If you search the web or SCN for CDS, SAP's Core Data Services, you can easily find statements like " Core data services (CDS) is an infrastructure for defining and
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I find the problem comes fromupdate_status(). It seems like, at times, the CDS API returns a 500 (perhaps the requests are coming in a bit too fast to the server). When this happens, the resultingct$stateobject is thereforeNULL, which then raises an error on the subsequentifstatements...
Special rules apply to associations inSELECTstatements joined withUNION. Cyclical dependenciesshould be avoided when using associations to prevent problems occurring in mass activations of CDS entities. Addition 1 ... [min..max] Effect Defines the cardinality of the target data source of a CDS view...
CDS data definitions are made using the CDS DDL of the ABAP CDS. They define the following CDS entities. These units can be accessed as a data type (in ABAP programs) and as a data source (in Open SQL read statements). CDS views CDS entities, which from a technical perspective are ...
Also, as the value is stable (a hash of the semantic key fields ID and locale), it works with UPSERT statements. Changed Default outbox configuration (overridable via cds.env.requires.outbox = { ... }): kind changed to persistent-outbox (was in-memory-outbox) parallel changed to true ...
The access conditions produced by the rules above are transformed internally to selection statements by the ABAP runtime environment. In ABAP SQL reads, the additional conditions can be viewed in the SQL Trace tools (transaction ST05). The internal implementation can be made using WHERE conditions ...
statements joining more than 3 tables. If you now embark on creating CDS views with dozens of underlying tables you should be aware of the complexity this can create, and you should have quite some SQL expertise to understand what it means to the database to process complex SQL statements. ...
A CDS table function is defined using the ABAP CDS statementDEFINE TABLE FUNCTIONand can be used as the data source in Open SQL read statements. Each CDS table function includes the following components: The actualCDS entityof the table function that is generated in the ABAP Dictionary ...
or Open SQL statements can use it in their path expressions. When a CDS view is activated with path expressions, every association specified here is transformed to a join expression. The source data source represents the left side and the target data source represents the right side. The ON ...