What are logical databases? What are the advantages/ disadvantages of logical databases?

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Category: ABAP

Published on Thursday, 02 July 2009 02:30

Written by anon.

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To read data from a database tables we use 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. dis advantages: i)If you do not 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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