ABAP Select data from SAP table VNGEBM into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VNGEBM
*  INTO TABLE @DATA(IT_VNGEBM2).
*--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_VNGEBM INDEX 1 INTO DATA(WA_VNGEBM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VNGEBM>-MANDT = 1.
<VNGEBM>-EINRI = 1.
<VNGEBM>-FALN1 = 1.
<VNGEBM>-LFDNR = 1.
<VNGEBM>-FALN2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VNGEBM-GBDAT, sy-vline,
  WA_VNGEBM-GBTIM, sy-vline,
  WA_VNGEBM-GSCHL, sy-vline,
  WA_VNGEBM-GBGEW, sy-vline,
  WA_VNGEBM-GWEIN, sy-vline,
  WA_VNGEBM-GBGRO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VNGEBM 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_VNGEBM 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_VNGEBM INTO WA_VNGEBM.


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

*Conversion exit ALPHA, internal->external for field FALN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNGEBM-FALN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNGEBM-FALN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNGEBM-FALN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNGEBM-FALN2.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field BWERT5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNGEBM-BWERT5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNGEBM-BWERT5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BWERT10
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNGEBM-BWERT10
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNGEBM-BWERT10.
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_VNGEBM_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
FALN1 TYPE STRING,
LFDNR TYPE STRING,
FALN2 TYPE STRING,
GBDAT TYPE STRING,
GBTIM TYPE STRING,
GSCHL TYPE STRING,
GBGEW TYPE STRING,
GWEIN TYPE STRING,
GBGRO TYPE STRING,
GREIN TYPE STRING,
KZTXT TYPE STRING,
LGTXT TYPE STRING,
KZTOT TYPE STRING,
MODUS TYPE STRING,
BWERT TYPE STRING,
MEHRL TYPE STRING,
VNAME TYPE STRING,
STORN TYPE STRING,
STUSR TYPE STRING,
STDAT TYPE STRING,
ERDAT TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPUSR TYPE STRING,
GEBNR TYPE STRING,
KGMIS TYPE STRING,
BWERT5 TYPE STRING,
BWERT10 TYPE STRING,
NONACCEPT TYPE STRING,
HEAD_SIZE TYPE STRING,
BTHLO TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VNGEBM_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_VNGEBM_STR-MANDT sy-vline 
WA_VNGEBM_STR-EINRI sy-vline 
WA_VNGEBM_STR-FALN1 sy-vline 
WA_VNGEBM_STR-LFDNR sy-vline 
WA_VNGEBM_STR-FALN2 sy-vline 
WA_VNGEBM_STR-GBDAT sy-vline 
WA_VNGEBM_STR-GBTIM sy-vline 
WA_VNGEBM_STR-GSCHL sy-vline 
WA_VNGEBM_STR-GBGEW sy-vline 
WA_VNGEBM_STR-GWEIN sy-vline 
WA_VNGEBM_STR-GBGRO sy-vline 
WA_VNGEBM_STR-GREIN sy-vline 
WA_VNGEBM_STR-KZTXT sy-vline 
WA_VNGEBM_STR-LGTXT sy-vline 
WA_VNGEBM_STR-KZTOT sy-vline 
WA_VNGEBM_STR-MODUS sy-vline 
WA_VNGEBM_STR-BWERT sy-vline 
WA_VNGEBM_STR-MEHRL sy-vline 
WA_VNGEBM_STR-VNAME sy-vline 
WA_VNGEBM_STR-STORN sy-vline 
WA_VNGEBM_STR-STUSR sy-vline 
WA_VNGEBM_STR-STDAT sy-vline 
WA_VNGEBM_STR-ERDAT sy-vline 
WA_VNGEBM_STR-ERUSR sy-vline 
WA_VNGEBM_STR-UPDAT sy-vline 
WA_VNGEBM_STR-UPUSR sy-vline 
WA_VNGEBM_STR-GEBNR sy-vline 
WA_VNGEBM_STR-KGMIS sy-vline 
WA_VNGEBM_STR-BWERT5 sy-vline 
WA_VNGEBM_STR-BWERT10 sy-vline 
WA_VNGEBM_STR-NONACCEPT sy-vline 
WA_VNGEBM_STR-HEAD_SIZE sy-vline 
WA_VNGEBM_STR-BTHLO sy-vline 
WA_VNGEBM_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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