What are the authorization checks available in logical database? | SAP-ABAP

   Authorization check is placed on the subroutines and event blocks. AUTHORITY CHECK statement is 1 used to place the authorization checks.
=>    Subroutines in the database program:
   ?   PAI
   ?    AUTHORITY_CHECK_<table>
=>    Event blocks in the executable program:
?    AT SELECTION-SCREEN
?    AT SELECTION-SCREEN ON <fname>
?    AT SELECTION-SCREEN ON END OF <fname>
?    GET <table>