MS-SQL服務器2008r2從smalltimedate中選擇時間，不管日期如何

Question

我有一個smalltimedate列，希望對其進行通配符搜索，並查找具有00:00:00時間的所有行，而不考慮日期。

如

id | col 

1 | 2014-01-01 00:01:00 
2 | 2014-01-02 00:01:00 
3 | 2014-01-03 00:00:00 
4 | 2014-01-04 00:00:00 

將返回

id | col 

3 | 2014-01-03 00:00:00 
4 | 2014-01-04 00:00:00 

什麼是最簡單的方法是什麼？

Answer 1

WHERE CONVERT(VARCHAR(8),col,108) = '00:00:00' 

http://www.w3schools.com/sql/func_convert.asp參見

Answer 2

嘗試這一個 -

DECLARE @t TABLE 
(
    id INT PRIMARY KEY, 
    col SMALLDATETIME 
) 

INSERT INTO @t (id, col) 
VALUES 
    (1, '2014-01-01 00:01:00'), 
    (2, '2014-01-02 00:01:00'), 
    (3, '2014-01-03 00:00:00'), 
    (4, '2014-01-04 00:00:00') 

SELECT * 
FROM @t 
WHERE CAST(col AS FLOAT) - ROUND(CAST(col AS FLOAT), 0) = 0 

輸出 -

id   col 
----------- ----------------------- 
3   2014-01-03 00:00:00 
4   2014-01-04 00:00:00 

Answer 3

醜陋，但是......

SELECT ... 
WHERE DATEPART(hour, col) = 0 AND DATEPART(minute, col) = 0 AND DATEPART(second,col) = 0 

Answer 4

如何

select 
    * 
from 
    T 
where 
    cast(col as time) = '00:00:00' 

Answer 5

SELECT * FROM表 WHERE CONVERT（CHAR（10），山口，108）= '00：00：00'