ABAP Select data from SAP table MCJLFZADD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCJLFZADD
*  INTO TABLE @DATA(IT_MCJLFZADD2).
*--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_MCJLFZADD INDEX 1 INTO DATA(WA_MCJLFZADD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCJLFZADD>-GPAG = 1.
<MCJLFZADD>-AUART = 1.
<MCJLFZADD>-AUARTGRP = 1.
<MCJLFZADD>-VKORG = 1.
<MCJLFZADD>-VTWEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCJLFZADD-SPART, sy-vline,
  WA_MCJLFZADD-VKBUR, sy-vline,
  WA_MCJLFZADD-VKGRP, sy-vline,
  WA_MCJLFZADD-GSKST, sy-vline,
  WA_MCJLFZADD-XIMMATRIK, sy-vline,
  WA_MCJLFZADD-POART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCJLFZADD 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_MCJLFZADD 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_MCJLFZADD INTO WA_MCJLFZADD.


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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field SACHPRAEM
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MCJLFZADD-SACHPRAEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCJLFZADD-SACHPRAEM.
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_MCJLFZADD_STR, 
GPAG TYPE STRING,
AUART TYPE STRING,
AUARTGRP TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
GSKST TYPE STRING,
XIMMATRIK TYPE STRING,
POART TYPE STRING,
XURPOS TYPE STRING,
POSGUELVON TYPE STRING,
POSGUELBIS TYPE STRING,
AKT_B_LAND TYPE STRING,
NRM_B_LAND TYPE STRING,
GSBER TYPE STRING,
KOKRS_POS TYPE STRING,
KOSTL_L_PO TYPE STRING,
STAFO TYPE STRING,
IVWKN TYPE STRING,
IVWKNFREI TYPE STRING,
IVWKN_VDAT TYPE STRING,
RECHBEGINN TYPE STRING,
RECHENDE TYPE STRING,
BEZUGGRD TYPE STRING,
KUENDGRD TYPE STRING,
XIVW TYPE STRING,
SBFREI TYPE STRING,
XLIEFGP TYPE STRING,
XLIEFBEZ TYPE STRING,
ETEEX TYPE STRING,
BEZPER TYPE STRING,
ETMENGE TYPE STRING,
ETMEINS TYPE STRING,
ETVORZEI TYPE STRING,
XFAKTURA TYPE STRING,
STAFO_ZUO TYPE STRING,
WERBEART TYPE STRING,
WERBEAKT TYPE STRING,
WERBTRAEG TYPE STRING,
SACHPRAEM TYPE STRING,
PVAKNTGRP TYPE STRING,
PVAKONGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCJLFZADD_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_MCJLFZADD_STR-GPAG sy-vline 
WA_MCJLFZADD_STR-AUART sy-vline 
WA_MCJLFZADD_STR-AUARTGRP sy-vline 
WA_MCJLFZADD_STR-VKORG sy-vline 
WA_MCJLFZADD_STR-VTWEG sy-vline 
WA_MCJLFZADD_STR-SPART sy-vline 
WA_MCJLFZADD_STR-VKBUR sy-vline 
WA_MCJLFZADD_STR-VKGRP sy-vline 
WA_MCJLFZADD_STR-GSKST sy-vline 
WA_MCJLFZADD_STR-XIMMATRIK sy-vline 
WA_MCJLFZADD_STR-POART sy-vline 
WA_MCJLFZADD_STR-XURPOS sy-vline 
WA_MCJLFZADD_STR-POSGUELVON sy-vline 
WA_MCJLFZADD_STR-POSGUELBIS sy-vline 
WA_MCJLFZADD_STR-AKT_B_LAND sy-vline 
WA_MCJLFZADD_STR-NRM_B_LAND sy-vline 
WA_MCJLFZADD_STR-GSBER sy-vline 
WA_MCJLFZADD_STR-KOKRS_POS sy-vline 
WA_MCJLFZADD_STR-KOSTL_L_PO sy-vline 
WA_MCJLFZADD_STR-STAFO sy-vline 
WA_MCJLFZADD_STR-IVWKN sy-vline 
WA_MCJLFZADD_STR-IVWKNFREI sy-vline 
WA_MCJLFZADD_STR-IVWKN_VDAT sy-vline 
WA_MCJLFZADD_STR-RECHBEGINN sy-vline 
WA_MCJLFZADD_STR-RECHENDE sy-vline 
WA_MCJLFZADD_STR-BEZUGGRD sy-vline 
WA_MCJLFZADD_STR-KUENDGRD sy-vline 
WA_MCJLFZADD_STR-XIVW sy-vline 
WA_MCJLFZADD_STR-SBFREI sy-vline 
WA_MCJLFZADD_STR-XLIEFGP sy-vline 
WA_MCJLFZADD_STR-XLIEFBEZ sy-vline 
WA_MCJLFZADD_STR-ETEEX sy-vline 
WA_MCJLFZADD_STR-BEZPER sy-vline 
WA_MCJLFZADD_STR-ETMENGE sy-vline 
WA_MCJLFZADD_STR-ETMEINS sy-vline 
WA_MCJLFZADD_STR-ETVORZEI sy-vline 
WA_MCJLFZADD_STR-XFAKTURA sy-vline 
WA_MCJLFZADD_STR-STAFO_ZUO sy-vline 
WA_MCJLFZADD_STR-WERBEART sy-vline 
WA_MCJLFZADD_STR-WERBEAKT sy-vline 
WA_MCJLFZADD_STR-WERBTRAEG sy-vline 
WA_MCJLFZADD_STR-SACHPRAEM sy-vline 
WA_MCJLFZADD_STR-PVAKNTGRP sy-vline 
WA_MCJLFZADD_STR-PVAKONGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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