ABAP Select data from SAP table PAOBJ_CVCD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAOBJ_CVCD 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 PAOBJ_CVCD. 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 PAOBJ_CVCD 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_PAOBJ_CVCD TYPE STANDARD TABLE OF PAOBJ_CVCD,
      WA_PAOBJ_CVCD TYPE PAOBJ_CVCD,
      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: <PAOBJ_CVCD> TYPE PAOBJ_CVCD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAOBJ_CVCD
*  INTO TABLE @DATA(IT_PAOBJ_CVCD2).
*--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_PAOBJ_CVCD INDEX 1 INTO DATA(WA_PAOBJ_CVCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAOBJ_CVCD>-MANDT = 1.
<PAOBJ_CVCD>-CHARCVALUECOMBINATIONUUID = 1.
<PAOBJ_CVCD>-PRODUCTALLOCATIONOBJECTUUID = 1.
<PAOBJ_CVCD>-PRODUCTALLOCATIONOBJECT = 1.
<PAOBJ_CVCD>-PRODALLOCCHARC01 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAOBJ_CVCD-PRODALLOCCHARC02, sy-vline,
  WA_PAOBJ_CVCD-PRODALLOCCHARC03, sy-vline,
  WA_PAOBJ_CVCD-PRODALLOCCHARC04, sy-vline,
  WA_PAOBJ_CVCD-PRODALLOCCHARC05, sy-vline,
  WA_PAOBJ_CVCD-PRODALLOCCHARC06, sy-vline,
  WA_PAOBJ_CVCD-PRODALLOCCHARC07, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAOBJ_CVCD 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_PAOBJ_CVCD 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_PAOBJ_CVCD INTO WA_PAOBJ_CVCD.


*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.

*Conversion exit ALPHA, internal->external for field PRODUCTALLOCATIONOBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAOBJ_CVCD-PRODUCTALLOCATIONOBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAOBJ_CVCD-PRODUCTALLOCATIONOBJECT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_PAOBJ_CVCD_STR, 
MANDT TYPE STRING,
CHARCVALUECOMBINATIONUUID TYPE STRING,
PRODUCTALLOCATIONOBJECTUUID TYPE STRING,
PRODUCTALLOCATIONOBJECT TYPE STRING,
PRODALLOCCHARC01 TYPE STRING,
PRODALLOCCHARC02 TYPE STRING,
PRODALLOCCHARC03 TYPE STRING,
PRODALLOCCHARC04 TYPE STRING,
PRODALLOCCHARC05 TYPE STRING,
PRODALLOCCHARC06 TYPE STRING,
PRODALLOCCHARC07 TYPE STRING,
PRODALLOCCHARC08 TYPE STRING,
PRODALLOCCHARC09 TYPE STRING,
PRODALLOCCHARC10 TYPE STRING,
CHARCVALCOMBNCHANGEMODE TYPE STRING,
PRODALLOCATIONACTIVATIONSTATUS TYPE STRING,
PRODALLOCCHARCCONSTRAINTSTATUS TYPE STRING,
TARGETCHARCVALCOMBINATIONUUID TYPE STRING,
CHARCVALAUTHZNGROUP TYPE STRING,
PRODALLOCCHARCVALUECOMBNCMNT TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAOBJ_CVCD_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_PAOBJ_CVCD_STR-MANDT sy-vline 
WA_PAOBJ_CVCD_STR-CHARCVALUECOMBINATIONUUID sy-vline 
WA_PAOBJ_CVCD_STR-PRODUCTALLOCATIONOBJECTUUID sy-vline 
WA_PAOBJ_CVCD_STR-PRODUCTALLOCATIONOBJECT sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC01 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC02 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC03 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC04 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC05 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC06 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC07 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC08 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC09 sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARC10 sy-vline 
WA_PAOBJ_CVCD_STR-CHARCVALCOMBNCHANGEMODE sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCATIONACTIVATIONSTATUS sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARCCONSTRAINTSTATUS sy-vline 
WA_PAOBJ_CVCD_STR-TARGETCHARCVALCOMBINATIONUUID sy-vline 
WA_PAOBJ_CVCD_STR-CHARCVALAUTHZNGROUP sy-vline 
WA_PAOBJ_CVCD_STR-PRODALLOCCHARCVALUECOMBNCMNT sy-vline 
WA_PAOBJ_CVCD_STR-ACTIVEUUID sy-vline 
WA_PAOBJ_CVCD_STR-HASACTIVEENTITY sy-vline 
WA_PAOBJ_CVCD_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_PAOBJ_CVCD_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_PAOBJ_CVCD_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_PAOBJ_CVCD_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_PAOBJ_CVCD_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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