ABAP Select data from SAP table JBIKUGW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBIKUGW
*  INTO TABLE @DATA(IT_JBIKUGW2).
*--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_JBIKUGW INDEX 1 INTO DATA(WA_JBIKUGW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBIKUGW>-OBJNR = 1.
<JBIKUGW>-BUKRS = 1.
<JBIKUGW>-RFHA = 1.
<JBIKUGW>-NORDER = 1.
<JBIKUGW>-RBAENEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBIKUGW-SBAENTYP, sy-vline,
  WA_JBIKUGW-DABSCH, sy-vline,
  WA_JBIKUGW-ABMENG_NEU, sy-vline,
  WA_JBIKUGW-ABMENG_ALT, sy-vline,
  WA_JBIKUGW-BBBETR_NEU, sy-vline,
  WA_JBIKUGW-BBBETR_ALT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBIKUGW 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_JBIKUGW 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_JBIKUGW INTO WA_JBIKUGW.


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

*Conversion exit EXCRT, internal->external for field KPREIS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_JBIKUGW-KPREIS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBIKUGW-KPREIS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KGLDKU_A
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_JBIKUGW-KGLDKU_A
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBIKUGW-KGLDKU_A.
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_JBIKUGW_STR, 
OBJNR TYPE STRING,
BUKRS TYPE STRING,
RFHA TYPE STRING,
NORDER TYPE STRING,
RBAENEXT TYPE STRING,
SBAENTYP TYPE STRING,
DABSCH TYPE STRING,
ABMENG_NEU TYPE STRING,
ABMENG_ALT TYPE STRING,
BBBETR_NEU TYPE STRING,
BBBETR_ALT TYPE STRING,
BPPREIS TYPE STRING,
BPGLDKU_A TYPE STRING,
BPREIS TYPE STRING,
BGLDKU_A TYPE STRING,
KPREIS TYPE STRING,
KGLDKU_A TYPE STRING,
BHWHR TYPE STRING,
BHWHR_ALT TYPE STRING,
BHWHR_NEU TYPE STRING,
BBWHR TYPE STRING,
BBWHR_ALT TYPE STRING,
BBWHR_NEU TYPE STRING,
GLD_NEU TYPE STRING,
AMENGE TYPE STRING,
BBETRG TYPE STRING,
SZUABKNZ TYPE STRING,
WBWAER TYPE STRING,
WHWAER TYPE STRING,
BRKUGW TYPE STRING,
BRKUVL TYPE STRING,
BRKDGW TYPE STRING,
BRKDVL TYPE STRING,
WBRKU TYPE STRING,
SPOSGLDWP TYPE STRING,
SPOSGLDDEV TYPE STRING,
SPOSGLDEFFZ TYPE STRING,
SPOSGLDVOL TYPE STRING,
SPOSGLDPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBIKUGW_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_JBIKUGW_STR-OBJNR sy-vline 
WA_JBIKUGW_STR-BUKRS sy-vline 
WA_JBIKUGW_STR-RFHA sy-vline 
WA_JBIKUGW_STR-NORDER sy-vline 
WA_JBIKUGW_STR-RBAENEXT sy-vline 
WA_JBIKUGW_STR-SBAENTYP sy-vline 
WA_JBIKUGW_STR-DABSCH sy-vline 
WA_JBIKUGW_STR-ABMENG_NEU sy-vline 
WA_JBIKUGW_STR-ABMENG_ALT sy-vline 
WA_JBIKUGW_STR-BBBETR_NEU sy-vline 
WA_JBIKUGW_STR-BBBETR_ALT sy-vline 
WA_JBIKUGW_STR-BPPREIS sy-vline 
WA_JBIKUGW_STR-BPGLDKU_A sy-vline 
WA_JBIKUGW_STR-BPREIS sy-vline 
WA_JBIKUGW_STR-BGLDKU_A sy-vline 
WA_JBIKUGW_STR-KPREIS sy-vline 
WA_JBIKUGW_STR-KGLDKU_A sy-vline 
WA_JBIKUGW_STR-BHWHR sy-vline 
WA_JBIKUGW_STR-BHWHR_ALT sy-vline 
WA_JBIKUGW_STR-BHWHR_NEU sy-vline 
WA_JBIKUGW_STR-BBWHR sy-vline 
WA_JBIKUGW_STR-BBWHR_ALT sy-vline 
WA_JBIKUGW_STR-BBWHR_NEU sy-vline 
WA_JBIKUGW_STR-GLD_NEU sy-vline 
WA_JBIKUGW_STR-AMENGE sy-vline 
WA_JBIKUGW_STR-BBETRG sy-vline 
WA_JBIKUGW_STR-SZUABKNZ sy-vline 
WA_JBIKUGW_STR-WBWAER sy-vline 
WA_JBIKUGW_STR-WHWAER sy-vline 
WA_JBIKUGW_STR-BRKUGW sy-vline 
WA_JBIKUGW_STR-BRKUVL sy-vline 
WA_JBIKUGW_STR-BRKDGW sy-vline 
WA_JBIKUGW_STR-BRKDVL sy-vline 
WA_JBIKUGW_STR-WBRKU sy-vline 
WA_JBIKUGW_STR-SPOSGLDWP sy-vline 
WA_JBIKUGW_STR-SPOSGLDDEV sy-vline 
WA_JBIKUGW_STR-SPOSGLDEFFZ sy-vline 
WA_JBIKUGW_STR-SPOSGLDVOL sy-vline 
WA_JBIKUGW_STR-SPOSGLDPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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