ABAP Select data from SAP table ROIJNOMH_R into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIJNOMH_R 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_R. 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_R 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_R TYPE STANDARD TABLE OF ROIJNOMH_R,
      WA_ROIJNOMH_R TYPE ROIJNOMH_R,
      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_R> TYPE ROIJNOMH_R.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJNOMH_R
*  INTO TABLE @DATA(IT_ROIJNOMH_R2).
*--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_R INDEX 1 INTO DATA(WA_ROIJNOMH_R2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJNOMH_R>-NOMCL = 1.
<ROIJNOMH_R>-NOMTYP = 1.
<ROIJNOMH_R>-BUSTYP = 1.
<ROIJNOMH_R>-NOMNR = 1.
<ROIJNOMH_R>-NOMST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJNOMH_R-NMSHTYPE, sy-vline,
  WA_ROIJNOMH_R-NMBALCH, sy-vline,
  WA_ROIJNOMH_R-STAGES_ID, sy-vline,
  WA_ROIJNOMH_R-WORKLIST, sy-vline,
  WA_ROIJNOMH_R-SENTDAT, sy-vline,
  WA_ROIJNOMH_R-SENTTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJNOMH_R 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_R 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_R INTO WA_ROIJNOMH_R.


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

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

*Conversion exit ALPHA, internal->external for field TKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIJNOMH_R-TKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJNOMH_R-TKNUM.
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_R_STR, 
NOMCL TYPE STRING,
NOMTYP TYPE STRING,
BUSTYP TYPE STRING,
NOMNR TYPE STRING,
NOMST TYPE STRING,
NMSHTYPE TYPE STRING,
NMBALCH TYPE STRING,
STAGES_ID TYPE STRING,
WORKLIST TYPE STRING,
SENTDAT TYPE STRING,
SENTTIME TYPE STRING,
SENTNAM TYPE STRING,
ITEMS TYPE STRING,
COUNTER1 TYPE STRING,
COUNTER2 TYPE STRING,
COUNTER3 TYPE STRING,
COUNTER4 TYPE STRING,
COUNTER5 TYPE STRING,
COUNTER6 TYPE STRING,
APO_SHIPMENT_ID TYPE STRING,
APO_SHIPMENT_NUM TYPE STRING,
NMBLOCK TYPE STRING,
NOMTYPDESC TYPE STRING,
SHTYP TYPE STRING,
TKNUM TYPE STRING,
LOV_GL TYPE STRING,
NMSELECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJNOMH_R_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_R_STR-NOMCL sy-vline 
WA_ROIJNOMH_R_STR-NOMTYP sy-vline 
WA_ROIJNOMH_R_STR-BUSTYP sy-vline 
WA_ROIJNOMH_R_STR-NOMNR sy-vline 
WA_ROIJNOMH_R_STR-NOMST sy-vline 
WA_ROIJNOMH_R_STR-NMSHTYPE sy-vline 
WA_ROIJNOMH_R_STR-NMBALCH sy-vline 
WA_ROIJNOMH_R_STR-STAGES_ID sy-vline 
WA_ROIJNOMH_R_STR-WORKLIST sy-vline 
WA_ROIJNOMH_R_STR-SENTDAT sy-vline 
WA_ROIJNOMH_R_STR-SENTTIME sy-vline 
WA_ROIJNOMH_R_STR-SENTNAM sy-vline 
WA_ROIJNOMH_R_STR-ITEMS sy-vline 
WA_ROIJNOMH_R_STR-COUNTER1 sy-vline 
WA_ROIJNOMH_R_STR-COUNTER2 sy-vline 
WA_ROIJNOMH_R_STR-COUNTER3 sy-vline 
WA_ROIJNOMH_R_STR-COUNTER4 sy-vline 
WA_ROIJNOMH_R_STR-COUNTER5 sy-vline 
WA_ROIJNOMH_R_STR-COUNTER6 sy-vline 
WA_ROIJNOMH_R_STR-APO_SHIPMENT_ID sy-vline 
WA_ROIJNOMH_R_STR-APO_SHIPMENT_NUM sy-vline 
WA_ROIJNOMH_R_STR-NMBLOCK sy-vline 
WA_ROIJNOMH_R_STR-NOMTYPDESC sy-vline 
WA_ROIJNOMH_R_STR-SHTYP sy-vline 
WA_ROIJNOMH_R_STR-TKNUM sy-vline 
WA_ROIJNOMH_R_STR-LOV_GL sy-vline 
WA_ROIJNOMH_R_STR-NMSELECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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