ABAP Select data from SAP table V50GALV6 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V50GALV6 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 V50GALV6. 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 V50GALV6 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_V50GALV6 TYPE STANDARD TABLE OF V50GALV6,
      WA_V50GALV6 TYPE V50GALV6,
      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: <V50GALV6> TYPE V50GALV6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V50GALV6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V50GALV6
  INTO TABLE IT_V50GALV6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V50GALV6
*  INTO TABLE @DATA(IT_V50GALV62).
*--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_V50GALV6 INDEX 1 INTO DATA(WA_V50GALV62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V50GALV6 ASSIGNING <V50GALV6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V50GALV6>-LFDNR = 1.
<V50GALV6>-BELEGNUMR = 1.
<V50GALV6>-HAUPTPOSI = 1.
<V50GALV6>-UEPOS = 1.
<V50GALV6>-BSART = 1.

ENDLOOP.

LOOP AT IT_V50GALV6 INTO WA_V50GALV6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V50GALV6-FKART, sy-vline,
  WA_V50GALV6-VBTYP, sy-vline,
  WA_V50GALV6-STAWN, sy-vline,
  WA_V50GALV6-RECHNWEAK, sy-vline,
  WA_V50GALV6-RECHNWEEH, sy-vline,
  WA_V50GALV6-GRENZWEAK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V50GALV6 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_V50GALV6 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_V50GALV6 INTO WA_V50GALV6.


*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 BELEGNUMR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V50GALV6-BELEGNUMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V50GALV6-BELEGNUMR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EIGENMAEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V50GALV6-EIGENMAEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V50GALV6-EIGENMAEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BESONMAEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V50GALV6-BESONMAEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V50GALV6-BESONMAEH.
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_V50GALV6_STR, 
LFDNR TYPE STRING,
BELEGNUMR TYPE STRING,
HAUPTPOSI TYPE STRING,
UEPOS TYPE STRING,
BSART TYPE STRING,
FKART TYPE STRING,
VBTYP TYPE STRING,
STAWN TYPE STRING,
RECHNWEAK TYPE STRING,
RECHNWEEH TYPE STRING,
GRENZWEAK TYPE STRING,
GRENZWEEH TYPE STRING,
IFREMDWAK TYPE STRING,
IFREMDWEH TYPE STRING,
EIGENMAAK TYPE STRING,
EIGENMAAK_DEC6 TYPE STRING,
EIGENMAEH TYPE STRING,
BESONMAAK TYPE STRING,
BESONMAEH TYPE STRING,
BESTILAND TYPE STRING,
VERSENDLD TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
ARRIVDEPA TYPE STRING,
SERVICEITEM TYPE STRING,
DEB_KRED_UIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V50GALV6_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_V50GALV6_STR-LFDNR sy-vline 
WA_V50GALV6_STR-BELEGNUMR sy-vline 
WA_V50GALV6_STR-HAUPTPOSI sy-vline 
WA_V50GALV6_STR-UEPOS sy-vline 
WA_V50GALV6_STR-BSART sy-vline 
WA_V50GALV6_STR-FKART sy-vline 
WA_V50GALV6_STR-VBTYP sy-vline 
WA_V50GALV6_STR-STAWN sy-vline 
WA_V50GALV6_STR-RECHNWEAK sy-vline 
WA_V50GALV6_STR-RECHNWEEH sy-vline 
WA_V50GALV6_STR-GRENZWEAK sy-vline 
WA_V50GALV6_STR-GRENZWEEH sy-vline 
WA_V50GALV6_STR-IFREMDWAK sy-vline 
WA_V50GALV6_STR-IFREMDWEH sy-vline 
WA_V50GALV6_STR-EIGENMAAK sy-vline 
WA_V50GALV6_STR-EIGENMAAK_DEC6 sy-vline 
WA_V50GALV6_STR-EIGENMAEH sy-vline 
WA_V50GALV6_STR-BESONMAAK sy-vline 
WA_V50GALV6_STR-BESONMAEH sy-vline 
WA_V50GALV6_STR-BESTILAND sy-vline 
WA_V50GALV6_STR-VERSENDLD sy-vline 
WA_V50GALV6_STR-BUKRS sy-vline 
WA_V50GALV6_STR-WERKS sy-vline 
WA_V50GALV6_STR-ARRIVDEPA sy-vline 
WA_V50GALV6_STR-SERVICEITEM sy-vline 
WA_V50GALV6_STR-DEB_KRED_UIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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