通过在 SQL 服务器中组合 DATEDIFF(hh,StartTime,EndTime) + 'Minutes' 需要 output

Question

When running this query, I need output by combining

DATEDIFF(mm, StartTime, EndTime) + 'Minutes'

I'm getting this error

Conversion failed when converting the varchar value 'Minutes' to data type int

I need to achieve the output like 15 Minutes .

(15 represents the difference between StartTime and EndTime)

Answer 1

DATEDIFF function returns a INT values. So you need to CAST it to a string.

Try something like

SELECT CAST(DATEDIFF(mm,StartTime, EndTime) AS NVARCHAR(2)) + 'Minutes'

Obviously you can use other destination string type like char\nchar etc... And use the CONVERT function instead of CAST.

Answer 2

Use CONCAT() :

select concat(DATEDIFF(minute, StartTime, EndTime), 'Minutes')

CONCAT() will conveniently convert arguments to strings. Also note that this spells out minute . I recommend using the full name when using date functions.