Using Stored Procedures

This document describes how to create a Stored Procedure in SQL Server and test it from your Project.

Creating a Stored Procedure

The Stored Procedures used in this test can be created by following the description below:

Creating DB

USE master;
CREATE DATABASE test; GO

Creating Tables with Primary Keys (Spec id and Char id)

USE test GO
CREATE TABLE dbo.Characteristic (Char_Id int PRIMARY KEY NOT NULL,
Char_Desc varchar(25) NOT NULL, OptionsChar varchar(25))
GO
INSERT dbo.Characteristic (Char_Id, Char_Desc, OptionsChar) VALUES(10,’C010’,’Char1’),(15,’C015’,’Char2’),(19,’C019’,’Char3’),(14,’C014’,’Char4’),(18,’C018’,’Char5’),(17,’C017’,’Char6’),(16,’C016’,’Char7’)GO
CREATE TABLE dbo.Specification (Spec_ID int PRIMARY KEY NOT NULL,
Spec_Desc varchar(25) NOT NULL, OptionsSpec varchar(25))
GO
INSERT dbo.Specification (Spec_ID, Spec_Desc, OptionsSpec) VALUES
(30, ’Spec 30’, ’Spec1’),
(32, ’Spec 32’, ’Spec2’),
(33, ’Spec 33’, ’Spec3’),
(37, ’Spec 37’, ’Spec4’),
(34, ’Spec 34’, ’Spec5’),
(39, ’Spec 39’, ’Spec6’),
(35, ’Spec 35’, ’Spec7’) GO

Creating a third table that contains the PrimaryKeys from the other two

CREATE TABLE dbo.Active_Spec (AS_ID int PRIMARY KEY NOT NULL,
Char_ID int NOT NULL, Spec_ID int NOT NULL, OptionsAS varchar(25))
GO
INSERT dbo.Active_Spec(AS_ID, Spec_ID, Char_ID, OptionsAS) VALUES(1,30,10,’AS1’),(2,37,19,’AS2’),(3,34,19,’AS3’),(7,35,16,’AS7’),(4,34,19,’AS4’),(6,39,18,’AS6’),(5,32,19,’AS5’)GO
USE [Test] GO
SET ANSI_NULLS ON GO
SET QUOTED_IDENTIFIER ON GO
CREATE PROCEDURE [dbo].[TestSP]
@Char_Desc varChar(50)
AS BEGIN
SET NOCOUNT ON;

Declare @Char_Id int, @Spec_Id int

Select @Char_Id = Char_Id from Characteristic where Char_Desc = @Char_Desc

Select c.char_Desc, s.Spec_Id, s.Spec_Desc, c.OptionsChar, s.OptionsSpec, asp.OptionsAS
From Specification s
Join Active_Spec asp on asp.Spec_Id = s.Spec_Id Join Characteristic c on c.Char_Id = asp.Char_Id
Where c.Char_Id = @Char_Id GROUP BY c.Char_Desc,
s.Spec_Id, s.Spec_Desc, c.OptionsChar, s.OptionsSpec, asp.OptionsAS
END

Executing Procedure in SSMS.

EXEC TestSP ’C019’

Saving the result of a query to a Tag or .NET variable

Let us say your application has a Tag of type DataTable named Test, a Dataset Query with name Query1, you can populate that Tag executing:

@Tag.Test = @Dataset.Query.Query1.SelectComand()

Executing Stored Procedures

Both Queries and Stored Procedure are define at the Datasets → Queries table.

In order to execute the Stores Procedure, use the ExecuteCommand() method.

E.g.: Dataset.Queries.Query1.ExecuteCommand()

When passing parameters, you can use the syntax @null@ to pass a null as parameter. See example below:

Exec TestOutput @return_Value = {Tag.ReturnValue} RETURN_VALUE, @vcrPrefix = @null@, @intNextNumber = {Tag.NextNumber} OUTPUT, @vcrFullLicense = {Tag.NextLicense} OUTPUT

Project Configuration

In your Engineering Environment, go to the Datasets → DBs page, and create a new DB for the SQL Server provider. The user must have administrator privileges in order to input the logon name and password.

In this test, the Stored Procedure was created in the Test catalog.

On Datasets → Queries, create a new query assigned for this DB connection.

In the Draw Environment, a DataGrid was added and its DataSource was set for the Query created above. Then, a button is used to run the script below:

public void RunSP_Btn(object sender, System.Windows.Input.InputEventArgs e)
{
string sqlStatement = string.Format("exec TestSP ’{0}’", "C019"); @Dataset.Query.Query_SqlServer.SqlStatement = sqlStatement;

string sts = ""; @Dataset.Query.Query_SqlServer.ExecuteCommandWithStatus(out sts);
}

After executing the code above, the result should be the same as in SSMS.

Test Results

Test Description	Results
Creating Procedure in SQL Server.	OK.
Running Procedure in SSMS.	OK.
Running Procedure in fs-9.1.9.	OK.

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