How to Find CDS Views Based on source table provided to ABAP Executable Program
This blog is for anyone who is developing CDS views, they can check CDS views already available in the system based on source tables provided to executable ABAP Program.
Based on the findings, CDS view already available can be utilized instead of developing new CDS views.
When many developers are working, we will create lot of duplicate objects for the same purpose –
It will be helpful in effective resource utilization .
Avoid SAP system creating lot of duplicate objects that will cause more memory usage and system performance.
This program is written in ABAP 7.5 and will be helpful in writing new way of coding .
- Create executable program using Tcode SE38
2. Code as shown below in screen shots
Pathway-> Eclipse Source Code Library
Below is the source code
REPORT ZCDS_VIEW. ***Begin of Selection Screen PARAMETERS: p_table TYPE vibastab. ***End of Selection Screen ***Begin of Data declaration TYPES: BEGIN OF ty_cdsview, table TYPE vibastab, cdsview(40) TYPE c, END OF ty_cdsview, lt_cdsview TYPE STANDARD TABLE OF ty_cdsview WITH DEFAULT KEY. ***End of Data declaration ***To get the View name based on the table SELECT viewname,as4local,objpos,as4vers,tabname FROM dd27s INTO TABLE @DATA(lt_dd27s) WHERE tabname = @p_table. IF lt_dd27s IS NOT INITIAL. SELECT * FROM acm_ddlstbviw_1r INTO TABLE @DATA(lt_cds) FOR ALL ENTRIES IN @lt_dd27s WHERE view_name = @lt_dd27s-viewname. DATA(lt_cdsview1) = VALUE lt_cdsview( FOR ls_dd27s IN lt_dd27s FOR ls_cds IN lt_cds FROM line_index( lt_cds[ view_name = ls_dd27s-viewname ] ) WHERE ( view_name = ls_dd27s-viewname ) LET ls_final = VALUE ty_cdsview( table = ls_dd27s-tabname cdsview = ls_cds-ddls_name ) IN ( CORRESPONDING #( BASE ( ls_final ) ls_dd27s ) ) ). ENDIF. ***Unique records based table and View data(list_of_cdsviews) = value lt_cdsview( FOR GROUPS gr1 of ls_cdsview1 in lt_cdsview1 GROUP BY ( table = ls_cdsview1-table cdsview = ls_cdsview1-cdsview count = group size ) ASCENDING ( table = gr1-table cdsview = gr1-cdsview ) ). DATA(lv_count) = lines( list_of_cdsviews ). WRITE:/ 'no.of records:', lv_count. ***Display the data cl_demo_output=>display_data( list_of_cdsviews ).
This ABAP program will be helpful to avoid creating duplicate CDS views with same functionality and purpose
This coding show new way of writing ABAP code
Sorry, I just couldn't pass this opportunity to point out the irony that there are like 10 blog posts already on this subject. If only there was some kind of program to check for duplicates. To avoid, you know, Internet memory usage and system performance. Oh wait.
How to Find the Table/CDS Views Name by giving field Name in SAP ECC and SAP S/4 HANA - I think this one pretty much nailed it, ALV FM is bad but otherwise seems like a more robust program. Might want to take a look.
How to find CDS Views by just knowing the Field name in SAP ECC and SAP S/4 HANA? This one has links to further posts going back to 2019
These are just the top link in the handy-dandy Internet duplicate checker thingy.
Thank you Jelena for sharing me more information and I didn't use any FM for ALV and it is SAP standard class CL_DEMO_OUTPUT