dbforget mysql connection 20171118

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mysql 5.7.10使用dbforget Studio 连接异常

提示：The'INFORMATION_SCHEMA.SESSION_VARIABLES' feature is disabled; see thedocumentation for 'show_compatibility_56'

以下转自：http://blog.csdn.net/rudygao/article/details/50403107

--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)

mysql> select * from information_schema.global_status limit 3;

+-----------------------+----------------+

| VARIABLE_NAME | VARIABLE_VALUE |

+-----------------------+----------------+

| ABORTED_CLIENTS | 0 |

| ABORTED_CONNECTS | 0 |

| BINLOG_CACHE_DISK_USE | 0 |

+-----------------------+----------------+

3 rows in set, 1 warning (0.00 sec)

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