TSQL转换查询返回TRUE/FALSE

Question

如何转换此查询以返回TRUE/FALSE值？

SELECT UserID, ResumeID AS PreviouslyViewed FROM MVJ_ProfileViews 
WHERE UserID = [User:UserID] 
AND ResumeID = [TknParams:ResumeID] 

Answer 1

你可以把结果

SELECT CASE WHEN EXISTS (
    SELECT UserID, ResumeID AS PreviouslyViewed 
    FROM MVJ_ProfileViews 
    WHERE UserID = [User:UserID] AND 
      ResumeID = [TknParams:ResumeID] 
) 
THEN CAST(1 AS BIT) 
ELSE CAST(0 AS BIT) 
END AS result 

Answer 2

IF EXISTS (SELECT UserID, ResumeID AS PreviouslyViewed 
    FROM MVJ_ProfileViews 
    WHERE UserID = [User:UserID] AND 
      ResumeID = [TknParams:ResumeID]) 
BEGIN 
    SELECT 'TRUE' Result 
END 
ELSE 
BEGIN 
    SELECT 'FALSE' Result 
END