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The Persistence Service lets the ABAP programmer work with relational database data in an object-oriented way. So we're talking here about an [ORM| http://en.wikipedia.org/wiki/Object-relational_mapping] framework.
Understanding Persistence Service
Step 1 Create ABAP package Open ABAP Development Tools (ADT) and select your ABAP Cloud Project you created in Create an SAP BTP ABAP Environment Trial User. Right-click on ZLOCAL and select New > ABAP Package. Create a new ABAP package: Name: ZTRAVEL_APP_XXX Description: Package for travel XXX Superpackage: ZLOCAL Check Add to favorite packages.
Persistent YouTube
Figure 1 Creating the Persistent Class Persistent classes are like normal classes and are created using the class builder (se24). The only difference while creating a persistent class is the tick mark Persistent Class, which identifies the class as a persistent class.
Active Persistent Students Watching Videos in Class Stock Photo Image of lesson, laptop 89637958
Creating a Persistent Class (SAP Library - ABAP Workbench Tools) Relevancy Factor: 20.0. You need to use the prefix CL_ (or a corresponding naming convention in the customer namespace) for Persistent Class es. The auxiliary classes use the same convention.
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The Persistence Service is a software layer that manages persistent objects. This software layer consists of a general part and a class-specific part. It is made up of global classes and interfaces from the Class Library. The class-specific part is specially generated for each persistent class.
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Persistent class ABAP Program stays in the local ABAP memory for the session only till the runtime of that program. This data lives only as long as its context - that is, as long as its associated procedure (for local procedure data); its object (for attributes of classes); or its program (for global program data).
ABAP debugging Sapsharks
Persistence Classes: In Class Builder, there is an option to create a "Persistent Class" and once created, the system automatically creates a Class Actor or Class Agent which has the following inheritance relationships. The moment you create a Persistent Class, workbench also generates two additional classes: ZCB_PERSIST_SFLIGHT as the Base Class
Object Oriented ABAP [4] Exception Handling Discovering ABAP
To create a persistent class from the initial screen of the Object Navigator (SE80): Select the category Class/Interface in from the object list. Enter the name of the new class according to the naming conventions . Confirm your entries with ENTER . Confirm that you want to create the class. The system displays the Create Class. dialog box.
Persistent YouTube
1 Here is a dynamic solution, query_data is the result returned from the call to get_persistent_by_query ( ). In the end the data will be stored in structured table