ABAP Select data from SAP table WBO1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WBO1 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 WBO1. 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 WBO1 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_WBO1 TYPE STANDARD TABLE OF WBO1,
      WA_WBO1 TYPE WBO1,
      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: <WBO1> TYPE WBO1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WBO1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WBO1
  INTO TABLE IT_WBO1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBO1
*  INTO TABLE @DATA(IT_WBO12).
*--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_WBO1 INDEX 1 INTO DATA(WA_WBO12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WBO1 ASSIGNING <WBO1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBO1>-MANDT = 1.
<WBO1>-BOHANDLE = 1.
<WBO1>-LIFNR = 1.
<WBO1>-EKORG = 1.
<WBO1>-BOPNR = 1.

ENDLOOP.

LOOP AT IT_WBO1 INTO WA_WBO1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBO1-CSERLEV1, sy-vline,
  WA_WBO1-CSERLEV2, sy-vline,
  WA_WBO1-CSERLEV3, sy-vline,
  WA_WBO1-NEXTPRDY, sy-vline,
  WA_WBO1-NEXTIBDY, sy-vline,
  WA_WBO1-BOREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBO1 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_WBO1 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_WBO1 INTO WA_WBO1.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBO1-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBO1-LIFNR.
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_WBO1_STR, 
MANDT TYPE STRING,
BOHANDLE TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
BOPNR TYPE STRING,
CSERLEV1 TYPE STRING,
CSERLEV2 TYPE STRING,
CSERLEV3 TYPE STRING,
NEXTPRDY TYPE STRING,
NEXTIBDY TYPE STRING,
BOREASON TYPE STRING,
WKCHECK TYPE STRING,
NURSIMU TYPE STRING,
WLBLTSSPLITT TYPE STRING,
WLBCREDAT TYPE STRING,
WLBCRETIM TYPE STRING,
SBSUBMI TYPE STRING,
BEDAT TYPE STRING,
EINDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBO1_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_WBO1_STR-MANDT sy-vline 
WA_WBO1_STR-BOHANDLE sy-vline 
WA_WBO1_STR-LIFNR sy-vline 
WA_WBO1_STR-EKORG sy-vline 
WA_WBO1_STR-BOPNR sy-vline 
WA_WBO1_STR-CSERLEV1 sy-vline 
WA_WBO1_STR-CSERLEV2 sy-vline 
WA_WBO1_STR-CSERLEV3 sy-vline 
WA_WBO1_STR-NEXTPRDY sy-vline 
WA_WBO1_STR-NEXTIBDY sy-vline 
WA_WBO1_STR-BOREASON sy-vline 
WA_WBO1_STR-WKCHECK sy-vline 
WA_WBO1_STR-NURSIMU sy-vline 
WA_WBO1_STR-WLBLTSSPLITT sy-vline 
WA_WBO1_STR-WLBCREDAT sy-vline 
WA_WBO1_STR-WLBCRETIM sy-vline 
WA_WBO1_STR-SBSUBMI sy-vline 
WA_WBO1_STR-BEDAT sy-vline 
WA_WBO1_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.