The main components of logical database are explained as follows:
=> Structure-- The structure defines the data view of the logical database. It determines the database table which can be accessible. It ascertains the behavior of the logical database and structure of other components at run time. The hierarchical structure of logical database decides the sequence in which data is accessed by users.
=> Selection part-- The selection part is used to define the input fields for the data selection. The data is displayed on the selection screen at the run time environment on the execution of program that is linked to logical database. Selection can be changed according to the requirement.
=> Database Program-- The database is a container of the ABAP statements used to retrieve the data and send it to the user. It contains special subroutines which are called in predefined sequence in the run time environment by the reporting processor.
=> Structure-- The structure defines the data view of the logical database. It determines the database table which can be accessible. It ascertains the behavior of the logical database and structure of other components at run time. The hierarchical structure of logical database decides the sequence in which data is accessed by users.
=> Selection part-- The selection part is used to define the input fields for the data selection. The data is displayed on the selection screen at the run time environment on the execution of program that is linked to logical database. Selection can be changed according to the requirement.
=> Database Program-- The database is a container of the ABAP statements used to retrieve the data and send it to the user. It contains special subroutines which are called in predefined sequence in the run time environment by the reporting processor.
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