MySQL - 最有效的方式选择今天的日期，时间为00:00:00

Question

如何选择当前日期的午夜？

2013-03-27 00:00:00

Answer 1

SELECT *
FROM   TableName
WHERE  dateColumn = CURDATE() 

CURDATE()返回当前日期，时间设置为00:00:00。

• SQLFiddle Demo

Answer 2

mysql> select cast(current_date() as datetime);
+----------------------------------+
| cast(current_date() as datetime) |
+----------------------------------+
| 2013-03-27 00:00:00              |
+----------------------------------+
1 row in set (0.00 sec)

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