ABAP Select data from SAP table BIW_T001WS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BIW_T001WS 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 BIW_T001WS. 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 BIW_T001WS 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_BIW_T001WS TYPE STANDARD TABLE OF BIW_T001WS,
      WA_BIW_T001WS TYPE BIW_T001WS,
      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: <BIW_T001WS> TYPE BIW_T001WS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BIW_T001WS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BIW_T001WS
  INTO TABLE IT_BIW_T001WS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_T001WS
*  INTO TABLE @DATA(IT_BIW_T001WS2).
*--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_BIW_T001WS INDEX 1 INTO DATA(WA_BIW_T001WS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BIW_T001WS ASSIGNING <BIW_T001WS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_T001WS>-MANDT = 1.
<BIW_T001WS>-WERKS = 1.
<BIW_T001WS>-NAME1 = 1.
<BIW_T001WS>-NAME2 = 1.
<BIW_T001WS>-STRAS = 1.

ENDLOOP.

LOOP AT IT_BIW_T001WS INTO WA_BIW_T001WS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_T001WS-PFACH, sy-vline,
  WA_BIW_T001WS-PSTLZ, sy-vline,
  WA_BIW_T001WS-ORT01, sy-vline,
  WA_BIW_T001WS-EKORG, sy-vline,
  WA_BIW_T001WS-BWKEY, sy-vline,
  WA_BIW_T001WS-VKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_T001WS 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_BIW_T001WS 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_BIW_T001WS INTO WA_BIW_T001WS.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_T001WS-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_T001WS-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_T001WS-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_T001WS-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_T001WS-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_T001WS-LIFNR.
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_BIW_T001WS_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
EKORG TYPE STRING,
BWKEY TYPE STRING,
VKORG TYPE STRING,
CHAZV TYPE STRING,
FABKL TYPE STRING,
KKOWK TYPE STRING,
KORDB TYPE STRING,
BEDPL TYPE STRING,
LAND1 TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
CITYC TYPE STRING,
IWERK TYPE STRING,
TXJCD TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KUNNR TYPE STRING,
SPRAS TYPE STRING,
WKSOP TYPE STRING,
AWSLS TYPE STRING,
VLFKZ TYPE STRING,
LIFNR TYPE STRING,
BZIRK TYPE STRING,
ZONE1 TYPE STRING,
TAXIW TYPE STRING,
BZQHL TYPE STRING,
LET01 TYPE STRING,
LET02 TYPE STRING,
LET03 TYPE STRING,
TXNAM_MA1 TYPE STRING,
TXNAM_MA2 TYPE STRING,
TXNAM_MA3 TYPE STRING,
BETOL TYPE STRING,
STORETYPE TYPE STRING,
DEP_STORE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_T001WS_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_BIW_T001WS_STR-MANDT sy-vline 
WA_BIW_T001WS_STR-WERKS sy-vline 
WA_BIW_T001WS_STR-NAME1 sy-vline 
WA_BIW_T001WS_STR-NAME2 sy-vline 
WA_BIW_T001WS_STR-STRAS sy-vline 
WA_BIW_T001WS_STR-PFACH sy-vline 
WA_BIW_T001WS_STR-PSTLZ sy-vline 
WA_BIW_T001WS_STR-ORT01 sy-vline 
WA_BIW_T001WS_STR-EKORG sy-vline 
WA_BIW_T001WS_STR-BWKEY sy-vline 
WA_BIW_T001WS_STR-VKORG sy-vline 
WA_BIW_T001WS_STR-CHAZV sy-vline 
WA_BIW_T001WS_STR-FABKL sy-vline 
WA_BIW_T001WS_STR-KKOWK sy-vline 
WA_BIW_T001WS_STR-KORDB sy-vline 
WA_BIW_T001WS_STR-BEDPL sy-vline 
WA_BIW_T001WS_STR-LAND1 sy-vline 
WA_BIW_T001WS_STR-REGIO sy-vline 
WA_BIW_T001WS_STR-COUNC sy-vline 
WA_BIW_T001WS_STR-CITYC sy-vline 
WA_BIW_T001WS_STR-IWERK sy-vline 
WA_BIW_T001WS_STR-TXJCD sy-vline 
WA_BIW_T001WS_STR-VTWEG sy-vline 
WA_BIW_T001WS_STR-SPART sy-vline 
WA_BIW_T001WS_STR-KUNNR sy-vline 
WA_BIW_T001WS_STR-SPRAS sy-vline 
WA_BIW_T001WS_STR-WKSOP sy-vline 
WA_BIW_T001WS_STR-AWSLS sy-vline 
WA_BIW_T001WS_STR-VLFKZ sy-vline 
WA_BIW_T001WS_STR-LIFNR sy-vline 
WA_BIW_T001WS_STR-BZIRK sy-vline 
WA_BIW_T001WS_STR-ZONE1 sy-vline 
WA_BIW_T001WS_STR-TAXIW sy-vline 
WA_BIW_T001WS_STR-BZQHL sy-vline 
WA_BIW_T001WS_STR-LET01 sy-vline 
WA_BIW_T001WS_STR-LET02 sy-vline 
WA_BIW_T001WS_STR-LET03 sy-vline 
WA_BIW_T001WS_STR-TXNAM_MA1 sy-vline 
WA_BIW_T001WS_STR-TXNAM_MA2 sy-vline 
WA_BIW_T001WS_STR-TXNAM_MA3 sy-vline 
WA_BIW_T001WS_STR-BETOL sy-vline 
WA_BIW_T001WS_STR-STORETYPE sy-vline 
WA_BIW_T001WS_STR-DEP_STORE sy-vline      INTO ld_text SEPARATED BY SPACE.

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