Feature Row Store Column Store Data Layout Row by row Column by column Best Use Case OLTP (transactions) OLAP (analytics, reporting) Read Performance Good for full row reads Excellent for column-specific reads Write Performance Fast for row-level writes Slower for frequent updates/inserts Compression Lower Higher Aggregations & Filters Slower Much faster
SAP EWM Help Latest Questions
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A final class is declared using the keyword FINAL in its definition. It’s used when you want to prevent further inheritance of the class, ensuring its behavior cannot be modified through subclassing. Why Use a Final Class?
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Feature OLTP OLAP Full Form Online Transaction Processing Online Analytical Processing Purpose Run daily operations Analyze and report on business data Operation Type Short, frequent transactions Complex queries, aggregations Data Volume Large number of small transactions Smaller number of large queries Performance Focus Speed of write operations Speed of read/analysis Data Structure Highly normalized Often denormalized (e.g., star schema) Examples Insert/update orders, ...
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A Custom Entity in RAP is like a virtual data model — it does not persist data in a DB table, but fetches it from logic (e.g., CDS views, APIs, function modules, or custom code). It is exposed via a behavior ...
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Aspect DDIC View (ABAP Dictionary View) CDS View (Core Data Services View) Definition Tool Created using SE11 (Graphical interface) Created using ADT (Eclipse) with SQL-like DDL syntax Technology Base Classic SAP NetWeaver Modern SAP HANA / S/4HANA Definition Style GUI-based definition (drag-and-drop style) Text-based, code-centric with annotations Join Support Basic joins (Inner, Outer) Advanced ...
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Method overriding allows a subclass to provide a new implementation of a method that is already defined in the superclass. The method in the subclass must use the REDEFINITION keyword. When to use it: When a general method in a ...
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It is a file (with .behavior extension) that specifies the business behavior of an entity (CDS view), and it controls: Which operations are allowed Which fields are modifiable Which validations or determinations are triggered Custom logic, like actions Key Purposes of Behavior Definition Function Description Enable CRUD operations Define ...
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The code handles EWM Outbound Delivery processing in SAP.It retrieves ERP delivery information, maps it to the EWM warehouse, locks and reads the delivery, updates extension fields (blocks, texts), and finally saves or rolls back changes with proper error ...