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...
A CDS table function returns a tabular result set. This can be used (like everyCDS entity) as a data source in other CDS entities or inOpen SQL read statements. The prerequisite for use is that the specified AMDP function implementation exists and is active. Notes Table functions constitute ...
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...
ClientDependent Defines client handling when Open SQL is used to access the CDS table function (obsolete). true: The CDS table function is client-specific. When accessed using SELECT, automatic client handling is performed. false: The CDS table function is a cross-client table function. No auto...
如我们所知,HANA CDS只支持HANA数据库,ABAP CDS理论上支持多种数据库供应商,结果是,ABAP CDS相比之下要少一些功能。因此,在某些情况下,无法使用ABAP CDS解决问题时,可以使用一种变通的方法,即通过ABAP Managed Database Procedures (AMDP)创建ABAP CDS Table Function。CDS(Core Data Service)是SAP的战略性的技术...
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; } ...
自从大家习惯使用CDS以后(不过我这里就是要吐槽一下,有一个项目中甲方(一个新兴的半导体公司)说他们的人不会维护,不让我用CDS,感觉他们要和历史的车轮做对抗啊),大家都了解这个CDS以及Table Function,甚…
ABAP CDS 函数 The following table shows the SQL functions for strings supported by ABAP CDS and Open SQL. The last two columns indicate where a function can be used. The following can be specified as the arguments arg: Literals of a suitable type. The literal can be prefixed with the ...
Annotation Meaning Scope Framework DefaultAggregation see CDS Annotations Element see CDS AnnotationsEndUserText-Annotations Annotation Meaning Scope Framework EndUserText.label Texts, short text connected to translation Element Parameter Table Function View ABAP EndUserText.quickInfo Texts, tooltip connected ...
code1 CLASS zcl_demo_flight_calculation DEFINITION PUBLIC FINAL CREATE PUBLIC . PUBLIC SECTION. INTERFACES: if_amdp_marker_hdb. CLASS-METHODS: get_details FOR TABLE FUNCTION ZDEMO_FLIGHT_CDS_TF. PROTECTED SECTION. PRIVATE SECTION. ENDCLASS. CLASS ZCL_DEMO_FLIGHT_CALCULATION IMPLEMENTATION. * <SIGN...