mysql_1

1.mysql> select NOW();等效于select user()\g
+---------------------+
| NOW()               |
+---------------------+
| 2015-11-07 10:29:04 |
+---------------------+
1 row in set (0.00 sec)
mysql> select NOW(),USER(),VERSION();
+---------------------+----------------+-----------------+
| NOW()               | USER()         | VERSION()       |
+---------------------+----------------+-----------------+
| 2015-11-07 10:32:18 | root@localhost | 5.5.35-1ubuntu1 |
+---------------------+----------------+-----------------+
1 row in set (0.00 sec)

mysql> select NOW(),USER(),VERSION()\g
+---------------------+----------------+-----------------+
| NOW()               | USER()         | VERSION()       |
+---------------------+----------------+-----------------+
| 2015-11-07 10:35:37 | root@localhost | 5.5.35-1ubuntu1 |
+---------------------+----------------+-----------------+
1 row in set (0.00 sec)

mysql> select NOW(),USER(),VERSION()\G
*************************** 1. row ***************************
    NOW(): 2015-11-07 10:35:41
   USER(): root@localhost
VERSION(): 5.5.35-1ubuntu1
1 row in set (0.00 sec)
取消
mysql> select user(),
    -> now(),
    -> \c
mysql>

创建数据库

mysql> create database sampdb;
Query OK, 1 row affected (0.02 sec)

mysql> select database();
+------------+
| database() |
+------------+
| NULL       |
+------------+
1 row in set (0.00 sec)

mysql> use sampdb;   $mysql sampdb -u root -p

$mysql -h hostname -u root -p sampdb

mysql> select database();
Database changed

+------------+
| database() |
+------------+
| sampdb     |
+------------+
1 row in set (0.00 sec)

mysql_1

原文：http://www.cnblogs.com/guxuanqing/p/4944763.html