ABAP Select data from SAP table OI0BW_S012 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP OI0BW_S012 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 OI0BW_S012. 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 OI0BW_S012 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_OI0BW_S012 TYPE STANDARD TABLE OF OI0BW_S012,
      WA_OI0BW_S012 TYPE OI0BW_S012,
      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: <OI0BW_S012> TYPE OI0BW_S012.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OI0BW_S012.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OI0BW_S012
  INTO TABLE IT_OI0BW_S012.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OI0BW_S012
*  INTO TABLE @DATA(IT_OI0BW_S0122).
*--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_OI0BW_S012 INDEX 1 INTO DATA(WA_OI0BW_S0122).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OI0BW_S012 ASSIGNING <OI0BW_S012>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OI0BW_S012>-OIFEETOT = 1.
<OI0BW_S012>-OIVATH = 1.
<OI0BW_S012>-OIVATF = 1.
<OI0BW_S012>-OITXCON1 = 1.
<OI0BW_S012>-OITXCON2 = 1.

ENDLOOP.

LOOP AT IT_OI0BW_S012 INTO WA_OI0BW_S012.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OI0BW_S012-OITXCON3, sy-vline,
  WA_OI0BW_S012-OITXCON4, sy-vline,
  WA_OI0BW_S012-OITXCON5, sy-vline,
  WA_OI0BW_S012-OITXCON6, sy-vline,
  WA_OI0BW_S012-WAERS, sy-vline,
  WA_OI0BW_S012-OISMENGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OI0BW_S012 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_OI0BW_S012 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_OI0BW_S012 INTO WA_OI0BW_S012.


*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 CUNIT, internal->external for field OIMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OI0BW_S012-OIMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0BW_S012-OIMEINS.
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_OI0BW_S012_STR, 
OIFEETOT TYPE STRING,
OIVATH TYPE STRING,
OIVATF TYPE STRING,
OITXCON1 TYPE STRING,
OITXCON2 TYPE STRING,
OITXCON3 TYPE STRING,
OITXCON4 TYPE STRING,
OITXCON5 TYPE STRING,
OITXCON6 TYPE STRING,
WAERS TYPE STRING,
OISMENGE TYPE STRING,
OIINTQTY TYPE STRING,
OIMEINS TYPE STRING,
OIRECQTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OI0BW_S012_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_OI0BW_S012_STR-OIFEETOT sy-vline 
WA_OI0BW_S012_STR-OIVATH sy-vline 
WA_OI0BW_S012_STR-OIVATF sy-vline 
WA_OI0BW_S012_STR-OITXCON1 sy-vline 
WA_OI0BW_S012_STR-OITXCON2 sy-vline 
WA_OI0BW_S012_STR-OITXCON3 sy-vline 
WA_OI0BW_S012_STR-OITXCON4 sy-vline 
WA_OI0BW_S012_STR-OITXCON5 sy-vline 
WA_OI0BW_S012_STR-OITXCON6 sy-vline 
WA_OI0BW_S012_STR-WAERS sy-vline 
WA_OI0BW_S012_STR-OISMENGE sy-vline 
WA_OI0BW_S012_STR-OIINTQTY sy-vline 
WA_OI0BW_S012_STR-OIMEINS sy-vline 
WA_OI0BW_S012_STR-OIRECQTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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