在常规的ABAP CDS内我们可以使用CONCAT函数,但是使用它的时候,我们需要定义固定数量的字段,既然CDS视图不能实现此处需要的处理动态逻辑,要如何处理呢? 这是一个使用ABAP CDS Table Function的绝佳场景,因为我们可以使用简单的数据库函数STRING_AGG(String Aggregation)。这个功能在SQL Script中可用,但是目前还是不支持ABAP...
The CDS source code of a CDS table function does not need to have the same name as the CDS table function, but it is advisable to use the name of the CDS table function. After a piece of CDS source code is transported, the combination of its name and the name of the CDS table fun...
注意:table function应永远有返回参数,所以记着在最后一个SELECT语句前放一个RETURN语句。另外,注意我们将字段名转换为前文中ABAP CDS Table Function声明的字段名,如果你没有提供一个合适的别名,激活的时候编译器会给出提示。 类ZCL_FLIGHTS_DEMO_CDS的最终版本是这样的: CLASS zcl_flights_demo_cds DEFINITION PUB...
ENDCLASS. code1 code 2 define table function zdemo_flight_cds_tf with parameters iv_carrid : s_carr_id returns { mandt: s_mandt; carrid: s_carr_id; connid: s_conn_id; countryfr: land1; cityfrom: s_from_cit; airpfrom: s_fromairp; countryto: land1; cityto: s_to_city; ...
define table function DEMO_CDS_GET_SCARR_SPFLI_INPCL with parameters @Environment.systemField: #CLIENT clnt:abap.clnt, carrid:s_carr_id returns { client:s_mandt; carrname:s_carrname; connid:s_conn_id; cityfrom:s_from_cit; cityto:s_to_city; } ...
The obsolete annotation @ClientDependent cannot be specified together with the annotation @ClientHandling.type.ClientHandling Annotations Control of the client handling for the CDS table function. Annotation Meaning Annotation Values Default Value if Not Used Default Value if Used Without Value Client...
A CDS entity can be used with input parameters as one of the following: Data source or in a path expression of a different CDS view as a data source of a SELECT statement from Open SQL in ABAP In these cases, each input parameter must be assigned a suitable actual parameter whose value...
CDS Table Functions Implemented by AMDP , while AMDP-procedures can be called asABAPmethods. In order to create a CDS tablefunction, you... CL_DEMO_AMDP_FUNCTIONS_INPCL=>GET_SCARR_SPFLI_FOR_CDS; A CDS tablefunctionhas input parameters ...
If you access a CDS view or CDS table function with parameters annotated as such in Open SQL, you can (and for #CLIENT you even must) leave away the explicit parameter passing. Open SQL implicitly passes the contents of the respective system fields for you! Example View @AbapCatalog.sqlVie...
Suitable fields of a data source data_source of the current CDS view. Path expressions that identify a suitable field of a data source data_source. Input parameters from the parameter list parameter_list. The following predefined functions and expressions (if they return a matching type): ...