_show_procedure_status | 0 | | Com_show_processlist | 6 | | Co...
这个时候也许要想办法去增加内存,让MySQL不但将Index能Cache到内存中,才能够更多地将具体数据Cache到内存中了! 来自MySQL手册: 6.5.5.2. General Thread States The following list describes threadStatevalues that are associated with general query processing and not more specialized activities such as replication....
This state is used for theSHOW PROCESSLISTstate. ·Opening tables The thread is trying to open a table.This is should be very fast procedure, unless something prevents opening. Forexample, anALTER TABLEor aLOCK TABLEstatementcan prevent opening a table until the statement is finished. It is a...
This state is used for theSHOW PROCESSLISTstate. ·Opening tables The thread is trying to open a table.This is should be very fast procedure, unless something prevents opening. Forexample, anALTER TABLEor aLOCK TABLEstatementcan prevent opening a table until the statement is finished. It is ...
SHOW PROCEDURE STATUS LIKE '%list_emp%'; -- 查看存储过程 DROP PROCEDURE list_emp; -- 删除存储过程,目前编写错误的话直接删除重写 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 存储过程定义详情(SHOW PROCEDURE STATUS LIKE '%list_emp%'; -- 查看存储过程): ...
| Com_create_procedure| 0 | | Com_createserver | 0 | |Com_create_table | 0 | | Com_create_trigger | 0 | Com_create_udf | 0 | |Com_create_user | 0 | | _create_view | 0 | | Com_deallocsql | 0 | | Com_delete| 0 | | Com_delete_multi| 0 ...
mysql>show databases; 2. 查询表 代码语言:javascript 代码运行次数:0 运行 AI代码解释 mysql>use test mysql>show tables; 、 3. 查看存储过程和函数 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select`name`from mysql.proc where db='test'and`type`='PROCEDURE';//存储过程select`name`from mys...
SHOWENGINE引擎名 {LOGS|STATUS}-- 显示存储引擎的日志或状态信息 -- 自增起始数 AUTO_INCREMENT = 行数 --数据文件目录 DATADIRECTORY ='目录' -- 索引文件目录 INDEXDIRECTORY ='目录' -- 表注释 COMMENT ='string' -- 分区选项 PARTITIONBY... (详细见手册) ...
新增SHOW ProcessList结果展示会话是否等待线程池调度的功能。 支持通过修改COMMENT中的pack_shift来直接重建列存索引无需提前删除。 优化动态Buffer Pool缩容过程,减少锁冲突。 优化SQL Trace,使得Call procedure时可以正确记录SQL及执行计划。 优化列存宽表的内存开销。 优化列存只读节点的启动速度,支持列存引擎从列存快...