AMDP (ABAP Managed Database Procedures) in CDS (Core Data Services) in SAP refers to a way to integrate native SQLScript (e.g., HANA procedures) directly within ABAP classes. It’s not a part of CDS views themselves, but is often used alongside ...
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Using an AMDP (ABAP Managed Database Procedure) inside another AMDP can be useful in specific scenarios, especially when trying to modularize complex logic or reuse database-side procedures. However, it comes with certain considerations and limitations. Code Reusability If you have logic encapsulated ...
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AT SELECTION-SCREEN OUTPUT Purpose:This event is triggered before the selection screen is displayed to the user. Use Case:To modify the selection screen dynamically — for example, to hide/show fields, enable/disable them, or set default values based on conditions.
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The Table Maintenance Generator allows authorized users or support staff to: Maintain data in custom or standard tables without writing ABAP code. Provide a standardized UI for table maintenance. Enforce data consistency and validation through events and screen logic. Use Case Description Maintain custom config tables Enter ...
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Purpose of TMG Events Events in TMG are used to: Validate data before it’s saved. Set default values when creating entries. Restrict access to rows based on user roles. Log changes or trigger custom logic. Enforce complex business rules beyond field-level checks. Where You Configure TMG Events Transaction: ...
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In SAP, an enhancement refers to a mechanism that allows you to add or change standard SAP behavior without modifying the original SAP code. Enhancements are essential for implementing custom business logic while keeping the SAP standard upgradeable and maintainable. Purpose ...
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Association An association is a declarative relationship between CDS entities (like foreign keys), defined using the association keyword. Key Characteristics: Lazy/Evaluated-on-demand: Data from the association is not fetched unless it is explicitly accessed using a path expression (like to_customer.name). Navigation-style ...
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FIELD-SYMBOLS are like pointers in other programming languages. They don’t store data themselves but rather point to memory locations dynamically. This is especially useful when you don’t know the field or structure you’re working with until runtime. Step 1: Declare an ...
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Exposed Associations An exposed association is one that is defined in a CDS view and is made available (exposed) to consumers of the view — such as other CDS views, analytical queries, or OData services. You define the association using the ...
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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