ABAP Select data from SAP table RFVISADSUPPLY into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFVISADSUPPLY 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 RFVISADSUPPLY. 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 RFVISADSUPPLY 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_RFVISADSUPPLY TYPE STANDARD TABLE OF RFVISADSUPPLY,
      WA_RFVISADSUPPLY TYPE RFVISADSUPPLY,
      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: <RFVISADSUPPLY> TYPE RFVISADSUPPLY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVISADSUPPLY
*  INTO TABLE @DATA(IT_RFVISADSUPPLY2).
*--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_RFVISADSUPPLY INDEX 1 INTO DATA(WA_RFVISADSUPPLY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVISADSUPPLY>-JDELETE = 1.
<RFVISADSUPPLY>-JINTERNET = 1.
<RFVISADSUPPLY>-SIDLSUPPLY = 1.
<RFVISADSUPPLY>-XEYECATCH = 1.
<RFVISADSUPPLY>-SOBJTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVISADSUPPLY-SPARTID, sy-vline,
  WA_RFVISADSUPPLY-DFREEFROM, sy-vline,
  WA_RFVISADSUPPLY-DFREETILL, sy-vline,
  WA_RFVISADSUPPLY-CURRKEY, sy-vline,
  WA_RFVISADSUPPLY-AREAKEY, sy-vline,
  WA_RFVISADSUPPLY-SAQUISIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVISADSUPPLY 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_RFVISADSUPPLY 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_RFVISADSUPPLY INTO WA_RFVISADSUPPLY.


*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 CUNIT, internal->external for field AREAKEY
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RFVISADSUPPLY-AREAKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVISADSUPPLY-AREAKEY.
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_RFVISADSUPPLY_STR, 
JDELETE TYPE STRING,
JINTERNET TYPE STRING,
SIDLSUPPLY TYPE STRING,
XEYECATCH TYPE STRING,
SOBJTYPE TYPE STRING,
SPARTID TYPE STRING,
DFREEFROM TYPE STRING,
DFREETILL TYPE STRING,
CURRKEY TYPE STRING,
AREAKEY TYPE STRING,
SAQUISIT TYPE STRING,
PRENTEXCL TYPE STRING,
PRENTINCL TYPE STRING,
PRENTAREAEXCL TYPE STRING,
PRENTAREAINCL TYPE STRING,
PSIZEALL TYPE STRING,
PSIZEUSE TYPE STRING,
NROOMFULL TYPE STRING,
NROOMHALF TYPE STRING,
SFLOORNUM TYPE STRING,
SFLOORMAX TYPE STRING,
SFLOORCOD TYPE STRING,
SLOCALPOS TYPE STRING,
STRAFFROU TYPE STRING,
DBUILDDAT TYPE STRING,
DRSTORDAT TYPE STRING,
CFAFCODE TYPE STRING,
SPARKBAY TYPE STRING,
SPARKBAY2 TYPE STRING,
OCCUPOBLIGO TYPE STRING,
SCOUNTRY TYPE STRING,
SREGIO TYPE STRING,
SCOUNC TYPE STRING,
SCITYC TYPE STRING,
ZIPCODE TYPE STRING,
LOCATION TYPE STRING,
SUBLOCAT TYPE STRING,
STREET TYPE STRING,
JWBSPREFERRED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVISADSUPPLY_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_RFVISADSUPPLY_STR-JDELETE sy-vline 
WA_RFVISADSUPPLY_STR-JINTERNET sy-vline 
WA_RFVISADSUPPLY_STR-SIDLSUPPLY sy-vline 
WA_RFVISADSUPPLY_STR-XEYECATCH sy-vline 
WA_RFVISADSUPPLY_STR-SOBJTYPE sy-vline 
WA_RFVISADSUPPLY_STR-SPARTID sy-vline 
WA_RFVISADSUPPLY_STR-DFREEFROM sy-vline 
WA_RFVISADSUPPLY_STR-DFREETILL sy-vline 
WA_RFVISADSUPPLY_STR-CURRKEY sy-vline 
WA_RFVISADSUPPLY_STR-AREAKEY sy-vline 
WA_RFVISADSUPPLY_STR-SAQUISIT sy-vline 
WA_RFVISADSUPPLY_STR-PRENTEXCL sy-vline 
WA_RFVISADSUPPLY_STR-PRENTINCL sy-vline 
WA_RFVISADSUPPLY_STR-PRENTAREAEXCL sy-vline 
WA_RFVISADSUPPLY_STR-PRENTAREAINCL sy-vline 
WA_RFVISADSUPPLY_STR-PSIZEALL sy-vline 
WA_RFVISADSUPPLY_STR-PSIZEUSE sy-vline 
WA_RFVISADSUPPLY_STR-NROOMFULL sy-vline 
WA_RFVISADSUPPLY_STR-NROOMHALF sy-vline 
WA_RFVISADSUPPLY_STR-SFLOORNUM sy-vline 
WA_RFVISADSUPPLY_STR-SFLOORMAX sy-vline 
WA_RFVISADSUPPLY_STR-SFLOORCOD sy-vline 
WA_RFVISADSUPPLY_STR-SLOCALPOS sy-vline 
WA_RFVISADSUPPLY_STR-STRAFFROU sy-vline 
WA_RFVISADSUPPLY_STR-DBUILDDAT sy-vline 
WA_RFVISADSUPPLY_STR-DRSTORDAT sy-vline 
WA_RFVISADSUPPLY_STR-CFAFCODE sy-vline 
WA_RFVISADSUPPLY_STR-SPARKBAY sy-vline 
WA_RFVISADSUPPLY_STR-SPARKBAY2 sy-vline 
WA_RFVISADSUPPLY_STR-OCCUPOBLIGO sy-vline 
WA_RFVISADSUPPLY_STR-SCOUNTRY sy-vline 
WA_RFVISADSUPPLY_STR-SREGIO sy-vline 
WA_RFVISADSUPPLY_STR-SCOUNC sy-vline 
WA_RFVISADSUPPLY_STR-SCITYC sy-vline 
WA_RFVISADSUPPLY_STR-ZIPCODE sy-vline 
WA_RFVISADSUPPLY_STR-LOCATION sy-vline 
WA_RFVISADSUPPLY_STR-SUBLOCAT sy-vline 
WA_RFVISADSUPPLY_STR-STREET sy-vline 
WA_RFVISADSUPPLY_STR-JWBSPREFERRED sy-vline      INTO ld_text SEPARATED BY SPACE.

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