mysql 获取系统时间

mysql> select   now();
+---------------------+
| now()               |
+---------------------+
| 2011-06-11 12:00:54 |
+---------------------+
1 row in set (0.00 sec)




mysql> select   sysdate();
+---------------------+
| sysdate()           |
+---------------------+
| 2011-06-11 12:00:54 |
+---------------------+
1 row in set (0.00 sec)





mysql> select   curdate();
+------------+
| curdate()  |
+------------+
| 2011-06-11 |
+------------+
1 row in set (0.00 sec)





mysql>  select   current_date;
+--------------+
| current_date |
+--------------+
| 2011-06-11   |
+--------------+
1 row in set (0.00 sec)





mysql>  select   curtime();
+-----------+
| curtime() |
+-----------+
| 12:00:54  |
+-----------+
1 row in set (0.00 sec)







mysql> select   current_time;
+--------------+
| current_time |
+--------------+
| 12:00:54     |
+--------------+
1 row in set (0.00 sec)