Preface – This post is part of the ABAP Beginner series.
Table of Contents
Data Class in ABAP
Data Class in ABAP is assigned to a table in its Technical Settings. SAP was smart while creating properties for tables. With the help of Data Class it divides the Tables according to their type of Data. It keeps all Master Data together, all Transaction Data together, all User Data together and all Organizational Data together.
Definition:
A Data Class represents a physical area in Data Base where all the Data of the table assigned to this Data Class are stored.
TYPES OF DATA CLASS:
| DATA CLASS | TYPE OF DATA | DESCRIPTION |
| APPL0 | Master Data | Data that doesn’t changes frequently. e.g. Your Name, Your Employee ID, Your Student ID |
| APPL1 | Transaction Data | Data that changes frequently. e.g. Number of Products on Amazon, Value of Bitcoin |
| APPL2 | Organizational Data | Customizing Data which is defined during System Installation and that doesn’t changes frequently. e.g. Country Codes. |
| USR & USR1 | User Data | Data Class only for user Development. |
*NOTE: Customizing Data is the data that describes the behavior of SAP environment for particular module.
e.g. Country Codes, types of Reimbursement Expenses, working hours of Employees.
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