ABAP Select data from SAP table V_GARTT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_GARTT
*  INTO TABLE @DATA(IT_V_GARTT2).
*--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_V_GARTT INDEX 1 INTO DATA(WA_V_GARTT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_GARTT>-MANDT = 1.
<V_GARTT>-SGSART = 1.
<V_GARTT>-SFHAART = 1.
<V_GARTT>-USGSART = 1.
<V_GARTT>-USFHAART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_GARTT-XTEXT, sy-vline,
  WA_V_GARTT-ABWTYP, sy-vline,
  WA_V_GARTT-SFGTYP, sy-vline,
  WA_V_GARTT-NUMKR, sy-vline,
  WA_V_GARTT-SAUTOBUCH, sy-vline,
  WA_V_GARTT-AUTOSETTLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_GARTT 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_V_GARTT 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_V_GARTT INTO WA_V_GARTT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_V_GARTT_STR, 
MANDT TYPE STRING,
SGSART TYPE STRING,
SFHAART TYPE STRING,
USGSART TYPE STRING,
USFHAART TYPE STRING,
XTEXT TYPE STRING,
ABWTYP TYPE STRING,
SFGTYP TYPE STRING,
NUMKR TYPE STRING,
SAUTOBUCH TYPE STRING,
AUTOSETTLE TYPE STRING,
RRANTYP TYPE STRING,
LTX TYPE STRING,
RANTYP TYPE STRING,
SREALGE TYPE STRING,
SREALVE TYPE STRING,
SBESTAB TYPE STRING,
SBESTZU TYPE STRING,
AHJFA TYPE STRING,
SCOMPCP TYPE STRING,
SBSTDCP TYPE STRING,
SROUND TYPE STRING,
RROUND TYPE STRING,
XLPG TYPE STRING,
SLPG TYPE STRING,
NUMKRANG TYPE STRING,
NUMKRSIM TYPE STRING,
STSMA TYPE STRING,
SNOMPAY TYPE STRING,
XTEXT01 TYPE STRING,
XABRBEZ TYPE STRING,
TXT TYPE STRING,
AUTOEXECUTE TYPE STRING,
SANLF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_GARTT_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_V_GARTT_STR-MANDT sy-vline 
WA_V_GARTT_STR-SGSART sy-vline 
WA_V_GARTT_STR-SFHAART sy-vline 
WA_V_GARTT_STR-USGSART sy-vline 
WA_V_GARTT_STR-USFHAART sy-vline 
WA_V_GARTT_STR-XTEXT sy-vline 
WA_V_GARTT_STR-ABWTYP sy-vline 
WA_V_GARTT_STR-SFGTYP sy-vline 
WA_V_GARTT_STR-NUMKR sy-vline 
WA_V_GARTT_STR-SAUTOBUCH sy-vline 
WA_V_GARTT_STR-AUTOSETTLE sy-vline 
WA_V_GARTT_STR-RRANTYP sy-vline 
WA_V_GARTT_STR-LTX sy-vline 
WA_V_GARTT_STR-RANTYP sy-vline 
WA_V_GARTT_STR-SREALGE sy-vline 
WA_V_GARTT_STR-SREALVE sy-vline 
WA_V_GARTT_STR-SBESTAB sy-vline 
WA_V_GARTT_STR-SBESTZU sy-vline 
WA_V_GARTT_STR-AHJFA sy-vline 
WA_V_GARTT_STR-SCOMPCP sy-vline 
WA_V_GARTT_STR-SBSTDCP sy-vline 
WA_V_GARTT_STR-SROUND sy-vline 
WA_V_GARTT_STR-RROUND sy-vline 
WA_V_GARTT_STR-XLPG sy-vline 
WA_V_GARTT_STR-SLPG sy-vline 
WA_V_GARTT_STR-NUMKRANG sy-vline 
WA_V_GARTT_STR-NUMKRSIM sy-vline 
WA_V_GARTT_STR-STSMA sy-vline 
WA_V_GARTT_STR-SNOMPAY sy-vline 
WA_V_GARTT_STR-XTEXT01 sy-vline 
WA_V_GARTT_STR-XABRBEZ sy-vline 
WA_V_GARTT_STR-TXT sy-vline 
WA_V_GARTT_STR-AUTOEXECUTE sy-vline 
WA_V_GARTT_STR-SANLF sy-vline      INTO ld_text SEPARATED BY SPACE.

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