mysql> select version(); 
+-----------------------+ 
| version()             | 
+-----------------------+ 
| 6.0.4-alpha-community | 
+-----------------------+ 
1 row in set (0.02 sec
显示当前时间
mysql> select now(); 
+---------------------+ 
| now()               | 
+---------------------+ 
| 2009-09-15 22:35:32 | 
+---------------------+ 
1 row in set (0.04 sec) 

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