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mysql> select concat( month(current_date()),'月→',Cast(month(current_date()) AS
CHAR),'月');
+-------------------------------------------------------------------------------
-+
| concat( month(current_date()),'月→',Cast(month(current_date()) AS CHAR),'月')
|
+-------------------------------------------------------------------------------
-+
| 12月→12月
|
+-------------------------------------------------------------------------------
-+
1 row in set (0.00 sec)
mysql> select concat( month(current_date()),'月→',month(current_date()) ,'月');
+-------------------------------------------------------------------+
| concat( month(current_date()),'月→',month(current_date()) ,'月') |
+-------------------------------------------------------------------+
| 12月→12月 |
+-------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql>