Question

I would like to prepare procedure which will take 2 arguments (Int, string) If some row will exist in table I will get @dane = 1; and in the end I would like to select @dane but my procedure is not good. I can not use return @dane.

    USE [SS]
    GO

    SET ANSI_NULLS ON
    GO
    SET QUOTED_IDENTIFIER ON
    GO

    CREATE PROCEDURE [permission].[CheckSkill] 
(
    @SkillId INT, -- Identyfikator użytkownika 
    @Description NVARCHAR(100) = NULL
)
AS
BEGIN
    SET NOCOUNT ON;
    DECLARE @dana as int
    SET @dana = 0

    -- this is redundant:
    --SET @Description = RTRIM(LTRIM(ISNULL(@Description,'')))

    IF EXISTS (SELECT * FROM permission.UserXSkill Where permission.UserXSkill.SkillId = @SkillId)
    BEGIN
      SET @dana = 1;
    END

    SELECT @dana AS ID;
END
GO

Topic [closed] Thanks for help.

Answer 1

You need to use SET or SELECT when assigning a value to a variable.

EXISTS seems to serve the requirement in your IF block

The @Description parameter is unused and is redundant

USE [SS]
GO

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE PROCEDURE [permission].[CheckSkill] 
(
    @SkillId INT, -- Identyfikator użytkownika 
    @Description NVARCHAR(100) = NULL,

)
AS
BEGIN
    SET NOCOUNT ON;
    DECLARE @dana as int
    SET @dana = 0

    -- this is redundant:
    --SET @Description = RTRIM(LTRIM(ISNULL(@Description,'')))

    IF EXISTS (SELECT * FROM permission.UserXSkill Where permission.UserXSkill = @SkillId)
    BEGIN
      SET @dana = 1;
    END

    SELECT @dana AS ID;
END
GO