ABAP Select data from SAP table BIW_IP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BIW_IP 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_IP. 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_IP 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_IP TYPE STANDARD TABLE OF BIW_IP,
      WA_BIW_IP TYPE BIW_IP,
      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_IP> TYPE BIW_IP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_IP
*  INTO TABLE @DATA(IT_BIW_IP2).
*--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_IP INDEX 1 INTO DATA(WA_BIW_IP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_IP>-IP_GNJHR = 1.
<BIW_IP>-IP_PRNAMS = 1.
<BIW_IP>-IP_PRNAM = 1.
<BIW_IP>-IP_POSID = 1.
<BIW_IP>-PPRIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_IP-IZWEK, sy-vline,
  WA_BIW_IP-BUKRS, sy-vline,
  WA_BIW_IP-GSBER, sy-vline,
  WA_BIW_IP-KOKRS, sy-vline,
  WA_BIW_IP-KOSTL, sy-vline,
  WA_BIW_IP-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_IP 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_IP 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_IP INTO WA_BIW_IP.


*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 GJAHR, internal->external for field IP_GNJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BIW_IP-IP_GNJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_IP-IP_GNJHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit POSID, internal->external for field IP_POSID
CALL FUNCTION 'CONVERSION_EXIT_POSID_OUTPUT'
  EXPORTING
    input =                      WA_BIW_IP-IP_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_IP-IP_POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_IP-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_IP-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_IP-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_IP-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_IP-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_IP-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SIZECL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_IP-SIZECL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_IP-SIZECL.
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_IP_STR, 
IP_GNJHR TYPE STRING,
IP_PRNAMS TYPE STRING,
IP_PRNAM TYPE STRING,
IP_POSID TYPE STRING,
PPRIO TYPE STRING,
IZWEK TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
VERNR TYPE STRING,
RCOMP TYPE STRING,
POSED TYPE STRING,
LAND1 TYPE STRING,
SCOPE TYPE STRING,
LEAF TYPE STRING,
SIZECL TYPE STRING,
BWSTSYS0 TYPE STRING,
BWS1SYS0 TYPE STRING,
BWS2SYS0 TYPE STRING,
BEBER TYPE STRING,
OWAERS TYPE STRING,
RHIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_IP_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_IP_STR-IP_GNJHR sy-vline 
WA_BIW_IP_STR-IP_PRNAMS sy-vline 
WA_BIW_IP_STR-IP_PRNAM sy-vline 
WA_BIW_IP_STR-IP_POSID sy-vline 
WA_BIW_IP_STR-PPRIO sy-vline 
WA_BIW_IP_STR-IZWEK sy-vline 
WA_BIW_IP_STR-BUKRS sy-vline 
WA_BIW_IP_STR-GSBER sy-vline 
WA_BIW_IP_STR-KOKRS sy-vline 
WA_BIW_IP_STR-KOSTL sy-vline 
WA_BIW_IP_STR-WERKS sy-vline 
WA_BIW_IP_STR-PRCTR sy-vline 
WA_BIW_IP_STR-VERNR sy-vline 
WA_BIW_IP_STR-RCOMP sy-vline 
WA_BIW_IP_STR-POSED sy-vline 
WA_BIW_IP_STR-LAND1 sy-vline 
WA_BIW_IP_STR-SCOPE sy-vline 
WA_BIW_IP_STR-LEAF sy-vline 
WA_BIW_IP_STR-SIZECL sy-vline 
WA_BIW_IP_STR-BWSTSYS0 sy-vline 
WA_BIW_IP_STR-BWS1SYS0 sy-vline 
WA_BIW_IP_STR-BWS2SYS0 sy-vline 
WA_BIW_IP_STR-BEBER sy-vline 
WA_BIW_IP_STR-OWAERS sy-vline 
WA_BIW_IP_STR-RHIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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