ABAP Dictionnary

Question 1

ABAP data dictionary

Answer 1

• is a database independent DDL (Data Definition Language) and mainly deals with create, edit, drop the database tables
  In data dictionary you can define and maintain objects which are related to database.

Question 2

Functions of data dictionary

Answer 2

The important functions of data dictionary objects are as follows:

1. Database tables
2. Domains
3. Data elements
4. Views
5. Search helps
6. Lock Objects

Question 3

Database Tables

Answer 3

• collection of fields which contain physical data.
  -object that stores data in the form if rows and columns.
  The different types of tables are
  1.Transparent tables
  2.Pooled tables
  3.Cluster tables

Question 4

Domains

Answer 4

used to maintain technical information of field such as data types, data length, value range, etc.

Question 5

Data elements

Answer 5

Data element is the combination of data type, length and description .

Question 6

Views

Answer 6

View is a logical table that extracts the data from table at run time. Views can be defined using one or more multiple tables.
Different view types are
◾Data base view
◾Maintenance view
◾Help view
◾Projection view

Question 7

Search helps

Answer 7

Search helps are used to display all the possible entries in search help window. To display search help window, use function key F4 or search help icon. Types of search helps are
◾Elementary search help &
◾Collective search help.

Question 8

Lock Objects

Answer 8

used to control the parallel access for the same data by the multiple users i.e. synchronous access to the same data is provided using lock objects. Lock objects in data dictionary should start with the letter E.