How to add dynamic identity column with select statement

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I want to show a column [Id] with auto increment with respect select statement.
Something like that.
Values of Field Column [Value] is creating by Case statement

Id   Value
1    Created
2    removed
3    N/A

What I have tried:

SELECT DISTINCT 1 AS StId, 
CASE WHEN SD.Id = 0 THEN 'N/A' ELSE
CASE WHEN  SD.Id != 0 THEN 'Created' ELSE 'Removed' END END AS DisplayValue
FROM Student SD

Its Showing Recode looking like that

Id	Value
1	Created
1	Removed
1	N/A

Posted 29-Jul-19 19:57pm

arvindcis

Updated 29-Jul-19 20:12pm

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OriginalGriff · Answer 1 · 2019-07-29T20:13:00

Solution 1

Use a Join: Set up a second table:
DisplayValues

ID     INT, IDENTITY
Desc   NVARCHAR(MAX)

And populate it with your text strings.
Then it's simple:

SQL

SELECT s.ID, d.Desc
FROM Students s
JOIN DisplayValues d ON s.ID = d.ID

Posted 29-Jul-19 20:13pm

OriginalGriff

Comments

Maciej Los 30-Jul-19 15:31pm

Does Desc shouldn't be around with brackets?

OriginalGriff 30-Jul-19 15:38pm

Probably - I'm on tablet ATM, so SQL is a PITA; that was early in the morning ... :laugh: