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MySQL中如何横向显示结果集 推荐

2008-06-30 16:31 253 查看
当我们的查询结果字段比较多的时候,显示会比较乱,比如查询mysql数据库中的user表,一般查询会显示如下:
(root@localhost) [Fri Jul 11 17:02:16 2008]> select * from user;
+-----------------------+------+-------------------------------------------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+--------------+-----------+------------+-----------------+------------+------------+--------------+------------+-----------------------+------------------+--------------+-----------------+------------------+------------------+----------------+---------------------+--------------------+------------------+----------+------------+-------------+--------------+---------------+-------------+-----------------+----------------------+
|
Host | User |
Password | Select_priv | Insert_priv |
Update_priv | Delete_priv | Create_priv | Drop_priv | Reload_priv |
Shutdown_priv | Process_priv | File_priv | Grant_priv | References_priv
| Index_priv | Alter_priv | Show_db_priv | Super_priv |
Create_tmp_table_priv | Lock_tables_priv | Execute_priv |
Repl_slave_priv | Repl_client_priv | Create_view_priv | Show_view_priv
| Create_routine_priv | Alter_routine_priv | Create_user_priv |
ssl_type | ssl_cipher | x509_issuer | x509_subject | max_questions |
max_updates | max_connections | max_user_connections |

+-----------------------+------+-------------------------------------------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+--------------+-----------+------------+-----------------+------------+------------+--------------+------------+-----------------------+------------------+--------------+-----------------+------------------+------------------+----------------+---------------------+--------------------+------------------+----------+------------+-------------+--------------+---------------+-------------+-----------------+----------------------+
|
localhost | root
| | Y | Y
| Y | Y | Y | Y | Y |
Y | Y | Y | Y | Y
| Y | Y | Y | Y |
Y | Y | Y |
Y | Y | Y | Y
| Y | Y | Y
| | | | | 0
| 0 | 0 | 0 |
|
localhost.localdomain | root
| | Y | Y
| Y | Y | Y | Y | Y |
Y | Y | Y | Y | Y
| Y | Y | Y | Y |
Y | Y | Y |
Y | Y | Y | Y
| Y | Y | Y
| | | | | 0
| 0 | 0 | 0 |
|
127.0.0.1 | root
| | Y | Y
| Y | Y | Y | Y | Y |
Y | Y | Y | Y | Y
| Y | Y | Y | Y |
Y | Y | Y |
Y | Y | Y | Y
| Y | Y | Y
| | | |
。。。。。。

这个结果几乎无法进行查看,当然,我们可以垂直显示,这也是我们经常使用的方法:
(root@localhost) [Fri Jul 11 17:04:07 2008]> select * from user G;
*************************** 1. row ***************************
Host: localhost
User: root
Password:
Select_priv: Y
Insert_priv: Y
Update_priv: Y
Delete_priv: Y
Create_priv: Y
Drop_priv: Y
Reload_priv: Y
Shutdown_priv: Y
Process_priv: Y
File_priv: Y
Grant_priv: Y
References_priv: Y
Index_priv: Y
Alter_priv: Y
Show_db_priv: Y
Super_priv: Y
Create_tmp_table_priv: Y
Lock_tables_priv: Y
Execute_priv: Y
Repl_slave_priv: Y
Repl_client_priv: Y
Create_view_priv: Y
Show_view_priv: Y
Create_routine_priv: Y
Alter_routine_priv: Y
Create_user_priv: Y
ssl_type:
ssl_cipher:
x509_issuer:
x509_subject:
max_questions: 0
max_updates: 0
max_connections: 0
max_user_connections: 0
*************************** 2. row ***************************
Host: localhost.localdomain
User: root
。。。。。。

但是当我们的结果记录有很多时候,这种垂直显示明显效率不高,这时候有啥好办法吗?

我们可以借助与pager工具,pager可以和操作系统的文档显示命令进行结合,来进行记录的分页显示:
(root@localhost) [Fri Jul 11 17:06:26 2008]> pager less
PAGER set to 'less'
(root@localhost) [Fri Jul 11 17:06:30 2008]> select * from user G;
*************************** 1. row ***************************
Host: localhost
User: root
Password:
Select_priv: Y
Insert_priv: Y
Update_priv: Y
Delete_priv: Y
Create_priv: Y
Drop_priv: Y
Reload_priv: Y
Shutdown_priv: Y
Process_priv: Y
File_priv: Y
Grant_priv: Y
References_priv: Y
Index_priv: Y
Alter_priv: Y
Show_db_priv: Y
Super_priv: Y
Create_tmp_table_priv: Y
Lock_tables_priv: Y
Execute_priv: Y
Repl_slave_priv: Y
Repl_client_priv: Y
Create_view_priv: Y
Show_view_priv: Y
Create_routine_priv: Y
Alter_routine_priv: Y
Create_user_priv: Y
ssl_type:
ssl_cipher:
x509_issuer:
x509_subject:
max_questions: 0
max_updates: 0
max_connections: 0
max_user_connections: 0
*************************** 2. row ***************************
Host: localhost.localdomain
User: root
Password:
Select_priv: Y
Insert_priv: Y
:通过less的翻页功能可以让记录上下翻页,此时我们加上less的-S功能,即显示长行功能,即可以实现我们的翻页+水平显示功能:
(root@localhost) [Fri Jul 11 17:10:06 2008]> pager less -S
PAGER set to 'less -S'
(root@localhost) [Fri Jul 11 17:10:09 2008]> select * from user ;
+-----------------------+------+-------------------------------------------+-------------+-------------+-------------+-------------+
|
Host | User |
Password | Select_priv | Insert_priv |
Update_priv | Delete_priv |
+-----------------------+------+-------------------------------------------+-------------+-------------+-------------+-------------+
|
localhost | root
| | Y | Y
| Y | Y |
| localhost.localdomain | root
| | Y | Y
| Y | Y |
| 127.0.0.1 | root
| | Y | Y
| Y | Y |
| localhost | z1
| | N | N
| N | N |
| localhost | z4
| | N | N
| N | N |
| localhost | z
| | N | N
| N | N |
| localhost | z3
| | N | N
| N | N |
| test_hostname | z1
| | N | N
| N | N |
| 192.168 | z1
| | N | N
| N | N |
| 1921168 | z1
| | N | N
| N | N |
| localhost | z10
| | N | N
| N | N |
| % | z1
| | N | N
| N | N |
| % | z2 |
*23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | N | N |
N | N |
| % | z3
| | N | N
| N | N |
| % | z4 |
*23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | Y | N |
N | N |
+-----------------------+------+-------------------------------------------+-------------+-------------+-------------+-------------+
(END)

此时我们再按左右键就可以水平显示剩余字段的内容,如下:
---------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+----------

| Select_priv | Insert_priv | Update_priv | Delete_priv | Create_priv |
Drop_priv | Reload_priv | Shutdown_priv | Process_p
---------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+----------

| Y | Y | Y | Y | Y |
Y | Y | Y | Y
|
Y | Y | Y | Y | Y |
Y | Y | Y | Y
|
Y | Y | Y | Y | Y |
Y | Y | Y | Y
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
E05AA257 |
N | N | N | N | N |
N | N | N | N
|
N | N | N | N | N |
N | N | N | N
E05AA257 |
Y | N | N | N | N |
N | N | N | N
---------+-------------+-------------+-------------+-------------+-------------+-----------+-------------+---------------+----------
~
~这个功能在对字段比较多的表查询时将非常方便。
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