Question

I want to return an extra computed column as bit for each rowID that exist as foreign ke in Joined table.for example: Select PId, PName from Part where PId in (Select distinct FkPid in joined Part

Result should be like Pid| PName|Bit|

Thanks

Answer 1

Select PId, PName, CAST(CASE WHEN B.fkPid IS NULL THEN 0 ELSE 1 END AS BIT) ExistsOtherTable
from Part A
LEFT JOIN (Select distinct FkPid FROM [joined Part]) B
ON A.PId = B.fkPid