ABAP Select data from SAP table CPO_SELLING_DOC_DATA_TYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPO_SELLING_DOC_DATA_TYPE
*  INTO TABLE @DATA(IT_CPO_SELLING_DOC_DATA_TYPE2).
*--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_CPO_SELLING_DOC_DATA_TYPE INDEX 1 INTO DATA(WA_CPO_SELLING_DOC_DATA_TYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPO_SELLING_DOC_DATA_TYPE>-BTYPA = 1.
<CPO_SELLING_DOC_DATA_TYPE>-BLNRA = 1.
<CPO_SELLING_DOC_DATA_TYPE>-BPOSA = 1.
<CPO_SELLING_DOC_DATA_TYPE>-BETNA = 1.
<CPO_SELLING_DOC_DATA_TYPE>-WERKA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPO_SELLING_DOC_DATA_TYPE-MATNR, sy-vline,
  WA_CPO_SELLING_DOC_DATA_TYPE-MEINS, sy-vline,
  WA_CPO_SELLING_DOC_DATA_TYPE-PEINA, sy-vline,
  WA_CPO_SELLING_DOC_DATA_TYPE-UMREZ, sy-vline,
  WA_CPO_SELLING_DOC_DATA_TYPE-UMREN, sy-vline,
  WA_CPO_SELLING_DOC_DATA_TYPE-PMENA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPO_SELLING_DOC_DATA_TYPE 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_CPO_SELLING_DOC_DATA_TYPE 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_CPO_SELLING_DOC_DATA_TYPE INTO WA_CPO_SELLING_DOC_DATA_TYPE.


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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPO_SELLING_DOC_DATA_TYPE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPO_SELLING_DOC_DATA_TYPE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPO_SELLING_DOC_DATA_TYPE-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPO_SELLING_DOC_DATA_TYPE-SATNR.
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_CPO_SELLING_DOC_DATA_TYPE_STR, 
BTYPA TYPE STRING,
BLNRA TYPE STRING,
BPOSA TYPE STRING,
BETNA TYPE STRING,
WERKA TYPE STRING,
MATNR TYPE STRING,
MEINS TYPE STRING,
PEINA TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
PMENA TYPE STRING,
PMENA_B TYPE STRING,
EDTTS TYPE STRING,
LFDTS TYPE STRING,
EINTS TYPE STRING,
ABNNR TYPE STRING,
LIFNR TYPE STRING,
RESWK TYPE STRING,
UPTYP TYPE STRING,
UPVOR TYPE STRING,
UEPOS TYPE STRING,
ADDNR TYPE STRING,
SATNR TYPE STRING,
ATTYP TYPE STRING,
KZ_NO_FRET TYPE STRING,
SERVICE_DATA TYPE STRING,
SORT_INDEX TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPO_SELLING_DOC_DATA_TYPE_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_CPO_SELLING_DOC_DATA_TYPE_STR-BTYPA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-BLNRA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-BPOSA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-BETNA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-WERKA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-MATNR sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-MEINS sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-PEINA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-UMREZ sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-UMREN sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-PMENA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-PMENA_B sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-EDTTS sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-LFDTS sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-EINTS sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-ABNNR sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-LIFNR sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-RESWK sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-UPTYP sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-UPVOR sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-UEPOS sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-ADDNR sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-SATNR sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-ATTYP sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-KZ_NO_FRET sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-SERVICE_DATA sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-SORT_INDEX sy-vline 
WA_CPO_SELLING_DOC_DATA_TYPE_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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