ABAP Select data from SAP table ROIJNOMH_O into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJNOMH_O
*  INTO TABLE @DATA(IT_ROIJNOMH_O2).
*--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_ROIJNOMH_O INDEX 1 INTO DATA(WA_ROIJNOMH_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJNOMH_O>-EV_SEQ_UNI = 1.
<ROIJNOMH_O>-VSART = 1.
<ROIJNOMH_O>-SHTYPE = 1.
<ROIJNOMH_O>-VEHID = 1.
<ROIJNOMH_O>-TSSUOMV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJNOMH_O-TSSUOMM, sy-vline,
  WA_ROIJNOMH_O-CYCPERD, sy-vline,
  WA_ROIJNOMH_O-CYCPUOM, sy-vline,
  WA_ROIJNOMH_O-CARRIER, sy-vline,
  WA_ROIJNOMH_O-WERK, sy-vline,
  WA_ROIJNOMH_O-LGORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJNOMH_O 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_ROIJNOMH_O 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_ROIJNOMH_O INTO WA_ROIJNOMH_O.


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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field BULTOLUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIJNOMH_O-BULTOLUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJNOMH_O-BULTOLUOM.
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_ROIJNOMH_O_STR, 
EV_SEQ_UNI TYPE STRING,
VSART TYPE STRING,
SHTYPE TYPE STRING,
VEHID TYPE STRING,
TSSUOMV TYPE STRING,
TSSUOMM TYPE STRING,
CYCPERD TYPE STRING,
CYCPUOM TYPE STRING,
CARRIER TYPE STRING,
WERK TYPE STRING,
LGORT TYPE STRING,
NOMMSK TYPE STRING,
SHIPPER TYPE STRING,
CONLTM TYPE STRING,
CONLUOM TYPE STRING,
TPLST TYPE STRING,
UNLIMITED TYPE STRING,
BOTOL TYPE STRING,
BUTOL TYPE STRING,
BOTOLABS TYPE STRING,
BUTOLABS TYPE STRING,
BULTOLUOM TYPE STRING,
BALCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJNOMH_O_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_ROIJNOMH_O_STR-EV_SEQ_UNI sy-vline 
WA_ROIJNOMH_O_STR-VSART sy-vline 
WA_ROIJNOMH_O_STR-SHTYPE sy-vline 
WA_ROIJNOMH_O_STR-VEHID sy-vline 
WA_ROIJNOMH_O_STR-TSSUOMV sy-vline 
WA_ROIJNOMH_O_STR-TSSUOMM sy-vline 
WA_ROIJNOMH_O_STR-CYCPERD sy-vline 
WA_ROIJNOMH_O_STR-CYCPUOM sy-vline 
WA_ROIJNOMH_O_STR-CARRIER sy-vline 
WA_ROIJNOMH_O_STR-WERK sy-vline 
WA_ROIJNOMH_O_STR-LGORT sy-vline 
WA_ROIJNOMH_O_STR-NOMMSK sy-vline 
WA_ROIJNOMH_O_STR-SHIPPER sy-vline 
WA_ROIJNOMH_O_STR-CONLTM sy-vline 
WA_ROIJNOMH_O_STR-CONLUOM sy-vline 
WA_ROIJNOMH_O_STR-TPLST sy-vline 
WA_ROIJNOMH_O_STR-UNLIMITED sy-vline 
WA_ROIJNOMH_O_STR-BOTOL sy-vline 
WA_ROIJNOMH_O_STR-BUTOL sy-vline 
WA_ROIJNOMH_O_STR-BOTOLABS sy-vline 
WA_ROIJNOMH_O_STR-BUTOLABS sy-vline 
WA_ROIJNOMH_O_STR-BULTOLUOM sy-vline 
WA_ROIJNOMH_O_STR-BALCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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