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SAP ABAP - VIEWS - Introduction, Types & Creating It.

A view is an aggregated dictionary object. Aggregate object or complex object are objects, which are created by using object. E.g., Table is created using data element and domain. A view is created using tables.

A view is an imaginary table or virtual table. Using one or more tables can create a view. Physically, view does not contain any data. The view is filled dynamically during runtime.

View is mainly used to restrict or limit, access to information or data by employees, area, plant and so on. By using view, you can display information specific to a particular user or to their work or the information for which they have the right to access.

Types of Views:

R/3 System offers following types of views:
Database View: You can create this view on transparent table. It supports all the three operations like Selection, Projection & Join

Projection View: This type allows you to suppress some fields from the transparent table. This view is defined only with relational operator projection.

Help View: These views are exclusively used by the SAP help system. All relational operators are supported. These views are generated when the user presses F4 function key on the field on selection screen. You can see these views only with SAP help and not with open SQL statements.

Maintenance View: This type of view enables the maintenance of a group of related tables using SM30 Transaction, which is for extended table maintenance.

Creating View:

• From initial screen of data dictionary, enter the name of object i.e. view.
• Select view radio button and click on the push button.
• Dialog box is displayed for types of views.
• Select the view type.
• On the next screen, you have to pass following parameters.
• Short text
• In the table box you need to enter the table names, which are to be related.
• In join table box you need to join the two tables.
Click on the TABFIELD. System displays the dialog box for all the table fields and user can select the fields from this screen. These fields are displayed in the view fields box.
• Save and Activate: When the view is activated, view is automatically created in the underlying database system. As long as the table exists in the database, the view also exists (Unless you delete it).

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