ABAP Select data from SAP table CWVCMPLNCD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CWVCMPLNCD table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CWVCMPLNCD. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CWVCMPLNCD table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CWVCMPLNCD TYPE STANDARD TABLE OF CWVCMPLNCD,
      WA_CWVCMPLNCD TYPE CWVCMPLNCD,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CWVCMPLNCD> TYPE CWVCMPLNCD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CWVCMPLNCD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CWVCMPLNCD
  INTO TABLE IT_CWVCMPLNCD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWVCMPLNCD
*  INTO TABLE @DATA(IT_CWVCMPLNCD2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CWVCMPLNCD INDEX 1 INTO DATA(WA_CWVCMPLNCD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CWVCMPLNCD ASSIGNING <CWVCMPLNCD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWVCMPLNCD>-MANDT = 1.
<CWVCMPLNCD>-CHMLCMPLNCINFOUUID = 1.
<CWVCMPLNCD>-COMPLIANCEDATANAVGNLINKUUID = 1.
<CWVCMPLNCD>-PCPRPTYROOTTYPE = 1.
<CWVCMPLNCD>-CHMLCOMPOSITIONTYPE = 1.

ENDLOOP.

LOOP AT IT_CWVCMPLNCD INTO WA_CWVCMPLNCD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWVCMPLNCD-CHMLCMPLNCINFOTYPE, sy-vline,
  WA_CWVCMPLNCD-CHMLCMPLNCPRODISRESEARCHED, sy-vline,
  WA_CWVCMPLNCD-MATERIALISPRODUCED, sy-vline,
  WA_CWVCMPLNCD-MATERIALISSOLD, sy-vline,
  WA_CWVCMPLNCD-MATERIALISSOURCED, sy-vline,
  WA_CWVCMPLNCD-MATERIALISTRANSPORTED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWVCMPLNCD you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CWVCMPLNCD TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CWVCMPLNCD INTO WA_CWVCMPLNCD.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CWVCMPLNCD_STR, 
MANDT TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
COMPLIANCEDATANAVGNLINKUUID TYPE STRING,
PCPRPTYROOTTYPE TYPE STRING,
CHMLCOMPOSITIONTYPE TYPE STRING,
CHMLCMPLNCINFOTYPE TYPE STRING,
CHMLCMPLNCPRODISRESEARCHED TYPE STRING,
MATERIALISPRODUCED TYPE STRING,
MATERIALISSOLD TYPE STRING,
MATERIALISSOURCED TYPE STRING,
MATERIALISTRANSPORTED TYPE STRING,
CHMLCOMPOSITIONTYPENAME TYPE STRING,
PCPRPTYROOTTYPENAME TYPE STRING,
COMPLIANCEREQUIREMENT TYPE STRING,
CMPLRQVERSNAME TYPE STRING,
COMPLIANCEDATANAME TYPE STRING,
PCPRPTYINPROCPROCGSTS TYPE STRING,
PCPRPTYRELDPROCGSTS TYPE STRING,
PCPRPTYPROCGSTS TYPE STRING,
PCPRPTYPROCGSTSTEXT TYPE STRING,
PROCESSINGSTATUS TYPE STRING,
PROCESSORUSERNAME TYPE STRING,
RELEASEDBYUSERNAME TYPE STRING,
COMPLIANCEDATAUSERNAME TYPE STRING,
WORKVIEWGROUPNAME TYPE STRING,
SEMANTICOBJECT TYPE STRING,
SEMANTICOBJECTACTION TYPE STRING,
PCPRPTYNAVGNLINKPARAMNAME TYPE STRING,
PCPRPTYACTIVEINDPARAMNAME TYPE STRING,
PRODSTEWARDSHIPRESPUNIT TYPE STRING,
DNGRSGDSRESPUNIT TYPE STRING,
CHMLCMPLNCINTERNALNAME TYPE STRING,
CMPLRQPATTERN TYPE STRING,
PCPRPTYSEQUENCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWVCMPLNCD_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CWVCMPLNCD_STR-MANDT sy-vline 
WA_CWVCMPLNCD_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CWVCMPLNCD_STR-COMPLIANCEDATANAVGNLINKUUID sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYROOTTYPE sy-vline 
WA_CWVCMPLNCD_STR-CHMLCOMPOSITIONTYPE sy-vline 
WA_CWVCMPLNCD_STR-CHMLCMPLNCINFOTYPE sy-vline 
WA_CWVCMPLNCD_STR-CHMLCMPLNCPRODISRESEARCHED sy-vline 
WA_CWVCMPLNCD_STR-MATERIALISPRODUCED sy-vline 
WA_CWVCMPLNCD_STR-MATERIALISSOLD sy-vline 
WA_CWVCMPLNCD_STR-MATERIALISSOURCED sy-vline 
WA_CWVCMPLNCD_STR-MATERIALISTRANSPORTED sy-vline 
WA_CWVCMPLNCD_STR-CHMLCOMPOSITIONTYPENAME sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYROOTTYPENAME sy-vline 
WA_CWVCMPLNCD_STR-COMPLIANCEREQUIREMENT sy-vline 
WA_CWVCMPLNCD_STR-CMPLRQVERSNAME sy-vline 
WA_CWVCMPLNCD_STR-COMPLIANCEDATANAME sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYINPROCPROCGSTS sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYRELDPROCGSTS sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYPROCGSTS sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYPROCGSTSTEXT sy-vline 
WA_CWVCMPLNCD_STR-PROCESSINGSTATUS sy-vline 
WA_CWVCMPLNCD_STR-PROCESSORUSERNAME sy-vline 
WA_CWVCMPLNCD_STR-RELEASEDBYUSERNAME sy-vline 
WA_CWVCMPLNCD_STR-COMPLIANCEDATAUSERNAME sy-vline 
WA_CWVCMPLNCD_STR-WORKVIEWGROUPNAME sy-vline 
WA_CWVCMPLNCD_STR-SEMANTICOBJECT sy-vline 
WA_CWVCMPLNCD_STR-SEMANTICOBJECTACTION sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYNAVGNLINKPARAMNAME sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYACTIVEINDPARAMNAME sy-vline 
WA_CWVCMPLNCD_STR-PRODSTEWARDSHIPRESPUNIT sy-vline 
WA_CWVCMPLNCD_STR-DNGRSGDSRESPUNIT sy-vline 
WA_CWVCMPLNCD_STR-CHMLCMPLNCINTERNALNAME sy-vline 
WA_CWVCMPLNCD_STR-CMPLRQPATTERN sy-vline 
WA_CWVCMPLNCD_STR-PCPRPTYSEQUENCE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.