ABAP Select data from SAP table CRTLPROMOBJPGAHD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRTLPROMOBJPGAHD 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 CRTLPROMOBJPGAHD. 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 CRTLPROMOBJPGAHD 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_CRTLPROMOBJPGAHD TYPE STANDARD TABLE OF CRTLPROMOBJPGAHD,
      WA_CRTLPROMOBJPGAHD TYPE CRTLPROMOBJPGAHD,
      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: <CRTLPROMOBJPGAHD> TYPE CRTLPROMOBJPGAHD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRTLPROMOBJPGAHD
*  INTO TABLE @DATA(IT_CRTLPROMOBJPGAHD2).
*--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_CRTLPROMOBJPGAHD INDEX 1 INTO DATA(WA_CRTLPROMOBJPGAHD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRTLPROMOBJPGAHD>-MANDT = 1.
<CRTLPROMOBJPGAHD>-RETAILPROMOTION = 1.
<CRTLPROMOBJPGAHD>-RETAILPROMOTIONDISCOUNT = 1.
<CRTLPROMOBJPGAHD>-RETAILPROMNDISCOUNTLEVEL = 1.
<CRTLPROMOBJPGAHD>-RETAILARTICLEHIERARCHY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRTLPROMOBJPGAHD-RETAILARTICLEHIERARCHYNODE, sy-vline,
  WA_CRTLPROMOBJPGAHD-RETAILARTICLEHIERARCHYNODENAME, sy-vline,
  WA_CRTLPROMOBJPGAHD-MATERIALSEASONCATEGORY, sy-vline,
  WA_CRTLPROMOBJPGAHD-MATERIALSEASONYEAR, sy-vline,
  WA_CRTLPROMOBJPGAHD-RETAILPROMNDISCOUNTCURRENCY, sy-vline,
  WA_CRTLPROMOBJPGAHD-RETAILPROMOTIONDISCOUNTPERCENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRTLPROMOBJPGAHD 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_CRTLPROMOBJPGAHD 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_CRTLPROMOBJPGAHD INTO WA_CRTLPROMOBJPGAHD.


*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 RETAILPROMOTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRTLPROMOBJPGAHD-RETAILPROMOTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRTLPROMOBJPGAHD-RETAILPROMOTION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MATERIALSEASONYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CRTLPROMOBJPGAHD-MATERIALSEASONYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRTLPROMOBJPGAHD-MATERIALSEASONYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRTLPROMOBJPGAHD-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRTLPROMOBJPGAHD-QUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RETAILPROMNDISCOUNTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRTLPROMOBJPGAHD-RETAILPROMNDISCOUNTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRTLPROMOBJPGAHD-RETAILPROMNDISCOUNTUNIT.
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_CRTLPROMOBJPGAHD_STR, 
MANDT TYPE STRING,
RETAILPROMOTION TYPE STRING,
RETAILPROMOTIONDISCOUNT TYPE STRING,
RETAILPROMNDISCOUNTLEVEL TYPE STRING,
RETAILARTICLEHIERARCHY TYPE STRING,
RETAILARTICLEHIERARCHYNODE TYPE STRING,
RETAILARTICLEHIERARCHYNODENAME TYPE STRING,
MATERIALSEASONCATEGORY TYPE STRING,
MATERIALSEASONYEAR TYPE STRING,
RETAILPROMNDISCOUNTCURRENCY TYPE STRING,
RETAILPROMOTIONDISCOUNTPERCENT TYPE STRING,
QUANTITYUNIT TYPE STRING,
RETAILPROMNDISCOUNTAMOUNT TYPE STRING,
RETAILPROMNDISCOUNTUNIT TYPE STRING,
RETAILPROMOTIONDISCOUNTSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRTLPROMOBJPGAHD_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_CRTLPROMOBJPGAHD_STR-MANDT sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMOTION sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMOTIONDISCOUNT sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMNDISCOUNTLEVEL sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILARTICLEHIERARCHY sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILARTICLEHIERARCHYNODE sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILARTICLEHIERARCHYNODENAME sy-vline 
WA_CRTLPROMOBJPGAHD_STR-MATERIALSEASONCATEGORY sy-vline 
WA_CRTLPROMOBJPGAHD_STR-MATERIALSEASONYEAR sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMNDISCOUNTCURRENCY sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMOTIONDISCOUNTPERCENT sy-vline 
WA_CRTLPROMOBJPGAHD_STR-QUANTITYUNIT sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMNDISCOUNTAMOUNT sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMNDISCOUNTUNIT sy-vline 
WA_CRTLPROMOBJPGAHD_STR-RETAILPROMOTIONDISCOUNTSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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