Fixed values not accepted in SSRS - reporting-services

Question

I created the above query for a time range, and I am attempting to add it to the parameters
Although this is a fixed value, I am unable to get the query to accept the fixed value.
Is there any other way to approach this?

Answer 1

I think you are approaching this incorrectly. As far as I know you cannot use the results of a query to populate a parameter value like that.
If the below does not work, then I would edit your question, show a sample of the data you are working with, the parameter labels you want to show and then the expected outcome.
At the moment your parameter value will just be a text string that looks like a t-sql query
You probably just need to edit your dataset query and parameter values.
For example. Set you parameters values to
Label
Value
Shift 1
1
Shift 2
2
Shift 3
3
Then your dataset query would look something like
SELECT * FROM myTable
WHERE CAST(myDateTimeColumn AS Time) BETWEEN
CASE #Shift
WHEN 1 THEN CAST('21:00:00' AS Time)
WHEN 2 THEN CAST('22:00:00' AS Time)
WHEN 3 THEN CAST('23:00:00' AS Time)
END
AND
CASE #Shift
WHEN 1 THEN CAST('21:59:59' AS Time)
WHEN 2 THEN CAST('22:59:59' AS Time)
WHEN 3 THEN CAST('23:59:59' AS Time)
END
This won't be perfect as it would miss anything less than a second before a new hour but should get you on the right track.
note: This is also untested as it's done from memory