Subject: RE: have a quick discussion about why the CDS view has a bad performance displayed in ST05 or SAT but the trace displayed in HANA studio shows a good performance Hi Heiko, The HANA colleague in the incident told me the reason of this difference. I copied the reply to this mail...
此为最简单的在HANA STUDIO上创建ABAP CDS的例子,只说明简单创建过程序,前提是已安装好了HANA STUDIO ,并创建了ABAP的工程项目,连接到了你SAP ABAP系统,如你还没有成功到这个步骤,请先查看, 1.HANA STUDIO 连接ABAP 开发 2.HANA STUDIO如何创建ABAP CDS Hello everyone in this ABAP on HANA tutorial you will...
On the other hand, to create a DDL source like creating a CDS view, SAP HANA Studio is the required IDE for developers. After SAP HANA Studio started, you can connect to target SAP system where you want to create the CDS view. Add the ABAP Package into the Project Explorer window of ...
另一方面,SAP HANA视图是在数据库层创建的,它们存在于HANA数据库中。 语法:SAP CDS视图使用ABAP的扩展SQL语法,而SAP HANA视图使用SQL/SQL脚本。 性能优化:SAP CDS视图在ABAP服务器上进行优化,而SAP HANA视图在HANA数据库上进行优化。因此,SAP HANA视图可以利用HANA数据库的全部功能,如并行处理和列式存储,而SAP CDS...
另一方面,如果您想在SAP HANA Studio中使用视图,并且希望利用HANA数据库的高级功能,那么您可能会创建一个SAP HANA视图,如下所示: CREATE VIEW "SALES" AS SELECT "SALES_ORDER"."SALES_ORDER_ID", "BIZ_PARTNER"."FIRST_NAME", "BIZ_PARTNER"."LAST_NAME", SUM("SALES_ORDER"."GROSS_AMOUNT_IN_TRANS_CUR...
另一方面,如果您想在SAP HANA Studio中使用视图,并且希望利用HANA数据库的高级功能,那么您可能会创建一个SAP HANA视图,如下所示: CREATE VIEW "SALES" ASSELECT "SALES_ORDER"."SALES_ORDER_ID","BIZ_PARTNER"."FIRST_NAME","BIZ_PARTNER"."LAST_NAME",SUM("SALES_ORDER"."GROSS_AMOUNT_IN_TRANS_CURRENCY"...
(3) Performance Gap between ST05 trace and the planViz opened in HANA Studio I have once observed a “strange” behavior: When I perform the query on my CDS view with two search parameters: product id and sold to party name, it will take on average 16~18 seconds to finish the query....
SAP Hana CDS 开发简介 一、CDS简介 二、CDS VIEW 创建模板 1、定义单数据源的简单视图 2、定义两个数据源的JOIN视图 3、定义具有关联关系的视图 4、定义父类关联关系的视图 5、定义单个入参的视图 6、定义简单的投影视图实体 7、定义继承的视图
1.打开在HANA STUDIO的右上角,点击“OPEN perspective ” ,并在其中选择”SAP HANA Development”,此后,会打开 Repositories的控制台,如下图, 2.此在在选择菜单:NEW->Other,并选择SAP HANA->DDL Source File,就能创建CDS了,同理在此选择XS Project,也就能创建XS项目了。
@AbapCatalog.sqlViewName:'ZDEMO_CDS_PFCG'@AccessControl.authorizationCheck: #CHECK@EndUserText.label:'Demo access pfcg'defineviewZdemo_Access_Pfcgasselectfromscarr {keycarrid, carrname, currcode, url }; 3,现在,如果在HANA Studio中打开数据预览,我们将可以看到所有记录。访问控制目前还不存在。