ABAP Select data from SAP table GRPCRTA_S_CTLOPURSRC02M1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GRPCRTA_S_CTLOPURSRC02M1 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 GRPCRTA_S_CTLOPURSRC02M1. 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 GRPCRTA_S_CTLOPURSRC02M1 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_GRPCRTA_S_CTLOPURSRC02M1 TYPE STANDARD TABLE OF GRPCRTA_S_CTLOPURSRC02M1,
      WA_GRPCRTA_S_CTLOPURSRC02M1 TYPE GRPCRTA_S_CTLOPURSRC02M1,
      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: <GRPCRTA_S_CTLOPURSRC02M1> TYPE GRPCRTA_S_CTLOPURSRC02M1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GRPCRTA_S_CTLOPURSRC02M1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GRPCRTA_S_CTLOPURSRC02M1
  INTO TABLE IT_GRPCRTA_S_CTLOPURSRC02M1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPCRTA_S_CTLOPURSRC02M1
*  INTO TABLE @DATA(IT_GRPCRTA_S_CTLOPURSRC02M12).
*--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_GRPCRTA_S_CTLOPURSRC02M1 INDEX 1 INTO DATA(WA_GRPCRTA_S_CTLOPURSRC02M12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GRPCRTA_S_CTLOPURSRC02M1 ASSIGNING <GRPCRTA_S_CTLOPURSRC02M1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPCRTA_S_CTLOPURSRC02M1>-GRPCRTA_SEQ = 1.
<GRPCRTA_S_CTLOPURSRC02M1>-DEFTYPE = 1.
<GRPCRTA_S_CTLOPURSRC02M1>-EORD_VDATU = 1.
<GRPCRTA_S_CTLOPURSRC02M1>-EORD_BDATU = 1.
<GRPCRTA_S_CTLOPURSRC02M1>-EORD_LIFNR = 1.

ENDLOOP.

LOOP AT IT_GRPCRTA_S_CTLOPURSRC02M1 INTO WA_GRPCRTA_S_CTLOPURSRC02M1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_FLIFN, sy-vline,
  WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_EBELN, sy-vline,
  WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_EBELP, sy-vline,
  WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_RESWK, sy-vline,
  WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_NOTKZ, sy-vline,
  WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_AUTET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPCRTA_S_CTLOPURSRC02M1 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_GRPCRTA_S_CTLOPURSRC02M1 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_GRPCRTA_S_CTLOPURSRC02M1 INTO WA_GRPCRTA_S_CTLOPURSRC02M1.


*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 EORD_LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EORD_EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_CTLOPURSRC02M1-EORD_EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_CTLOPURSRC02M1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_CTLOPURSRC02M1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_CTLOPURSRC02M1-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_CTLOPURSRC02M1-LIFNR.
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_GRPCRTA_S_CTLOPURSRC02M1_STR, 
GRPCRTA_SEQ TYPE STRING,
DEFTYPE TYPE STRING,
EORD_VDATU TYPE STRING,
EORD_BDATU TYPE STRING,
EORD_LIFNR TYPE STRING,
EORD_FLIFN TYPE STRING,
EORD_EBELN TYPE STRING,
EORD_EBELP TYPE STRING,
EORD_RESWK TYPE STRING,
EORD_NOTKZ TYPE STRING,
EORD_AUTET TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
WERKS TYPE STRING,
NAME1 TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
EKORG TYPE STRING,
EKOTX TYPE STRING,
LIFNR TYPE STRING,
LIFNR_NAME1 TYPE STRING,
ZEORD TYPE STRING,
SCRTEXT TYPE STRING,
VALUE_OLD TYPE STRING,
VALUE_NEW TYPE STRING,
CHANGE_TYPE TYPE STRING,
UDATE TYPE STRING,
UTIME TYPE STRING,
USERNAME TYPE STRING,
NUMCHANGE TYPE STRING,
TABNAME TYPE STRING,
FIELD_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPCRTA_S_CTLOPURSRC02M1_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_GRPCRTA_S_CTLOPURSRC02M1_STR-GRPCRTA_SEQ sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-DEFTYPE sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_VDATU sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_BDATU sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_LIFNR sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_FLIFN sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_EBELN sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_EBELP sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_RESWK sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_NOTKZ sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EORD_AUTET sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-BUKRS sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-BUTXT sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-WERKS sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-NAME1 sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-MATNR sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-MAKTX sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EKORG sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-EKOTX sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-LIFNR sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-LIFNR_NAME1 sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-ZEORD sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-SCRTEXT sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-VALUE_OLD sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-VALUE_NEW sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-CHANGE_TYPE sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-UDATE sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-UTIME sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-USERNAME sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-NUMCHANGE sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-TABNAME sy-vline 
WA_GRPCRTA_S_CTLOPURSRC02M1_STR-FIELD_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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