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Re: CONVERSION FROM CHAR(4) TO DATETIME

Posted by Hugo Kornelis on 11/23/06 23:21

On 22 Nov 2006 22:46:19 -0800, paul_zaoldyeck wrote:

>i have another problem.and it's now on converting a char(4) to datetime
>here is the situation
>J_TIM < F_TIM
>
>J_TIM is datetime while F_TIM is char of 4
>
>example
>
>J_TIM = 20:30
>F_TIM = 2030
>
>how can i convert F_TIM to datetime so that i can compare them.
>???
>
>thanks

Hi Paul,

DECLARE @F_TIM char(4);
SET @F_TIM = '2030';
SELECT STUFF(@F_TIM, 3, 0, ':');
SELECT CAST(STUFF(@F_TIM, 3, 0, ':') AS datetime);

Note that the reply posted by othellomy will work, but won't enable you
to efficiently use an index on the J_TIM column (in case there is one).

Also read Tibor's ultimate guide to the datetime datatype. You'll find
it at http://www.karaszi.com/SQLServer/info_datetime.asp

--
Hugo Kornelis, SQL Server MVP

 

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