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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1. Open SQL ABAP’s database-independent SQL. Works on all supported DBs (HANA, Oracle, MSSQL, DB2, …). ABAP converts Open SQL statements into the database-specific SQL automatically. Ensures portability → same ABAP program runs regardless of underlying DB. Supports buffering (e.g., table buffers in SAP). Only a ...
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 ...
create a CDS view custom Entity: @EndUserText.label: ‘template Download’ @ObjectModel: { query: { implementedBy: ‘ABAP: ZCL_DOWN_TEMPLATE’ }
Here in this example, We are going to create CDS view with Case statement, here new field “DocText” will be added and value will be calculated based on below. case vbtyp ...
Example CDS view to join delivery table LIKP and LIPS on VBELN field and with LFART in where condition ------------------------------------------------------------ CDS VIEW: ------------------------------------------------------------ @AbapCatalog.viewEnhancementCategory: [#NONE] @AccessControl.authorizationCheck: #NOT_REQUIRED @EndUserText.label: 'CDS - Inner Join' @Metadata.ignorePropagatedAnnotations: true @ObjectModel.usageType:{ serviceQuality: #X, sizeCategory: ...
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 ...
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 ...
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
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, ...