ABAP Select data from SAP table BUS020_EXTX into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP BUS020_EXTX 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 BUS020_EXTX. 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 BUS020_EXTX 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_BUS020_EXTX TYPE STANDARD TABLE OF BUS020_EXTX,
      WA_BUS020_EXTX TYPE BUS020_EXTX,
      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: <BUS020_EXTX> TYPE BUS020_EXTX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BUS020_EXTX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BUS020_EXTX
  INTO TABLE IT_BUS020_EXTX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BUS020_EXTX
*  INTO TABLE @DATA(IT_BUS020_EXTX2).
*--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_BUS020_EXTX INDEX 1 INTO DATA(WA_BUS020_EXTX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BUS020_EXTX ASSIGNING <BUS020_EXTX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BUS020_EXTX>-XDFADRX = 1.
<BUS020_EXTX>-ADEXTX = 1.
<BUS020_EXTX>-NATIONX = 1.
<BUS020_EXTX>-MOVE_ADDRX = 1.
<BUS020_EXTX>-ADDR_VALID_FROMX = 1.

ENDLOOP.

LOOP AT IT_BUS020_EXTX INTO WA_BUS020_EXTX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BUS020_EXTX-ADDR_VALID_TOX, sy-vline,
  WA_BUS020_EXTX-ADDR_MOVE_DATEX, sy-vline,
  WA_BUS020_EXTX-NAME_COX, sy-vline,
  WA_BUS020_EXTX-CITY1X, sy-vline,
  WA_BUS020_EXTX-CITY2X, sy-vline,
  WA_BUS020_EXTX-CITY_CODEX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BUS020_EXTX 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_BUS020_EXTX 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_BUS020_EXTX INTO WA_BUS020_EXTX.


