使用ABAP Development Tool, 我们可以选择两种不同的方式来实现数据库过程。第一种，即本文标题提及的AMDP, 第二种为数据库过程代理(Database Procedure Proxy), 不在本文讨论范围之内。AMDP, 顾名思义，即在ABAP层进行HANA数据库过程的实现和生命周期(lifecycle)的管理。开发人员通过位于ABAP层的ABAP Development Too...
AMDP类的实现 CLASSCL_AMDP_EXAMPLEIMPLEMENTATIONMETHODSprocess// Write ABAP source code here//…ENDMETHODMETHODexecuteBYDATABASEPROCEDURE //AMDP method marker//FORHDB //Database platform//LANGUAGESQLScript //Database language//[OPTIONSREAD-ONLY] //Database-specific options//USINGname1 name2 etc...
https://blogs.sap.com/2013/12/10/an-example-of-amdp-abap-managed-database-procedure-in-740/ 看个具体的例子,还是使用广大ABAP开发人员喜闻乐见的SFLIGHT系列模型。 本文例子的完整代码,可以通过点击文末的“阅读原文”获得。 首先,AMDP类只能在ABAP Development Tool里进行开发,在SAP GUI里可以用只读的方...
SP06). When forcing the editor to be open (by a modification in method class_implements_amdp_marker, class CL_OO_ABSTRACT_CLASS_TOOL), the syntax check is performed for language SQLScript, with the expected error messages coming from HANA. So there must be another reason why the...
Eclipsetoprocess DDL sources. 而AMDP,就是一个特殊的ABAP类,能够在ABAP方法里执行HANA的SQLScript或者存储过程。SAPGUI里可以查看AMDP的...Jerry和SAP成都研究院一些新同事聊天时,谈到ABAP和SAPGUI这个话题。很多新同事在加入SAP成都之前,是做Java和C++开发的,习惯了Eclipse/IntelliJ IDEA ...
(B.t.w., see AMDP, Comparison of SQLScript with Open SQL for a closer look at the performance results of that example; The bad ABAP results above come from nested SELECT loops ...). Conclusion The methods of CL_DEMO_OUTPUT can serve for quick and dirty outputs in tests or in demo ...
http://scn.sap.com/community/abap/blog/2013/12/10/an-example-of-amdp-abap-managed-database-procedure-in-740 大方向是这样的哈,CDS可以很容易的调用Table function(跟调用CDSview一样),然后table function具体的实现是通过AMDP实现的。 比如下面这个。
For CDS table function and AMDP implementation, please read this blogMy CDS view self study tutorial – Part 6 consume table function in CDS viewfor more detail. Z_i_Order_View @AbapCatalog.sqlViewName:'ziorder'@AbapCatalog.compiler.compareFilter:true@...
ABAP Managed Database Procedures (AMDP) Covers ABAP Managed Database Procedures (AMDP): AMDP Procedures and AMDP Functions (including CDS Table Functions) zcl_demo_abap_amdp Program Flow Logic Deals with control structures (IF, CASE), loops (DO, WHILE) and exception handling zcl_demo_abap_prog...
https://blogs.sap.com/2014/08/12/an-example-to-help-you-understand-how-does-adt-work/ 比如在ADT里对ABAP源代码做语法检查,实际上就是把整段代码做一个Base64编码,然后通过HTTP Post发送到后台,由后台执行对应的检查函数,结果通过HTTP响应返回给ADT前端。