Here, we will discuss all the differences that are being asked in every ABAP Interviews TopicCategoryViews Local Class Vs Global ClassABAP Differences Function Module Vs ClassABAP Differences Instance Method Vs Static MethodABAP Differences Static Attribute Vs Instance AttributeABAP Differences Constructor Vs Class ConstructorABAP Differences Interface Vs Abstract ClassABAP Differences Call by Value Vs Call by ReferenceABAP Differences GET CURSOR Vs HIDE AREAABAP Differences SELECT-OPTIONS Vs ParametersABAP Differences SAP Memory VS ABAP MemoryABAP Differences Narrow Casting Vs Wide CastingABAP Differences Procedural Programming Vs OOPs ABAP Differences Exception Vs Event HandlerABAP Differences Append Vs InsertABAP Differences Domain Vs Data ElementABAP Differences Check Table Vs Value TableABAP Differences Data Class Vs Delivery ClassABAP Differences Static Breakpoint Vs Dynamic BreakpointABAP Differences Primary Key Vs Foreign KeyABAP Differences Structure Vs Work AreaABAP Differences Singleton Vs Static methodABAP Differences Update function module Vs Regular function moduleABAP Differences BAPI Vs RFCABAP Differences User Exits Vs Customer ExitsABAP Differences BDC Vs BAPI Vs ODataABAP Differences OOPs VS Function moduleABAP Differences Refresh Vs clear statementABAP Differences Cursor Vs Select statementABAP Differences Open Cursor Vs Fetch CursorABAP Differences BADI Vs EnhancementABAP Differences Singleton class Vs Persistent classABAP Differences Enhancement point Vs Enhancement spotABAP Differences Web Dynpro ABAP Vs Web Dynpro JavaABAP Differences SAP Smart Forms Vs SAP ScriptABAP Differences