ABAP Select data from SAP table FMBGAVAQF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMBGAVAQF
*  INTO TABLE @DATA(IT_FMBGAVAQF2).
*--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_FMBGAVAQF INDEX 1 INTO DATA(WA_FMBGAVAQF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMBGAVAQF>-MANDT = 1.
<FMBGAVAQF>-FIKRS = 1.
<FMBGAVAQF>-GJAHR = 1.
<FMBGAVAQF>-BGA = 1.
<FMBGAVAQF>-VAQ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMBGAVAQF-VAQ1, sy-vline,
  WA_FMBGAVAQF-VAQ2, sy-vline,
  WA_FMBGAVAQF-VAQ3, sy-vline,
  WA_FMBGAVAQF-VAQ4, sy-vline,
  WA_FMBGAVAQF-VAQ5, sy-vline,
  WA_FMBGAVAQF-VAQ6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMBGAVAQF 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_FMBGAVAQF 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_FMBGAVAQF INTO WA_FMBGAVAQF.


*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 GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMBGAVAQF-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMBGAVAQF-GJAHR.
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_FMBGAVAQF_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
GJAHR TYPE STRING,
BGA TYPE STRING,
VAQ TYPE STRING,
VAQ1 TYPE STRING,
VAQ2 TYPE STRING,
VAQ3 TYPE STRING,
VAQ4 TYPE STRING,
VAQ5 TYPE STRING,
VAQ6 TYPE STRING,
VAQ7 TYPE STRING,
VAQ8 TYPE STRING,
VAQ9 TYPE STRING,
VAQ10 TYPE STRING,
VAQ11 TYPE STRING,
VAQ12 TYPE STRING,
VAQ13 TYPE STRING,
VAQ14 TYPE STRING,
VAQ15 TYPE STRING,
VAQ16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMBGAVAQF_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_FMBGAVAQF_STR-MANDT sy-vline 
WA_FMBGAVAQF_STR-FIKRS sy-vline 
WA_FMBGAVAQF_STR-GJAHR sy-vline 
WA_FMBGAVAQF_STR-BGA sy-vline 
WA_FMBGAVAQF_STR-VAQ sy-vline 
WA_FMBGAVAQF_STR-VAQ1 sy-vline 
WA_FMBGAVAQF_STR-VAQ2 sy-vline 
WA_FMBGAVAQF_STR-VAQ3 sy-vline 
WA_FMBGAVAQF_STR-VAQ4 sy-vline 
WA_FMBGAVAQF_STR-VAQ5 sy-vline 
WA_FMBGAVAQF_STR-VAQ6 sy-vline 
WA_FMBGAVAQF_STR-VAQ7 sy-vline 
WA_FMBGAVAQF_STR-VAQ8 sy-vline 
WA_FMBGAVAQF_STR-VAQ9 sy-vline 
WA_FMBGAVAQF_STR-VAQ10 sy-vline 
WA_FMBGAVAQF_STR-VAQ11 sy-vline 
WA_FMBGAVAQF_STR-VAQ12 sy-vline 
WA_FMBGAVAQF_STR-VAQ13 sy-vline 
WA_FMBGAVAQF_STR-VAQ14 sy-vline 
WA_FMBGAVAQF_STR-VAQ15 sy-vline 
WA_FMBGAVAQF_STR-VAQ16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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