ABAP Select data from SAP table BIW_V_IQ_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BIW_V_IQ_S 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_V_IQ_S. 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_V_IQ_S 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_V_IQ_S TYPE STANDARD TABLE OF BIW_V_IQ_S,
      WA_BIW_V_IQ_S TYPE BIW_V_IQ_S,
      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_V_IQ_S> TYPE BIW_V_IQ_S.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_V_IQ_S
*  INTO TABLE @DATA(IT_BIW_V_IQ_S2).
*--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_V_IQ_S INDEX 1 INTO DATA(WA_BIW_V_IQ_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_V_IQ_S>-MANDT = 1.
<BIW_V_IQ_S>-POSID = 1.
<BIW_V_IQ_S>-POSNR = 1.
<BIW_V_IQ_S>-OBJNR = 1.
<BIW_V_IQ_S>-VKOKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_V_IQ_S-AKOSTL, sy-vline,
  WA_BIW_V_IQ_S-AGSBER, sy-vline,
  WA_BIW_V_IQ_S-APRCTR, sy-vline,
  WA_BIW_V_IQ_S-APROZA, sy-vline,
  WA_BIW_V_IQ_S-UMWKZ, sy-vline,
  WA_BIW_V_IQ_S-APROZU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_V_IQ_S 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_V_IQ_S 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_V_IQ_S INTO WA_BIW_V_IQ_S.


*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 REQID, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_REQID_OUTPUT'
  EXPORTING
    input =                      WA_BIW_V_IQ_S-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_V_IQ_S-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REQNR, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_REQNR_OUTPUT'
  EXPORTING
    input =                      WA_BIW_V_IQ_S-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_V_IQ_S-POSNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field APRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_V_IQ_S-APRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_V_IQ_S-APRCTR.
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_V_IQ_S_STR, 
MANDT TYPE STRING,
POSID TYPE STRING,
POSNR TYPE STRING,
OBJNR TYPE STRING,
VKOKRS TYPE STRING,
AKOSTL TYPE STRING,
AGSBER TYPE STRING,
APRCTR TYPE STRING,
APROZA TYPE STRING,
UMWKZ TYPE STRING,
APROZU TYPE STRING,
IZWEK TYPE STRING,
APROZI TYPE STRING,
ASPART TYPE STRING,
APROZS TYPE STRING,
AMATKL TYPE STRING,
APROZW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_V_IQ_S_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_V_IQ_S_STR-MANDT sy-vline 
WA_BIW_V_IQ_S_STR-POSID sy-vline 
WA_BIW_V_IQ_S_STR-POSNR sy-vline 
WA_BIW_V_IQ_S_STR-OBJNR sy-vline 
WA_BIW_V_IQ_S_STR-VKOKRS sy-vline 
WA_BIW_V_IQ_S_STR-AKOSTL sy-vline 
WA_BIW_V_IQ_S_STR-AGSBER sy-vline 
WA_BIW_V_IQ_S_STR-APRCTR sy-vline 
WA_BIW_V_IQ_S_STR-APROZA sy-vline 
WA_BIW_V_IQ_S_STR-UMWKZ sy-vline 
WA_BIW_V_IQ_S_STR-APROZU sy-vline 
WA_BIW_V_IQ_S_STR-IZWEK sy-vline 
WA_BIW_V_IQ_S_STR-APROZI sy-vline 
WA_BIW_V_IQ_S_STR-ASPART sy-vline 
WA_BIW_V_IQ_S_STR-APROZS sy-vline 
WA_BIW_V_IQ_S_STR-AMATKL sy-vline 
WA_BIW_V_IQ_S_STR-APROZW sy-vline      INTO ld_text SEPARATED BY SPACE.

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