ABAP Select data from SAP table ROIO_SP_TREE_SUNIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIO_SP_TREE_SUNIT
*  INTO TABLE @DATA(IT_ROIO_SP_TREE_SUNIT2).
*--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_ROIO_SP_TREE_SUNIT INDEX 1 INTO DATA(WA_ROIO_SP_TREE_SUNIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIO_SP_TREE_SUNIT>-EXIDV = 1.
<ROIO_SP_TREE_SUNIT>-EXIDA = 1.
<ROIO_SP_TREE_SUNIT>-ANZGL = 1.
<ROIO_SP_TREE_SUNIT>-SORTL = 1.
<ROIO_SP_TREE_SUNIT>-VEGR1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIO_SP_TREE_SUNIT-VEGR2, sy-vline,
  WA_ROIO_SP_TREE_SUNIT-VEGR3, sy-vline,
  WA_ROIO_SP_TREE_SUNIT-VEGR4, sy-vline,
  WA_ROIO_SP_TREE_SUNIT-VEGR5, sy-vline,
  WA_ROIO_SP_TREE_SUNIT-VHILM, sy-vline,
  WA_ROIO_SP_TREE_SUNIT-GEWTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIO_SP_TREE_SUNIT 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_ROIO_SP_TREE_SUNIT 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_ROIO_SP_TREE_SUNIT INTO WA_ROIO_SP_TREE_SUNIT.


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

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

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

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

*Conversion exit ALPHA, internal->external for field OIO_CNTNR_TYP_CD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIO_SP_TREE_SUNIT-OIO_CNTNR_TYP_CD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIO_SP_TREE_SUNIT-OIO_CNTNR_TYP_CD.
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_ROIO_SP_TREE_SUNIT_STR, 
EXIDV TYPE STRING,
EXIDA TYPE STRING,
ANZGL TYPE STRING,
SORTL TYPE STRING,
VEGR1 TYPE STRING,
VEGR2 TYPE STRING,
VEGR3 TYPE STRING,
VEGR4 TYPE STRING,
VEGR5 TYPE STRING,
VHILM TYPE STRING,
GEWTO TYPE STRING,
VOLTO TYPE STRING,
VOLEH_MAX TYPE STRING,
GEWEI_MAX TYPE STRING,
INHALT TYPE STRING,
VHART TYPE STRING,
MAGRV TYPE STRING,
OIO_CNTNR_TYP_CD TYPE STRING,
OIO_CNTNR_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIO_SP_TREE_SUNIT_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_ROIO_SP_TREE_SUNIT_STR-EXIDV sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-EXIDA sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-ANZGL sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-SORTL sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VEGR1 sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VEGR2 sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VEGR3 sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VEGR4 sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VEGR5 sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VHILM sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-GEWTO sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VOLTO sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VOLEH_MAX sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-GEWEI_MAX sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-INHALT sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-VHART sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-MAGRV sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-OIO_CNTNR_TYP_CD sy-vline 
WA_ROIO_SP_TREE_SUNIT_STR-OIO_CNTNR_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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