InnoDB INFORMATION_SCHEMA Temporary Table Info Table INNODB_TEMP_TABLE_INFO提供有关InnoDB实例中当前活动的用户创建的InnoDB临时表的信息.它不提供有关优化程序使用的内部InnoDB临时表的信息. mysql> SHOW TABLES FROM INFORMATION_SCHEMA LIKE 'INNODB_TEMP%'; +---------------------------------------------…
Temporary tables are created in tempdb. The name "temporary" is slightly misleading, for even though the tables are instantiated in tempdb and backed by physical disk and are even logged into the transaction log. They act like regular tables i…
drop后的表被放在回收站(user_recyclebin)里,而不是直接删除掉.这样,回收站里的表信息就可以被恢复,或彻底清除. 1.通过查询回收站user_recyclebin获取被删除的表信息,然后使用语句flashback table <user_recyclebin.object_name or user_recyclebin.original_name> to before drop [rename to <new_table_name>]; 将回收站里的表恢复为原名称…