ABAP Select data from SAP table REVN_VNFLURST_OUTTAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REVN_VNFLURST_OUTTAB
*  INTO TABLE @DATA(IT_REVN_VNFLURST_OUTTAB2).
*--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_REVN_VNFLURST_OUTTAB INDEX 1 INTO DATA(WA_REVN_VNFLURST_OUTTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REVN_VNFLURST_OUTTAB>-INTRENO_FL = 1.
<REVN_VNFLURST_OUTTAB>-LAND1 = 1.
<REVN_VNFLURST_OUTTAB>-BUNDESLAND = 1.
<REVN_VNFLURST_OUTTAB>-BEZEI = 1.
<REVN_VNFLURST_OUTTAB>-GEMARKUNG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REVN_VNFLURST_OUTTAB-XGEMARK, sy-vline,
  WA_REVN_VNFLURST_OUTTAB-FLUR, sy-vline,
  WA_REVN_VNFLURST_OUTTAB-FLURSTUECK, sy-vline,
  WA_REVN_VNFLURST_OUTTAB-FLAECHE, sy-vline,
  WA_REVN_VNFLURST_OUTTAB-FEINS, sy-vline,
  WA_REVN_VNFLURST_OUTTAB-FLURSTKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REVN_VNFLURST_OUTTAB 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_REVN_VNFLURST_OUTTAB 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_REVN_VNFLURST_OUTTAB INTO WA_REVN_VNFLURST_OUTTAB.


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

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

*Conversion exit ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REVN_VNFLURST_OUTTAB-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REVN_VNFLURST_OUTTAB-PARTNR.
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_REVN_VNFLURST_OUTTAB_STR, 
INTRENO_FL TYPE STRING,
LAND1 TYPE STRING,
BUNDESLAND TYPE STRING,
BEZEI TYPE STRING,
GEMARKUNG TYPE STRING,
XGEMARK TYPE STRING,
FLUR TYPE STRING,
FLURSTUECK TYPE STRING,
FLAECHE TYPE STRING,
FEINS TYPE STRING,
FLURSTKZ TYPE STRING,
VNACHWNR TYPE STRING,
DATUM TYPE STRING,
XKREIS TYPE STRING,
XGEMEINDE TYPE STRING,
LANDX TYPE STRING,
DOKART TYPE STRING,
PARTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REVN_VNFLURST_OUTTAB_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_REVN_VNFLURST_OUTTAB_STR-INTRENO_FL sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-LAND1 sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-BUNDESLAND sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-BEZEI sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-GEMARKUNG sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-XGEMARK sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-FLUR sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-FLURSTUECK sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-FLAECHE sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-FEINS sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-FLURSTKZ sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-VNACHWNR sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-DATUM sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-XKREIS sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-XGEMEINDE sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-LANDX sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-DOKART sy-vline 
WA_REVN_VNFLURST_OUTTAB_STR-PARTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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