Introduction

Table Maintenance Generator (TMG) is a feature in SAP ABAP that allows developers to create a user-friendly interface for maintaining entries in database tables. TMG simplifies the process of managing data in tables by providing a standard set of screens for creating, updating, and deleting records. This blog post will guide you through understanding TMG and the steps to create and maintain TMG, along with creating a transaction code for it.

What is TMG?

TMG stands for Table Maintenance Generator. It is used to generate a standard maintenance dialog for a table or view in SAP. With TMG, users can easily maintain table entries without having to write custom code for CRUD (Create, Read, Update, Delete) operations. TMG automatically creates a set of screens and functionality for maintaining table data.

Steps to Create TMG

1. Open the Data Dictionary (SE11)

   – Go to transaction code SE11.

   – Enter the name of the table for which you want to create TMG.

   – Click on the ‘Display’ button.

2. Generate Table Maintenance

   – In the Data Dictionary, navigate to Utilities > Table Maintenance Generator.

   – The Table Maintenance Generator screen will appear.

3. Specify Maintenance Attributes

   – Enter the details such as Authorization Group, Function Group, and Maintenance Screen Numbers.

   – Authorization Group: Defines which users can maintain the table.

    – Function Group: Group of function modules that will be created for the TMG.

    – Maintenance Screen Numbers: Default is 1 for single-screen maintenance.

4. Create TMG

   – Click on the ‘Create’ button.

   – In the next screen, choose Standard recording routine.

   – Click on the ‘Save’ button.

5. Generate Maintenance Screens

   – Confirm the function group and screen numbers, then click on ‘Generate’.

   – SAP will generate the necessary screens and function modules for table maintenance.

Steps to Maintain TMG

1. Access the TMG

   – Use the transaction code SM30.

   – Enter the name of the table or view and click on the ‘Maintain’ button.

2. Maintain Table Entries

   – You will be presented with the maintenance screen.

   – Here, you can add new records, update existing records, or delete records.

   – Use the standard toolbar buttons to save your changes.

Creating a Transaction Code for TMG

1. Go to Transaction Code SE93

   – Enter SE93 in the command field and press Enter.

2. Create a New Transaction Code

   – Enter a name for your new transaction code (e.g., ZMYTABLE).

   – Click on the ‘Create’ button.

3. Define the Transaction Code

   – In the ‘Transaction Code’ field, enter a description.

   – Choose Transaction with parameters (parameter transaction).

4. Set Parameters for SM30

   – Enter SM30 in the ‘Default values’ field.

   – In the ‘Default values’ section, set the following parameters:

    – DYNPRO: 1000

    – VIEWNAME: Name of your table

    – UPDATE: X (if you want the transaction to open in edit mode)

5. Save and Activate

   – Save your entries and activate the transaction code.