How to consistently keep value in your store proc match with column?

Hi Team

I need a bit of a help, i need on my store proc options, if example. i have batchnumber 1220, matches with the existing columns correcttly, so that if this batchnumber keeps updates to 1221 it continues to matches with that column, in this instance DateCapture. I have below a store procedure that does but i do bear in mind. Somehow i need to handle this correctly.

The window application is wpf and uses store procedure, so when a user opens pop screen the batch number by business rule. it must update to the next batch number. This part works fine, but now im thinking if other columns such as DateCapture doe not match it will leave a user wonder this data is incorrect and not consistent.

// store proc

USE [Adroit_Batch_Suite]
GO

/****** Object:  StoredProcedure [dbo].[spGetPremixSheet]    Script Date: 2024/07/25 09:53:21 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[spGetPremixSheet]
    @procOption NVARCHAR(50),
    @Batch INT = NULL,
    @DateCaptured DATE = NULL,
    @Code NVARCHAR(50) = NULL,
    @Phase NVARCHAR(100) = NULL,
    @Quantity DECIMAL(18, 2) = NULL,
    @Comments NVARCHAR(MAX) = NULL,
    @PrintedBarCodes INT,
    @UnusedBarcodes INT,
	@UsedBarCodes INT,
    @PrintedVar INT,
    @UserVar INT
    
AS
BEGIN
    SET NOCOUNT ON;

    IF @procOption = 'All'
    BEGIN
        SELECT Batch, DateCaptured, Code, Phase, Quantity, Comments, PrintedBarCodes, UnusedBarcodes, UsedBarCodes,PrintedVar, UserVar
        FROM [dbo].[Adr_Batch_PremixControl]
    END
	/** Primary key  **/
    ELSE IF @procOption = 'PK'
    BEGIN
        SELECT Batch, DateCaptured, Code, Phase, Quantity, Comments, PrintedBarCodes, UnusedBarcodes, UsedBarCodes,PrintedVar, UserVar 
        FROM [dbo].[Adr_Batch_PremixControl] 
        WHERE Batch = @Batch;
    END

	/*** Fetch the Code from the table **/
	ELSE IF @procOption = 'Code'
	BEGIN
		SELECT TOP 1 Code 
		FROM [dbo].[Adr_Batch_PremixControl]
		ORDER BY Code DESC;
	END

	/** Date matches the batch number**/
    ELSE IF @procOption = 'Date'
    BEGIN
        SELECT TOP 1 DateCaptured
        FROM [dbo].[Adr_Batch_PremixControl]
        ORDER BY DateCaptured DESC;
    END
	/**Batch number from the table***/
    ELSE IF @procOption = 'LatestBatchNumber'
    BEGIN
        SELECT TOP 1 Batch
        FROM [dbo].[Adr_Batch_PremixControl]
        ORDER BY Batch DESC;
    END

	/***Quantity column from the table***/
	ELSE IF @procOption = 'Quantity'
	BEGIN
	SELECT TOP 1 Quantity 
	FROM [dbo].[Adr_Batch_PremixControl]
	ORDER BY Quantity DESC;
END
	/**Phase column from the table**/
	ELSE IF @procOption = 'Phase'
	BEGIN
	SELECT TOP 10 Phase
	FROM [dbo].[Adr_Batch_PremixControl]
	ORDER BY Phase DESC;
END
END
GO

// wpf code flow using batch number as an example

// presenter class

public class ManagePremixBatchPresenter
    {
        IPremixBatch View;
        private static int currentBatchNumber = -1;


          
// constructor here


// method to get batch number sequentially
 public int GetNextBatchNumber(int batchNo)
            {
                Managers.PremixControlManager.SetAdriotConnection();

                try
                {
                    if (currentBatchNumber == -1)
                    {
                        // Get the latest batch number from the database only if the static field is not initialized
                        var latestBatchControl = Managers.PremixControlManager.GetLatestBatchNumber(batchNo);

                        if (latestBatchControl == null || latestBatchControl.Batch == 0)
                        {
                            throw new InvalidOperationException("Failed to retrieve the latest batch number.");
                        }

                            currentBatchNumber = latestBatchControl.Batch;
                    }

                // Increment the batch number to get the next one
                      currentBatchNumber++;
                    return currentBatchNumber;
                }
                catch (Exception ex)
                {
                    
                    Console.WriteLine($"Error in GetNextBatchNumber: {ex.Message}");
                    throw; 
                }
                finally
                {
                    Managers.PremixControlManager.SetDefaultConnection();
                }
            }

            
        }



}

// store procedure class handles entites

namespace Feedmill_Weighbridge.Managers
{
    class PremixControlManager
    {
        public static PremixControl GetPremixControlByPK(int batchID)
        {
            return DataAccessProvider.GetEntity(
                PremixControl.PROC_NAME_GET,
                new object[] { "PK", batchID, null, null, null, null, null, null, null, null, null, null }
            );
        }

        public static PremixControl GetLatestBatchNumber(int batchNo)
        {
            return DataAccessProvider.GetEntity(PremixControl.PROC_NAME_GET, new object[] { "LatestBatchNumber", batchNo, null, null, null, null, null, null, null, null, null, null });
        }
// connection string
 public static void SetAdriotConnection()
        {
            DataAccessProvider.SetConnection("ADROIT");
        }
        public static void SetDefaultConnection()
        {
            DataAccessProvider.SetConnection("SOUL");
        }


