Modify stored procedure to return data - sql

Question

I have a stored procedure that is looking if any company has same number and return true or false related to this.
This is the code of my stored procedure:
CREATE PROCEDURE [CoDb].[CompanyAttribute_RunDataValidation]
#AttributeId INT,
#Value VARCHAR(255),
#ValidationType SMALLINT,
#Operation SMALLINT,
#CompanyId INT
AS
BEGIN
DECLARE #ValidationSuccess AS BIT = 1
--Create operation
IF #Operation = 1
BEGIN
--Unique validation
IF #ValidationType = 1
BEGIN
IF EXISTS(SELECT 1 FROM [CoDb].[CompanyAttribute] CA
WHERE CA.AttributeId = #AttributeId
AND CA.Value = #Value AND CA.IsDeleted = 0)
SET #ValidationSuccess = 0
END
END
--Update operation
ELSE IF #Operation = 2
BEGIN
--Unique validation
IF #ValidationType = 1
BEGIN
IF EXISTS(SELECT 1 FROM [CoDb].[CompanyAttribute] CA
WHERE CA.AttributeId = #AttributeId
AND CA.Value = #Value AND CA.CompanyId <> #CompanyId
AND CA.IsDeleted = 0)
SET #ValidationSuccess = 0
END
END
SELECT #ValidationSuccess
END
Now it returns just true or false.
I want it to return 2 value: 1 - true or false and companyName from selected company
I rewrote my stored procedure like this:
CREATE PROCEDURE [CoDb].[CompanyAttribute_RunDataValidation]
#AttributeId INT,
#Value VARCHAR(255),
#ValidationType SMALLINT,
#Operation SMALLINT,
#CompanyId INT
AS
BEGIN
DECLARE #ValidationSuccess AS BIT = 1
DECLARE #CompanyName AS VARCHAR(255) = ''
--Create operation
IF #Operation = 1
BEGIN
--Unique validation
IF #ValidationType = 1
BEGIN
IF EXISTS(SELECT *
FROM [CoDb].[CompanyAttribute] CA
INNER JOIN [CoDb].[Company] C on C.Id = CA.CompanyId
WHERE CA.AttributeId = #AttributeId
AND CA.Value = #Value AND CA.IsDeleted = 0)
SET #ValidationSuccess = 0
SET #CompanyName =
END
END
--Update operation
ELSE IF #Operation = 2
BEGIN
--Unique validation
IF #ValidationType = 1
BEGIN
IF EXISTS(SELECT *
FROM [CoDb].[CompanyAttribute] CA
INNER JOIN [CoDb].[Company] C on C.Id = CA.CompanyId
WHERE CA.AttributeId = #AttributeId
AND CA.Value = #Value AND CA.CompanyId <> #CompanyId
AND CA.IsDeleted = 0)
SET #ValidationSuccess = 0
END
END
SELECT #ValidationSuccess
END
But how I can get field from select, for example CompanyName?

Answer 1

Try something like this:
--Create operation
IF #Operation = 1
BEGIN
--Unique validation
IF #ValidationType = 1
IF EXISTS (SELECT *
FROM [CoDb].[CompanyAttribute] CA
INNER JOIN [CoDb].[Company] C ON C.Id = CA.CompanyId
WHERE CA.AttributeId = #AttributeId
AND CA.Value = #Value AND CA.IsDeleted = 0)
BEGIN
SELECT
C.CompanyName, 0 AS ValidationSuccess
FROM [CoDb].[Company] C
WHERE C.Id = #CompanyId
RETURN
END
END
You basically need to use a SELECT to "build" the result set to be returned as a result of the stored procedure.