ABAP Select data from SAP table MCJLFGB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCJLFGB
*  INTO TABLE @DATA(IT_MCJLFGB2).
*--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_MCJLFGB INDEX 1 INTO DATA(WA_MCJLFGB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCJLFGB>-SUPKZ = 1.
<MCJLFGB>-MANDT = 1.
<MCJLFGB>-LFNGNR = 1.
<MCJLFGB>-NACHLFNGNR = 1.
<MCJLFGB>-LFNGART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCJLFGB-VAUSGB, sy-vline,
  WA_MCJLFGB-BEILGAUSST, sy-vline,
  WA_MCJLFGB-ANZEIGENAUSST, sy-vline,
  WA_MCJLFGB-BEZUGSTYP, sy-vline,
  WA_MCJLFGB-DRERZTAT, sy-vline,
  WA_MCJLFGB-PVATAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCJLFGB 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_MCJLFGB 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_MCJLFGB INTO WA_MCJLFGB.


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

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

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

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

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

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

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

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

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

*Conversion exit JKWBZ, internal->external for field VDZVERTRKZ
CALL FUNCTION 'CONVERSION_EXIT_JKWBZ_OUTPUT'
  EXPORTING
    input =                      WA_MCJLFGB-VDZVERTRKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCJLFGB-VDZVERTRKZ.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VSGZUSTLR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCJLFGB-VSGZUSTLR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCJLFGB-VSGZUSTLR.
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_MCJLFGB_STR, 
SUPKZ TYPE STRING,
MANDT TYPE STRING,
LFNGNR TYPE STRING,
NACHLFNGNR TYPE STRING,
LFNGART TYPE STRING,
VAUSGB TYPE STRING,
BEILGAUSST TYPE STRING,
ANZEIGENAUSST TYPE STRING,
BEZUGSTYP TYPE STRING,
DRERZTAT TYPE STRING,
PVATAT TYPE STRING,
MEDIAISSUE TYPE STRING,
BEZIRKTAT TYPE STRING,
GEOEINTAT TYPE STRING,
BEABLST TYPE STRING,
VSAUSSTART TYPE STRING,
LFBNRAUF TYPE STRING,
LFBNRVBR TYPE STRING,
LFARTTAT TYPE STRING,
MBZART TYPE STRING,
KNDGRUPPE TYPE STRING,
AUARTGRP TYPE STRING,
ERSCHDAT TYPE STRING,
VERSANDDAT TYPE STRING,
VRSNDZTRGL TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
STAFO TYPE STRING,
DRUCKEREI TYPE STRING,
LFARTLOG TYPE STRING,
BEZRUNDTAT TYPE STRING,
LFMENGE TYPE STRING,
RESMNGPLAN TYPE STRING,
WRBMNGPLAN TYPE STRING,
PVABEZEI10 TYPE STRING,
PVABERGRP1 TYPE STRING,
PVABERGRP2 TYPE STRING,
PVAPOVERKZ TYPE STRING,
PVAIVWNR TYPE STRING,
