ABAP Select data from SAP table ROIRB0290 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIRB0290 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 ROIRB0290. 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 ROIRB0290 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_ROIRB0290 TYPE STANDARD TABLE OF ROIRB0290,
      WA_ROIRB0290 TYPE ROIRB0290,
      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: <ROIRB0290> TYPE ROIRB0290.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIRB0290.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIRB0290
  INTO TABLE IT_ROIRB0290.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIRB0290
*  INTO TABLE @DATA(IT_ROIRB02902).
*--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_ROIRB0290 INDEX 1 INTO DATA(WA_ROIRB02902).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIRB0290 ASSIGNING <ROIRB0290>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIRB0290>-PBLNR = 1.
<ROIRB0290>-RNBT = 1.
<ROIRB0290>-PR_AUTGR = 1.
<ROIRB0290>-LPRCLU = 1.
<ROIRB0290>-LPRCLUT = 1.

ENDLOOP.

LOOP AT IT_ROIRB0290 INTO WA_ROIRB0290.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIRB0290-LPRCLURATE, sy-vline,
  WA_ROIRB0290-LPRCLUKONWA, sy-vline,
  WA_ROIRB0290-LPRCLUKPEIN, sy-vline,
  WA_ROIRB0290-LPRCLUKMEIN, sy-vline,
  WA_ROIRB0290-SFDIFFGR, sy-vline,
  WA_ROIRB0290-SFDIFFGRT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIRB0290 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_ROIRB0290 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_ROIRB0290 INTO WA_ROIRB0290.


*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 PBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIRB0290-PBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRB0290-PBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LPRCLUKMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIRB0290-LPRCLUKMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRB0290-LPRCLUKMEIN.
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_ROIRB0290_STR, 
PBLNR TYPE STRING,
RNBT TYPE STRING,
PR_AUTGR TYPE STRING,
LPRCLU TYPE STRING,
LPRCLUT TYPE STRING,
LPRCLURATE TYPE STRING,
LPRCLUKONWA TYPE STRING,
LPRCLUKPEIN TYPE STRING,
LPRCLUKMEIN TYPE STRING,
SFDIFFGR TYPE STRING,
SFDIFFGRT TYPE STRING,
MDIFFGR TYPE STRING,
MDIFFGRT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIRB0290_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_ROIRB0290_STR-PBLNR sy-vline 
WA_ROIRB0290_STR-RNBT sy-vline 
WA_ROIRB0290_STR-PR_AUTGR sy-vline 
WA_ROIRB0290_STR-LPRCLU sy-vline 
WA_ROIRB0290_STR-LPRCLUT sy-vline 
WA_ROIRB0290_STR-LPRCLURATE sy-vline 
WA_ROIRB0290_STR-LPRCLUKONWA sy-vline 
WA_ROIRB0290_STR-LPRCLUKPEIN sy-vline 
WA_ROIRB0290_STR-LPRCLUKMEIN sy-vline 
WA_ROIRB0290_STR-SFDIFFGR sy-vline 
WA_ROIRB0290_STR-SFDIFFGRT sy-vline 
WA_ROIRB0290_STR-MDIFFGR sy-vline 
WA_ROIRB0290_STR-MDIFFGRT sy-vline      INTO ld_text SEPARATED BY SPACE.

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