}

// main window form

public partial class frmPremixPostData : Window, IPremixBatch
    {
        public ManagePremixBatchPresenter presenter;
        public int batchNo;
        public DateTime _date;
        public string _code;
        public string _phase;
        public double _quantity;

        public string Description { get ; set; }
        public string BatchSize { get ; set; }
        public string Batch { get ; set; }
        public ComboBox ComboProdCode { get; set ; }
        public DataGrid GridMicroMaterial { get ; set ; }

        public DateTime DateCaptured
        {
            get { return _date; }
            set
            {
                _date = value;
                DateTextBox.Text = value.ToString("yyyy/M/d");
               
            }
        }

        public string Code
        {
            get
            {
                return _code;
            }
            set
            {
                _code = value;
                CodeTextBox.Text = value.ToString();
            }
        }

        public string Phase
        {
            get
            {
                return _phase;
            }
            set
            {
                _phase = value;
                PhaseTextBox.Text = value.ToString();
            }
        }

        public double Quantity
        {
            get
            {
                return _quantity;
            }
            set
            {
                _quantity = value;
                QuantityTextBox.Text = value.ToString();
            }
        }

        public frmPremixPostData()
        {
            InitializeComponent();
            presenter = new ManagePremixBatchPresenter(this);
            this.DataContext = this;
            this.Loaded += FrmPremixPostData_Loaded;
            
            
        }

        //incrementing a batch number sequentially.
        private void FrmPremixPostData_Loaded(object sender, RoutedEventArgs e)
        {
            int batchNumber = presenter.GetNextBatchNumber(batchNo);
            BatchTextBox.Text = batchNumber.ToString();
            presenter.GetDateForBatch();
            presenter.GetPremixCodeSheet();
            presenter.RetrievePhaseControl();
            presenter.RetrieveQuantity();

        }

}

}

Hi Gcobani,

To handle this situation effectively, you need to ensure that the stored procedure correctly updates the batch number while also verifying that other columns, such as DateCapture, remain consistent. Here's an approach you can take:

Check the Current Batch Number: Retrieve the current batch number and other relevant columns.
Update the Batch Number: Increment the batch number.
Verify Column Consistency: Ensure that other columns, such as DateCapture, are consistent with the updated batch number.

Here's an example of how you might implement this in a stored procedure:

CREATE PROCEDURE UpdateBatchNumber
AS
BEGIN
    DECLARE @CurrentBatchNumber INT;
    DECLARE @NewBatchNumber INT;
    DECLARE @DateCapture DATETIME;

    -- Start a transaction to ensure data consistency
    BEGIN TRANSACTION;

    -- Retrieve the current batch number and DateCapture
    SELECT TOP 1
        @CurrentBatchNumber = BatchNumber,
        @DateCapture = DateCapture
    FROM YourTable
    ORDER BY BatchNumber DESC;

    -- Increment the batch number
    SET @NewBatchNumber = @CurrentBatchNumber + 1;

    -- Update the batch number and ensure DateCapture consistency
    UPDATE YourTable
    SET BatchNumber = @NewBatchNumber,
        DateCapture = CASE 
            WHEN DateCapture IS NOT NULL THEN DateCapture
            ELSE GETDATE() -- Or another logic to handle DateCapture consistency
        END
    WHERE BatchNumber = @CurrentBatchNumber;

    -- Commit the transaction if everything is consistent
    COMMIT TRANSACTION;

    -- Return the new batch number
    SELECT @NewBatchNumber AS NewBatchNumber;
END;

Explanation:

Start a Transaction: This ensures that all operations within the transaction are completed successfully or rolled back in case of an error, maintaining data consistency.
Retrieve Current Batch Number and DateCapture: This selects the latest batch number and the associated DateCapture from the table.
Increment the Batch Number: The current batch number is incremented by 1.
Update the Batch Number and DateCapture: The batch number is updated to the new value. DateCapture is checked for consistency. If it's not null, it remains the same; otherwise, it is set to the current date/time or another consistent value as per your business logic.
Commit the Transaction: If all updates are successful, the transaction is committed, ensuring that the changes are saved to the database.

Integration with WPF Application:

In your WPF application, you can call this stored procedure and handle the result appropriately. Here is a basic example using ADO.NET:

using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows;

public void UpdateBatchNumber()
{
    string connectionString = "YourConnectionString";
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        SqlCommand command = new SqlCommand("UpdateBatchNumber", connection);
        command.CommandType = CommandType.StoredProcedure;

        try
        {
            connection.Open();
            SqlDataReader reader = command.ExecuteReader();

            if (reader.Read())
            {
                int newBatchNumber = reader.GetInt32(0);
                MessageBox.Show($"Batch number updated to {newBatchNumber}");
            }

            reader.Close();
        }
        catch (Exception ex)
        {
            MessageBox.Show($"Error: {ex.Message}");
        }
    }
}

In this example, the UpdateBatchNumber method connects to the database, calls the stored procedure, and displays the new batch number to the user. You can integrate this method into your WPF application's logic to update the batch number when needed.