PVAISPCNRO TYPE STRING,
PVAISPCNRT TYPE STRING,
VDZVERTRKZ TYPE STRING,
PVARKAUFNR TYPE STRING,
PVARKPOSNR TYPE STRING,
PVACOAUFNR TYPE STRING,
DRERZSPART TYPE STRING,
JAHRGANG TYPE STRING,
NRIMJAHR TYPE STRING,
HEFTNUMMER TYPE STRING,
ABHOLSTELL TYPE STRING,
BUKRS TYPE STRING,
LIEF_LAND TYPE STRING,
ANZVAMO TYPE STRING,
ANZVATA TYPE STRING,
ANZVAWO TYPE STRING,
ANZVABU TYPE STRING,
ETMEINS TYPE STRING,
ZUSTELLER TYPE STRING,
VSGZUSTLR TYPE STRING,
DUMMYUSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCJLFGB_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_MCJLFGB_STR-SUPKZ sy-vline 
WA_MCJLFGB_STR-MANDT sy-vline 
WA_MCJLFGB_STR-LFNGNR sy-vline 
WA_MCJLFGB_STR-NACHLFNGNR sy-vline 
WA_MCJLFGB_STR-LFNGART sy-vline 
WA_MCJLFGB_STR-VAUSGB sy-vline 
WA_MCJLFGB_STR-BEILGAUSST sy-vline 
WA_MCJLFGB_STR-ANZEIGENAUSST sy-vline 
WA_MCJLFGB_STR-BEZUGSTYP sy-vline 
WA_MCJLFGB_STR-DRERZTAT sy-vline 
WA_MCJLFGB_STR-PVATAT sy-vline 
WA_MCJLFGB_STR-MEDIAISSUE sy-vline 
WA_MCJLFGB_STR-BEZIRKTAT sy-vline 
WA_MCJLFGB_STR-GEOEINTAT sy-vline 
WA_MCJLFGB_STR-BEABLST sy-vline 
WA_MCJLFGB_STR-VSAUSSTART sy-vline 
WA_MCJLFGB_STR-LFBNRAUF sy-vline 
WA_MCJLFGB_STR-LFBNRVBR sy-vline 
WA_MCJLFGB_STR-LFARTTAT sy-vline 
WA_MCJLFGB_STR-MBZART sy-vline 
WA_MCJLFGB_STR-KNDGRUPPE sy-vline 
WA_MCJLFGB_STR-AUARTGRP sy-vline 
WA_MCJLFGB_STR-ERSCHDAT sy-vline 
WA_MCJLFGB_STR-VERSANDDAT sy-vline 
WA_MCJLFGB_STR-VRSNDZTRGL sy-vline 
WA_MCJLFGB_STR-VKORG sy-vline 
WA_MCJLFGB_STR-VTWEG sy-vline 
WA_MCJLFGB_STR-STAFO sy-vline 
WA_MCJLFGB_STR-DRUCKEREI sy-vline 
WA_MCJLFGB_STR-LFARTLOG sy-vline 
WA_MCJLFGB_STR-BEZRUNDTAT sy-vline 
WA_MCJLFGB_STR-LFMENGE sy-vline 
WA_MCJLFGB_STR-RESMNGPLAN sy-vline 
WA_MCJLFGB_STR-WRBMNGPLAN sy-vline 
WA_MCJLFGB_STR-PVABEZEI10 sy-vline 
WA_MCJLFGB_STR-PVABERGRP1 sy-vline 
WA_MCJLFGB_STR-PVABERGRP2 sy-vline 
WA_MCJLFGB_STR-PVAPOVERKZ sy-vline 
WA_MCJLFGB_STR-PVAIVWNR sy-vline 
WA_MCJLFGB_STR-PVAISPCNRO sy-vline 
WA_MCJLFGB_STR-PVAISPCNRT sy-vline 
WA_MCJLFGB_STR-VDZVERTRKZ sy-vline 
WA_MCJLFGB_STR-PVARKAUFNR sy-vline 
WA_MCJLFGB_STR-PVARKPOSNR sy-vline 
WA_MCJLFGB_STR-PVACOAUFNR sy-vline 
WA_MCJLFGB_STR-DRERZSPART sy-vline 
WA_MCJLFGB_STR-JAHRGANG sy-vline 
WA_MCJLFGB_STR-NRIMJAHR sy-vline 
WA_MCJLFGB_STR-HEFTNUMMER sy-vline 
WA_MCJLFGB_STR-ABHOLSTELL sy-vline 
WA_MCJLFGB_STR-BUKRS sy-vline 
WA_MCJLFGB_STR-LIEF_LAND sy-vline 
WA_MCJLFGB_STR-ANZVAMO sy-vline 
WA_MCJLFGB_STR-ANZVATA sy-vline 
WA_MCJLFGB_STR-ANZVAWO sy-vline 
WA_MCJLFGB_STR-ANZVABU sy-vline 
WA_MCJLFGB_STR-ETMEINS sy-vline 
WA_MCJLFGB_STR-ZUSTELLER sy-vline 
WA_MCJLFGB_STR-VSGZUSTLR sy-vline 
WA_MCJLFGB_STR-DUMMYUSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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