--从mysql5.7.6开始information_schema.global_status已经开始被舍弃,为了兼容性,此时需要打开 show_compatibility_56 mysql> select * from information_schema.global_status limit 3; ERROR 3167 (HY000): The 'INFORMATION_SCHEMA.GLOBAL_STATUS' feature is disabled; see the documentation for 'show_compatibility_56'
--查看show_compatibility_56其值 mysql> show variables like '%show_compatibility_56%'; +-----------------------+-------+ | Variable_name | Value | +-----------------------+-------+ | show_compatibility_56 | OFF | +-----------------------+-------+ 1 row in set (0.01 sec)
--把show_compatibility_56打开 mysql> set global show_compatibility_56=on; Query OK, 0 rows affected (0.00 sec)
mysql> show variables like '%show_compatibility_56%'; +-----------------------+-------+ | Variable_name | Value | +-----------------------+-------+ | show_compatibility_56 | ON | +-----------------------+-------+ 1 row in set (0.00 sec)