Question

我尝试用HH投射时间：MM格式它工作正常但是当我插入超过23小时的时间，即24:0时，它会产生错误

＆＃34;将varchar数据类型转换为日期时间数据类型会导致超出范围的值。＆＃34;

以下是代码

CREATE TABLE mytable
(
timeduration varchar(25)
)

INSERT INTO mytable VALUES ('05:30')
INSERT INTO mytable values ('24:0')
INSERT INTO mytable values ('04:33')

-- OUTPUT SHOULD BE 34:3 MINUTES

select CAST
(
(SUM (datepart(hh, convert (varchar, timeduration, 108))) +
(sum(datepart(mi, convert (varchar, timeduration, 108)))/60) ) AS VARCHAR(2)
)
+ ':' +
CAST
(
sum(datepart(mi, convert (varchar, timeduration, 108))) - 60 * (sum(datepart(mi, convert (varchar, timeduration, 108)))/60)
 as VARCHAR(2))
 from mytable

Answer 1

你的问题是'24：00'，如果你想让它工作，这里应该是'00：00'。但是你必须为你的查询添加案例表达式。我建议你改写为：

DECLARE @mytable TABLE
    (
      timeduration VARCHAR(25)
    )

INSERT  INTO @mytable
VALUES  ( '05:30' )
INSERT  INTO @mytable
VALUES  ( '24:0' )
INSERT  INTO @mytable
VALUES  ( '04:33' );


WITH    cte
          AS ( SELECT   SUM(CAST(SUBSTRING(timeduration, 1, CHARINDEX(':', timeduration) - 1) AS INT)) AS Hours ,
                        SUM(CAST(SUBSTRING(timeduration, CHARINDEX(':', timeduration) + 1, 5) AS INT)) AS Minutes
               FROM     @mytable
             )
    SELECT  CAST(Hours + Minutes / 60 AS NVARCHAR(20)) + ':' + CAST(Minutes % 60 AS NVARCHAR(20)) AS Duration
    FROM    cte

输出：

Duration
34:3

将varchar转换为time并在SQL中生成SUM会生成Error

1 个答案: