ABAP Select data from SAP table WBO3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WBO3 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 WBO3. 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 WBO3 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_WBO3 TYPE STANDARD TABLE OF WBO3,
      WA_WBO3 TYPE WBO3,
      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: <WBO3> TYPE WBO3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WBO3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WBO3
  INTO TABLE IT_WBO3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBO3
*  INTO TABLE @DATA(IT_WBO32).
*--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_WBO3 INDEX 1 INTO DATA(WA_WBO32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WBO3 ASSIGNING <WBO3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBO3>-MANDT = 1.
<WBO3>-EBELT = 1.
<WBO3>-EBELN = 1.
<WBO3>-EBELP = 1.
<WBO3>-LIFNR = 1.

ENDLOOP.

LOOP AT IT_WBO3 INTO WA_WBO3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBO3-WERKS, sy-vline,
  WA_WBO3-MATNR, sy-vline,
  WA_WBO3-ERDAT, sy-vline,
  WA_WBO3-LGORT, sy-vline,
  WA_WBO3-AKPRS, sy-vline,
  WA_WBO3-ZUPRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBO3 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_WBO3 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_WBO3 INTO WA_WBO3.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBO3-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO3-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBO3-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO3-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WBO3-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO3-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBO3-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO3-MEINS.
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_WBO3_STR, 
MANDT TYPE STRING,
EBELT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
LIFNR TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
ERDAT TYPE STRING,
LGORT TYPE STRING,
AKPRS TYPE STRING,
ZUPRS TYPE STRING,
WAERS TYPE STRING,
ROINV TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
EKGRP TYPE STRING,
RGOFCOV TYPE STRING,
QTYONORD TYPE STRING,
QTYONHND TYPE STRING,
EINDT TYPE STRING,
KZCREA TYPE STRING,
LKOST TYPE STRING,
RKOST TYPE STRING,
LOSFX TYPE STRING,
PRWRT TYPE STRING,
NETFL TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBO3_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_WBO3_STR-MANDT sy-vline 
WA_WBO3_STR-EBELT sy-vline 
WA_WBO3_STR-EBELN sy-vline 
WA_WBO3_STR-EBELP sy-vline 
WA_WBO3_STR-LIFNR sy-vline 
WA_WBO3_STR-WERKS sy-vline 
WA_WBO3_STR-MATNR sy-vline 
WA_WBO3_STR-ERDAT sy-vline 
WA_WBO3_STR-LGORT sy-vline 
WA_WBO3_STR-AKPRS sy-vline 
WA_WBO3_STR-ZUPRS sy-vline 
WA_WBO3_STR-WAERS sy-vline 
WA_WBO3_STR-ROINV sy-vline 
WA_WBO3_STR-MENGE sy-vline 
WA_WBO3_STR-MEINS sy-vline 
WA_WBO3_STR-EKGRP sy-vline 
WA_WBO3_STR-RGOFCOV sy-vline 
WA_WBO3_STR-QTYONORD sy-vline 
WA_WBO3_STR-QTYONHND sy-vline 
WA_WBO3_STR-EINDT sy-vline 
WA_WBO3_STR-KZCREA sy-vline 
WA_WBO3_STR-LKOST sy-vline 
WA_WBO3_STR-RKOST sy-vline 
WA_WBO3_STR-LOSFX sy-vline 
WA_WBO3_STR-PRWRT sy-vline 
WA_WBO3_STR-NETFL sy-vline 
WA_WBO3_STR-DATAB sy-vline 
WA_WBO3_STR-DATBI sy-vline      INTO ld_text SEPARATED BY SPACE.

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