ABAP Select data from SAP table WBO2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WBO2 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 WBO2. 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 WBO2 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_WBO2 TYPE STANDARD TABLE OF WBO2,
      WA_WBO2 TYPE WBO2,
      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: <WBO2> TYPE WBO2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WBO2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WBO2
  INTO TABLE IT_WBO2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBO2
*  INTO TABLE @DATA(IT_WBO22).
*--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_WBO2 INDEX 1 INTO DATA(WA_WBO22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WBO2 ASSIGNING <WBO2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBO2>-MANDT = 1.
<WBO2>-BOHANDLE = 1.
<WBO2>-SIMDEIND = 1.
<WBO2>-MATNR = 1.
<WBO2>-WERKS = 1.

ENDLOOP.

LOOP AT IT_WBO2 INTO WA_WBO2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBO2-LTSNR, sy-vline,
  WA_WBO2-EBELN, sy-vline,
  WA_WBO2-EBELP, sy-vline,
  WA_WBO2-POCRFLG, sy-vline,
  WA_WBO2-LGORT, sy-vline,
  WA_WBO2-INFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBO2 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_WBO2 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_WBO2 INTO WA_WBO2.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-BSTME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-GEWEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-GEWEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PUNEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-PUNEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-PUNEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBO2-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO2-KONNR.
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_WBO2_STR, 
MANDT TYPE STRING,
BOHANDLE TYPE STRING,
SIMDEIND TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LTSNR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
POCRFLG TYPE STRING,
LGORT TYPE STRING,
INFNR TYPE STRING,
PRWRT TYPE STRING,
QTYONHND TYPE STRING,
QTYONORD TYPE STRING,
CURWEKSA TYPE STRING,
RGOFCOV TYPE STRING,
PONORINV TYPE STRING,
POPROINV TYPE STRING,
PONORMAL TYPE STRING,
POINVBUY TYPE STRING,
NEXTPRDY TYPE STRING,
NEXTIBDY TYPE STRING,
CURODVAL TYPE STRING,
CURODVOL TYPE STRING,
CURODWGT TYPE STRING,
LGRAD TYPE STRING,
EBELT TYPE STRING,
WAERS TYPE STRING,
VOLEH TYPE STRING,
GEWEI TYPE STRING,
BSTME TYPE STRING,
MHDHB TYPE STRING,
CURODWGTN TYPE STRING,
GEWEIN TYPE STRING,
CURODPUN TYPE STRING,
PUNEI TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
EINDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBO2_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_WBO2_STR-MANDT sy-vline 
WA_WBO2_STR-BOHANDLE sy-vline 
WA_WBO2_STR-SIMDEIND sy-vline 
WA_WBO2_STR-MATNR sy-vline 
WA_WBO2_STR-WERKS sy-vline 
WA_WBO2_STR-LTSNR sy-vline 
WA_WBO2_STR-EBELN sy-vline 
WA_WBO2_STR-EBELP sy-vline 
WA_WBO2_STR-POCRFLG sy-vline 
WA_WBO2_STR-LGORT sy-vline 
WA_WBO2_STR-INFNR sy-vline 
WA_WBO2_STR-PRWRT sy-vline 
WA_WBO2_STR-QTYONHND sy-vline 
WA_WBO2_STR-QTYONORD sy-vline 
WA_WBO2_STR-CURWEKSA sy-vline 
WA_WBO2_STR-RGOFCOV sy-vline 
WA_WBO2_STR-PONORINV sy-vline 
WA_WBO2_STR-POPROINV sy-vline 
WA_WBO2_STR-PONORMAL sy-vline 
WA_WBO2_STR-POINVBUY sy-vline 
WA_WBO2_STR-NEXTPRDY sy-vline 
WA_WBO2_STR-NEXTIBDY sy-vline 
WA_WBO2_STR-CURODVAL sy-vline 
WA_WBO2_STR-CURODVOL sy-vline 
WA_WBO2_STR-CURODWGT sy-vline 
WA_WBO2_STR-LGRAD sy-vline 
WA_WBO2_STR-EBELT sy-vline 
WA_WBO2_STR-WAERS sy-vline 
WA_WBO2_STR-VOLEH sy-vline 
WA_WBO2_STR-GEWEI sy-vline 
WA_WBO2_STR-BSTME sy-vline 
WA_WBO2_STR-MHDHB sy-vline 
WA_WBO2_STR-CURODWGTN sy-vline 
WA_WBO2_STR-GEWEIN sy-vline 
WA_WBO2_STR-CURODPUN sy-vline 
WA_WBO2_STR-PUNEI sy-vline 
WA_WBO2_STR-KONNR sy-vline 
WA_WBO2_STR-KTPNR sy-vline 
WA_WBO2_STR-EINDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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