ABAP Select data from SAP table MDC_MBEW_ATTRIBUTES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDC_MBEW_ATTRIBUTES
*  INTO TABLE @DATA(IT_MDC_MBEW_ATTRIBUTES2).
*--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_MDC_MBEW_ATTRIBUTES INDEX 1 INTO DATA(WA_MDC_MBEW_ATTRIBUTES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDC_MBEW_ATTRIBUTES>-LVORM = 1.
<MDC_MBEW_ATTRIBUTES>-LBKUM = 1.
<MDC_MBEW_ATTRIBUTES>-SALK3 = 1.
<MDC_MBEW_ATTRIBUTES>-VPRSV = 1.
<MDC_MBEW_ATTRIBUTES>-VERPR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDC_MBEW_ATTRIBUTES-STPRS, sy-vline,
  WA_MDC_MBEW_ATTRIBUTES-PEINH, sy-vline,
  WA_MDC_MBEW_ATTRIBUTES-BKLAS, sy-vline,
  WA_MDC_MBEW_ATTRIBUTES-SALKV, sy-vline,
  WA_MDC_MBEW_ATTRIBUTES-VMKUM, sy-vline,
  WA_MDC_MBEW_ATTRIBUTES-VMSAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDC_MBEW_ATTRIBUTES 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_MDC_MBEW_ATTRIBUTES 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_MDC_MBEW_ATTRIBUTES INTO WA_MDC_MBEW_ATTRIBUTES.


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

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

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

*Conversion exit GJAHR, internal->external for field PDATV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MDC_MBEW_ATTRIBUTES-PDATV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDC_MBEW_ATTRIBUTES-PDATV.
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_MDC_MBEW_ATTRIBUTES_STR, 
LVORM TYPE STRING,
LBKUM TYPE STRING,
SALK3 TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
PEINH TYPE STRING,
BKLAS TYPE STRING,
SALKV TYPE STRING,
VMKUM TYPE STRING,
VMSAL TYPE STRING,
VMVPR TYPE STRING,
VMVER TYPE STRING,
VMSTP TYPE STRING,
VMPEI TYPE STRING,
VMBKL TYPE STRING,
VMSAV TYPE STRING,
VJKUM TYPE STRING,
VJSAL TYPE STRING,
VJVPR TYPE STRING,
VJVER TYPE STRING,
VJSTP TYPE STRING,
VJPEI TYPE STRING,
VJBKL TYPE STRING,
VJSAV TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
BWTTY TYPE STRING,
STPRV TYPE STRING,
LAEPR TYPE STRING,
ZKPRS TYPE STRING,
ZKDAT TYPE STRING,
TIMESTAMP TYPE STRING,
BWPRS TYPE STRING,
BWPRH TYPE STRING,
VJBWS TYPE STRING,
VJBWH TYPE STRING,
VVJSL TYPE STRING,
VVJLB TYPE STRING,
VVMLB TYPE STRING,
VVSAL TYPE STRING,
ZPLPR TYPE STRING,
ZPLP1 TYPE STRING,
ZPLP2 TYPE STRING,
ZPLP3 TYPE STRING,
ZPLD1 TYPE STRING,
ZPLD2 TYPE STRING,
ZPLD3 TYPE STRING,
PPERZ TYPE STRING,
PPERL TYPE STRING,
PPERV TYPE STRING,
KALKZ TYPE STRING,
KALKL TYPE STRING,
KALKV TYPE STRING,
KALSC TYPE STRING,
XLIFO TYPE STRING,
MYPOL TYPE STRING,
BWPH1 TYPE STRING,
BWPS1 TYPE STRING,
ABWKZ TYPE STRING,
PSTAT TYPE STRING,
KALN1 TYPE STRING,
KALNR TYPE STRING,
BWVA1 TYPE STRING,
BWVA2 TYPE STRING,
BWVA3 TYPE STRING,
VERS1 TYPE STRING,
VERS2 TYPE STRING,
VERS3 TYPE STRING,
HRKFT TYPE STRING,
KOSGR TYPE STRING,
PPRDZ TYPE STRING,
PPRDL TYPE STRING,
PPRDV TYPE STRING,
PDATZ TYPE STRING,
PDATL TYPE STRING,
PDATV TYPE STRING,
EKALR TYPE STRING,
VPLPR TYPE STRING,
MLMAA TYPE STRING,
MLAST TYPE STRING,
LPLPR TYPE STRING,
VKSAL TYPE STRING,
HKMAT TYPE STRING,
SPERW TYPE STRING,
KZIWL TYPE STRING,
WLINL TYPE STRING,
ABCIW TYPE STRING,
BWSPA TYPE STRING,
LPLPX TYPE STRING,
VPLPX TYPE STRING,
FPLPX TYPE STRING,
LBWST TYPE STRING,
VBWST TYPE STRING,
FBWST TYPE STRING,
EKLAS TYPE STRING,
QKLAS TYPE STRING,
MTUSE TYPE STRING,
MTORG TYPE STRING,
OWNPR TYPE STRING,
XBEWM TYPE STRING,
BWPEI TYPE STRING,
MBRUE TYPE STRING,
OKLAS TYPE STRING,
DUMMY_VAL_INCL_EEW_PS TYPE STRING,
OIPPINV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDC_MBEW_ATTRIBUTES_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_MDC_MBEW_ATTRIBUTES_STR-LVORM sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LBKUM sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-SALK3 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VPRSV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VERPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-STPRS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PEINH sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BKLAS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-SALKV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMKUM sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMSAL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMVPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMVER sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMSTP sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMPEI sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMBKL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VMSAV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJKUM sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJSAL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJVPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJVER sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJSTP sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJPEI sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJBKL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJSAV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LFGJA sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LFMON sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWTTY sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-STPRV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LAEPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZKPRS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZKDAT sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-TIMESTAMP sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWPRS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWPRH sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJBWS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VJBWH sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VVJSL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VVJLB sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VVMLB sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VVSAL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLP1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLP2 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLP3 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLD1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLD2 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ZPLD3 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PPERZ sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PPERL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PPERV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KALKZ sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KALKL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KALKV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KALSC sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-XLIFO sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-MYPOL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWPH1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWPS1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ABWKZ sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PSTAT sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KALN1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KALNR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWVA1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWVA2 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWVA3 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VERS1 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VERS2 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VERS3 sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-HRKFT sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KOSGR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PPRDZ sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PPRDL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PPRDV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PDATZ sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PDATL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-PDATV sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-EKALR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VPLPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-MLMAA sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-MLAST sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LPLPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VKSAL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-HKMAT sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-SPERW sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-KZIWL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-WLINL sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-ABCIW sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWSPA sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LPLPX sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VPLPX sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-FPLPX sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-LBWST sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-VBWST sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-FBWST sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-EKLAS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-QKLAS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-MTUSE sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-MTORG sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-OWNPR sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-XBEWM sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-BWPEI sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-MBRUE sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-OKLAS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-DUMMY_VAL_INCL_EEW_PS sy-vline 
WA_MDC_MBEW_ATTRIBUTES_STR-OIPPINV sy-vline      INTO ld_text SEPARATED BY SPACE.

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