MySQL
Navicat Lite做主从数据库时，Navicat 8中的控制台(Console)进行查看slave是运行状态，命令是：show slave status\G;
Navicat总是报语法错误！而在mysql的命令行控制台却能正常执行！~~~看来Navicat还有待进一步加强！
\G或\g是用来干嘛的？以下的代码就可以告诉你了！
1、show slave status; 同：show slave status\g;
+----------------------+-------------+-------------+-------------+--------------
-+------------------+---------------------+----------------------------------+--
-------------+-----------------------+------------------+-------------------+---
--------------+---------------------+--------------------+----------------------
--+-------------------------+-----------------------------+------------+--------
----+--------------+---------------------+-----------------+-----------------+--
--------------+---------------+--------------------+--------------------+-------
-------------+-----------------+-------------------+----------------+-----------
------------+
| Slave_IO_State | Master_Host | Master_User | Master_Port | Connect_Retry
| Master_Log_File | Read_Master_Log_Pos | Relay_Log_File | R
elay_Log_Pos | Relay_Master_Log_File | Slave_IO_Running | Slave_SQL_Running | Re
plicate_Do_DB | Replicate_Ignore_DB | Replicate_Do_Table | Replicate_Ignore_Tabl
e | Replicate_Wild_Do_Table | Replicate_Wild_Ignore_Table | Last_Errno | Last_Er
ror | Skip_Counter | Exec_Master_Log_Pos | Relay_Log_Space | Until_Condition | U
ntil_Log_File | Until_Log_Pos | Master_SSL_Allowed | Master_SSL_CA_File | Master
_SSL_CA_Path | Master_SSL_Cert | Master_SSL_Cipher | Master_SSL_Key | Seconds_Be
hind_Master |
+----------------------+-------------+-------------+-------------+--------------
-+------------------+---------------------+----------------------------------+--
-------------+-----------------------+------------------+-------------------+---
--------------+---------------------+--------------------+----------------------
--+-------------------------+-----------------------------+------------+--------
----+--------------+---------------------+-----------------+-----------------+--
--------------+---------------+--------------------+--------------------+-------
-------------+-----------------+-------------------+----------------+-----------
------------+
| Connecting to master | localhost | slaver | 3308 | 60
| mysql-bin.000301 | 461 | ccf-3acf6017ef4-relay-bin.000001 |
98 | mysql-bin.000301 | No | Yes | te
st1 | | |
| | | 0 |
| 0 | 461 | 98 | None |
| 0 | No | |
| | | |
|
+----------------------+-------------+-------------+-------------+--------------
-+------------------+---------------------+----------------------------------+--
-------------+-----------------------+------------------+-------------------+---
--------------+---------------------+--------------------+----------------------
--+-------------------------+-----------------------------+------------+--------
----+--------------+---------------------+-----------------+-----------------+--
--------------+---------------+--------------------+--------------------+-------
-------------+-----------------+-------------------+----------------+-----------
------------+
2、show slave status\G;
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Connecting to master
Master_Host: localhost
Master_User: slaver
Master_Port: 3308
Connect_Retry: 60
Master_Log_File: mysql-bin.000301
Read_Master_Log_Pos: 461
Relay_Log_File: ccf-3acf6017ef4-relay-bin.000001
Relay_Log_Pos: 98
Relay_Master_Log_File: mysql-bin.000301
Slave_IO_Running: No
Slave_SQL_Running: Yes
Replicate_Do_DB: test1
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 461
Relay_Log_Space: 98
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL
1 row in set (0.00 sec)
ERROR:
No query specified
这就是区别了！！排版的更友好一些吧！！
以此类推，凡是用到 status 的，加上一个\G 可以使信息更容易看一些！
show slave status\G; 不要用分号！
正确 的应该是：show slave status\G