SQL Server Stored Procedure - UPDATE - Example

Source code to create and add sql update stored procedure to catalog

The following example is for creating a simple update stored procedure. You can run it through an explicit call from a host language program or directly from a DBMS query execution shell like SQL Server Management Studio or dbOrchestra.

CREATE PROCEDURE dbo.sp_Students_UPD_byPK
       @active_flg                     TINYINT          = NULL ,
       @student_id                     INT
AS
BEGIN 
      SET NOCOUNT ON 

      UPDATE dbo.Students
      SET 
             active_flg    = ISNULL(@active_flg  , active_flg      )
      FROM   dbo.Students
      WHERE  
             student_id    = @student_id                   

END
GO 

It is important to note that for every column you include in the update code you will need to enter data for. Typically, an sql update stored procedure would be created for all the columns. There would be a mapping layer that moves existing data to the exposed variables. In the example provided I have created an update stored procedure that could be tied directly to a function that would activate or inactivate a student. Having an sql update stored procedure for this type of activity is wholly rational and appropriate. 

Executing the sql update stored procedure

Execute sql update stored procedure

To run the stored procedure you need to supply a values to the applicable variables.

-- @active_flg  IN  TINYINT
-- @student_id  IN  INT

EXEC dbo.sp_Students_UPD_byPK
     @active_flg  =    0   , 
     @student_id  =    23  

Link to schema for Students table