*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_BUS020_EXTX_STR, 
XDFADRX TYPE STRING,
ADEXTX TYPE STRING,
NATIONX TYPE STRING,
MOVE_ADDRX TYPE STRING,
ADDR_VALID_FROMX TYPE STRING,
ADDR_VALID_TOX TYPE STRING,
ADDR_MOVE_DATEX TYPE STRING,
NAME_COX TYPE STRING,
CITY1X TYPE STRING,
CITY2X TYPE STRING,
CITY_CODEX TYPE STRING,
CITYP_CODEX TYPE STRING,
HOME_CITYX TYPE STRING,
CITYH_CODEX TYPE STRING,
CHCKSTATUSX TYPE STRING,
REGIOGROUPX TYPE STRING,
POST_CODE1X TYPE STRING,
POST_CODE2X TYPE STRING,
POST_CODE3X TYPE STRING,
PO_BOXX TYPE STRING,
PO_BOX_NUMX TYPE STRING,
PO_BOX_LOCX TYPE STRING,
CITY_CODE2X TYPE STRING,
PO_BOX_REGX TYPE STRING,
PO_BOX_CTYX TYPE STRING,
TRANSPZONEX TYPE STRING,
STREETX TYPE STRING,
STREETCODEX TYPE STRING,
HOUSE_NUM1X TYPE STRING,
HOUSE_NUM2X TYPE STRING,
STR_SUPPL1X TYPE STRING,
STR_SUPPL2X TYPE STRING,
STR_SUPPL3X TYPE STRING,
LOCATIONX TYPE STRING,
BUILDINGX TYPE STRING,
FLOORX TYPE STRING,
ROOMNUMBERX TYPE STRING,
COUNTRYX TYPE STRING,
LANGUX TYPE STRING,
REGIONX TYPE STRING,
SORT1X TYPE STRING,
SORT2X TYPE STRING,
EXTENSION1X TYPE STRING,
EXTENSION2X TYPE STRING,
TIME_ZONEX TYPE STRING,
TAXJURCODEX TYPE STRING,
REMARKX TYPE STRING,
LANGU_CREAX TYPE STRING,
DEFLT_COMMX TYPE STRING,
TEL_NUMBERX TYPE STRING,
TEL_EXTENSX TYPE STRING,
FAX_NUMBERX TYPE STRING,
FAX_EXTENSX TYPE STRING,
VALID_FROMX TYPE STRING,
VALID_TOX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BUS020_EXTX_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_BUS020_EXTX_STR-XDFADRX sy-vline 
WA_BUS020_EXTX_STR-ADEXTX sy-vline 
WA_BUS020_EXTX_STR-NATIONX sy-vline 
WA_BUS020_EXTX_STR-MOVE_ADDRX sy-vline 
WA_BUS020_EXTX_STR-ADDR_VALID_FROMX sy-vline 
WA_BUS020_EXTX_STR-ADDR_VALID_TOX sy-vline 
WA_BUS020_EXTX_STR-ADDR_MOVE_DATEX sy-vline 
WA_BUS020_EXTX_STR-NAME_COX sy-vline 
WA_BUS020_EXTX_STR-CITY1X sy-vline 
WA_BUS020_EXTX_STR-CITY2X sy-vline 
WA_BUS020_EXTX_STR-CITY_CODEX sy-vline 
WA_BUS020_EXTX_STR-CITYP_CODEX sy-vline 
WA_BUS020_EXTX_STR-HOME_CITYX sy-vline 
WA_BUS020_EXTX_STR-CITYH_CODEX sy-vline 
WA_BUS020_EXTX_STR-CHCKSTATUSX sy-vline 
WA_BUS020_EXTX_STR-REGIOGROUPX sy-vline 
WA_BUS020_EXTX_STR-POST_CODE1X sy-vline 
WA_BUS020_EXTX_STR-POST_CODE2X sy-vline 
WA_BUS020_EXTX_STR-POST_CODE3X sy-vline 
WA_BUS020_EXTX_STR-PO_BOXX sy-vline 
WA_BUS020_EXTX_STR-PO_BOX_NUMX sy-vline 
WA_BUS020_EXTX_STR-PO_BOX_LOCX sy-vline 
WA_BUS020_EXTX_STR-CITY_CODE2X sy-vline 
WA_BUS020_EXTX_STR-PO_BOX_REGX sy-vline 
WA_BUS020_EXTX_STR-PO_BOX_CTYX sy-vline 
WA_BUS020_EXTX_STR-TRANSPZONEX sy-vline 
WA_BUS020_EXTX_STR-STREETX sy-vline 
WA_BUS020_EXTX_STR-STREETCODEX sy-vline 
WA_BUS020_EXTX_STR-HOUSE_NUM1X sy-vline 
WA_BUS020_EXTX_STR-HOUSE_NUM2X sy-vline 
WA_BUS020_EXTX_STR-STR_SUPPL1X sy-vline 
WA_BUS020_EXTX_STR-STR_SUPPL2X sy-vline 
WA_BUS020_EXTX_STR-STR_SUPPL3X sy-vline 
WA_BUS020_EXTX_STR-LOCATIONX sy-vline 
WA_BUS020_EXTX_STR-BUILDINGX sy-vline 
WA_BUS020_EXTX_STR-FLOORX sy-vline 
WA_BUS020_EXTX_STR-ROOMNUMBERX sy-vline 
WA_BUS020_EXTX_STR-COUNTRYX sy-vline 
WA_BUS020_EXTX_STR-LANGUX sy-vline 
WA_BUS020_EXTX_STR-REGIONX sy-vline 
WA_BUS020_EXTX_STR-SORT1X sy-vline 
WA_BUS020_EXTX_STR-SORT2X sy-vline 
WA_BUS020_EXTX_STR-EXTENSION1X sy-vline 
WA_BUS020_EXTX_STR-EXTENSION2X sy-vline 
WA_BUS020_EXTX_STR-TIME_ZONEX sy-vline 
WA_BUS020_EXTX_STR-TAXJURCODEX sy-vline 
WA_BUS020_EXTX_STR-REMARKX sy-vline 
WA_BUS020_EXTX_STR-LANGU_CREAX sy-vline 
WA_BUS020_EXTX_STR-DEFLT_COMMX sy-vline 
WA_BUS020_EXTX_STR-TEL_NUMBERX sy-vline 
WA_BUS020_EXTX_STR-TEL_EXTENSX sy-vline 
WA_BUS020_EXTX_STR-FAX_NUMBERX sy-vline 
WA_BUS020_EXTX_STR-FAX_EXTENSX sy-vline 
WA_BUS020_EXTX_STR-VALID_FROMX sy-vline 
WA_BUS020_EXTX_STR-VALID_TOX sy-vline      INTO ld_text SEPARATED BY SPACE.

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