ABAP Select data from SAP table GRPCRTA_S_MGFIMDDIS1005C2N_SEL 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_MGFIMDDIS1005C2N_SEL 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_MGFIMDDIS1005C2N_SEL. 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_MGFIMDDIS1005C2N_SEL 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_MGFIMDDIS1005C2N_SEL TYPE STANDARD TABLE OF GRPCRTA_S_MGFIMDDIS1005C2N_SEL,
      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL TYPE GRPCRTA_S_MGFIMDDIS1005C2N_SEL,
      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_MGFIMDDIS1005C2N_SEL> TYPE GRPCRTA_S_MGFIMDDIS1005C2N_SEL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GRPCRTA_S_MGFIMDDIS1005C2N_SEL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GRPCRTA_S_MGFIMDDIS1005C2N_SEL
  INTO TABLE IT_GRPCRTA_S_MGFIMDDIS1005C2N_SEL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPCRTA_S_MGFIMDDIS1005C2N_SEL
*  INTO TABLE @DATA(IT_GRPCRTA_S_MGFIMDDIS1005C2N_SEL2).
*--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_MGFIMDDIS1005C2N_SEL INDEX 1 INTO DATA(WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GRPCRTA_S_MGFIMDDIS1005C2N_SEL ASSIGNING <GRPCRTA_S_MGFIMDDIS1005C2N_SEL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPCRTA_S_MGFIMDDIS1005C2N_SEL>-T001_BUKRS = 1.
<GRPCRTA_S_MGFIMDDIS1005C2N_SEL>-SKA1_SAKNR = 1.
<GRPCRTA_S_MGFIMDDIS1005C2N_SEL>-T004_KTOPL = 1.
<GRPCRTA_S_MGFIMDDIS1005C2N_SEL>-USR01_BNAME = 1.
<GRPCRTA_S_MGFIMDDIS1005C2N_SEL>-BKPF_GJAHR = 1.

ENDLOOP.

LOOP AT IT_GRPCRTA_S_MGFIMDDIS1005C2N_SEL INTO WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_BELNR, sy-vline,
  WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_MONAT, sy-vline,
  WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_BUDAT, sy-vline,
  WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_BLART, sy-vline,
  WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_TCODE, sy-vline,
  WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_KOART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL 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_MGFIMDDIS1005C2N_SEL 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_MGFIMDDIS1005C2N_SEL INTO WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL.


*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 SKA1_SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-SKA1_SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-SKA1_SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BKPF_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BKPF_BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BKPF_BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BSEG_HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BSEG_KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BSEG_PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field BSEG_PROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_PROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_PROJK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BSEG_KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BSEG_LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL-BSEG_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_MGFIMDDIS1005C2N_SEL_STR, 
T001_BUKRS TYPE STRING,
SKA1_SAKNR TYPE STRING,
T004_KTOPL TYPE STRING,
USR01_BNAME TYPE STRING,
BKPF_GJAHR TYPE STRING,
BKPF_BELNR TYPE STRING,
BKPF_MONAT TYPE STRING,
BKPF_BUDAT TYPE STRING,
BKPF_BLART TYPE STRING,
BKPF_TCODE TYPE STRING,
BSEG_KOART TYPE STRING,
BSEG_BSCHL TYPE STRING,
BSEG_HKONT TYPE STRING,
BSEG_KOSTL TYPE STRING,
BSEG_PRCTR TYPE STRING,
BSEG_PROJK TYPE STRING,
BSEG_KUNNR TYPE STRING,
BSEG_LIFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_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_MGFIMDDIS1005C2N_SEL_STR-T001_BUKRS sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-SKA1_SAKNR sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-T004_KTOPL sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-USR01_BNAME sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BKPF_GJAHR sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BKPF_BELNR sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BKPF_MONAT sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BKPF_BUDAT sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BKPF_BLART sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BKPF_TCODE sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_KOART sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_BSCHL sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_HKONT sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_KOSTL sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_PRCTR sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_PROJK sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_KUNNR sy-vline 
WA_GRPCRTA_S_MGFIMDDIS1005C2N_SEL_STR-BSEG_LIFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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