ABAP Select data from SAP table WRF_SHOPGENERAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRF_SHOPGENERAL
*  INTO TABLE @DATA(IT_WRF_SHOPGENERAL2).
*--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_WRF_SHOPGENERAL INDEX 1 INTO DATA(WA_WRF_SHOPGENERAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_SHOPGENERAL>-SHOP = 1.
<WRF_SHOPGENERAL>-SHOPNAME = 1.
<WRF_SHOPGENERAL>-ROOMNUMBER = 1.
<WRF_SHOPGENERAL>-FLOOR = 1.
<WRF_SHOPGENERAL>-BBBNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRF_SHOPGENERAL-BBSNR, sy-vline,
  WA_WRF_SHOPGENERAL-BUBKZ, sy-vline,
  WA_WRF_SHOPGENERAL-TEL_NUMBER, sy-vline,
  WA_WRF_SHOPGENERAL-MOB_NUMBER, sy-vline,
  WA_WRF_SHOPGENERAL-FAX_NUMBER, sy-vline,
  WA_WRF_SHOPGENERAL-SMTP_ADDR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRF_SHOPGENERAL 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_WRF_SHOPGENERAL 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_WRF_SHOPGENERAL INTO WA_WRF_SHOPGENERAL.


*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 SXIDN, internal->external for field SMTP_ADDR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_WRF_SHOPGENERAL-SMTP_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_SHOPGENERAL-SMTP_ADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VERFE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRF_SHOPGENERAL-VERFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_SHOPGENERAL-VERFE.
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_WRF_SHOPGENERAL_STR, 
SHOP TYPE STRING,
SHOPNAME TYPE STRING,
ROOMNUMBER TYPE STRING,
FLOOR TYPE STRING,
BBBNR TYPE STRING,
BBSNR TYPE STRING,
BUBKZ TYPE STRING,
TEL_NUMBER TYPE STRING,
MOB_NUMBER TYPE STRING,
FAX_NUMBER TYPE STRING,
SMTP_ADDR TYPE STRING,
TEL_EXTENS TYPE STRING,
FAX_EXTENS TYPE STRING,
VERFL TYPE STRING,
VERFE TYPE STRING,
EROED TYPE STRING,
SCHLD TYPE STRING,
UMSA1 TYPE STRING,
UWAER TYPE STRING,
UMJAH TYPE STRING,
JMZAH TYPE STRING,
JMJAH TYPE STRING,
PERIV TYPE STRING,
KATR1 TYPE STRING,
KATR2 TYPE STRING,
KATR3 TYPE STRING,
KATR4 TYPE STRING,
KATR5 TYPE STRING,
KATR6 TYPE STRING,
KATR7 TYPE STRING,
KATR8 TYPE STRING,
KATR9 TYPE STRING,
KATR10 TYPE STRING,
KDKG1 TYPE STRING,
KDKG2 TYPE STRING,
KDKG3 TYPE STRING,
KDKG4 TYPE STRING,
KDKG5 TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRF_SHOPGENERAL_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_WRF_SHOPGENERAL_STR-SHOP sy-vline 
WA_WRF_SHOPGENERAL_STR-SHOPNAME sy-vline 
WA_WRF_SHOPGENERAL_STR-ROOMNUMBER sy-vline 
WA_WRF_SHOPGENERAL_STR-FLOOR sy-vline 
WA_WRF_SHOPGENERAL_STR-BBBNR sy-vline 
WA_WRF_SHOPGENERAL_STR-BBSNR sy-vline 
WA_WRF_SHOPGENERAL_STR-BUBKZ sy-vline 
WA_WRF_SHOPGENERAL_STR-TEL_NUMBER sy-vline 
WA_WRF_SHOPGENERAL_STR-MOB_NUMBER sy-vline 
WA_WRF_SHOPGENERAL_STR-FAX_NUMBER sy-vline 
WA_WRF_SHOPGENERAL_STR-SMTP_ADDR sy-vline 
WA_WRF_SHOPGENERAL_STR-TEL_EXTENS sy-vline 
WA_WRF_SHOPGENERAL_STR-FAX_EXTENS sy-vline 
WA_WRF_SHOPGENERAL_STR-VERFL sy-vline 
WA_WRF_SHOPGENERAL_STR-VERFE sy-vline 
WA_WRF_SHOPGENERAL_STR-EROED sy-vline 
WA_WRF_SHOPGENERAL_STR-SCHLD sy-vline 
WA_WRF_SHOPGENERAL_STR-UMSA1 sy-vline 
WA_WRF_SHOPGENERAL_STR-UWAER sy-vline 
WA_WRF_SHOPGENERAL_STR-UMJAH sy-vline 
WA_WRF_SHOPGENERAL_STR-JMZAH sy-vline 
WA_WRF_SHOPGENERAL_STR-JMJAH sy-vline 
WA_WRF_SHOPGENERAL_STR-PERIV sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR1 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR2 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR3 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR4 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR5 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR6 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR7 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR8 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR9 sy-vline 
WA_WRF_SHOPGENERAL_STR-KATR10 sy-vline 
WA_WRF_SHOPGENERAL_STR-KDKG1 sy-vline 
WA_WRF_SHOPGENERAL_STR-KDKG2 sy-vline 
WA_WRF_SHOPGENERAL_STR-KDKG3 sy-vline 
WA_WRF_SHOPGENERAL_STR-KDKG4 sy-vline 
WA_WRF_SHOPGENERAL_STR-KDKG5 sy-vline 
WA_WRF_SHOPGENERAL_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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