- What is logical database ?
- Abap logical database example
- Abap logical database selection screen
- Abap logical database PCH
- Abap logical database PNP
- Abap logical database transaction
Showing posts with label logical database. Show all posts
Showing posts with label logical database. Show all posts
Monday, March 26, 2012
Logical database
What is logical database ?
A logical database provides read-only access to a group of related tables to an ABAP/4 program.
Advantages:
i)check functions which check that user input is complete, correct,and plausible.
ii)Meaningful data selection.
iii)central authorization checks for database accesses.
iv)good read access performance while retaining the hierarchical data view determined by the application logic.
Disadvantages:
i)If you donot specify a logical database in the program attributes,the GET events never occur.
ii)There is no ENDGET command,so the code block associated with an event ends with the next event statement (such as another GET or an END-OF-SELECTION).
Advantages:
i)check functions which check that user input is complete, correct,and plausible.
ii)Meaningful data selection.
iii)central authorization checks for database accesses.
iv)good read access performance while retaining the hierarchical data view determined by the application logic.
Disadvantages:
i)If you donot specify a logical database in the program attributes,the GET events never occur.
ii)There is no ENDGET command,so the code block associated with an event ends with the next event statement (such as another GET or an END-OF-SELECTION).
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