Data Dictionary-Questions and Answers - SAP ABAP
ABAP Data Dictionary Certification Questions & Answers 1. What are the layers of data description in R/3? -The external layer. -The ABAP/4 layer. - The database layer. 2. Define external layer? The external layer is the plane at which the user sees and interacts with the data, that is, the data format in the user interface. This data format is independent of the database system used. 3. Define ABAP/4 layer? The ABAP/4 layer describes the data formats used by the ABAP/4 processor. 4. Define Database layer? The database layer describes the data formats used in the database. 5. What is a Data Class? The Data class determines in which table space the table is stored when it is created in the database. 6. What is a Size Category? The Size category describes the probable space requirement of the table in the database. 7. How many types of size categories and data classes are there? There are 5 size categories (0-8) and 10 data classes only three of ...