ABAP Select data from SAP table ROIJTIC_RU_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJTIC_RU_H
*  INTO TABLE @DATA(IT_ROIJTIC_RU_H2).
*--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_ROIJTIC_RU_H INDEX 1 INTO DATA(WA_ROIJTIC_RU_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJTIC_RU_H>-EXTTKTNR = 1.
<ROIJTIC_RU_H>-TKTSTATUSRU = 1.
<ROIJTIC_RU_H>-CHANGENR = 1.
<ROIJTIC_RU_H>-DELIVERYTYP = 1.
<ROIJTIC_RU_H>-DISPATCHTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJTIC_RU_H-SENDSPEED, sy-vline,
  WA_ROIJTIC_RU_H-PAYMENTLOC, sy-vline,
  WA_ROIJTIC_RU_H-PAYMENTLOCTYP, sy-vline,
  WA_ROIJTIC_RU_H-PAYMENTTYP, sy-vline,
  WA_ROIJTIC_RU_H-CARGOTYP, sy-vline,
  WA_ROIJTIC_RU_H-SCALETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJTIC_RU_H 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_ROIJTIC_RU_H 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_ROIJTIC_RU_H INTO WA_ROIJTIC_RU_H.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ROIJTIC_RU_H_STR, 
EXTTKTNR TYPE STRING,
TKTSTATUSRU TYPE STRING,
CHANGENR TYPE STRING,
DELIVERYTYP TYPE STRING,
DISPATCHTYP TYPE STRING,
SENDSPEED TYPE STRING,
PAYMENTLOC TYPE STRING,
PAYMENTLOCTYP TYPE STRING,
PAYMENTTYP TYPE STRING,
CARGOTYP TYPE STRING,
SCALETYPE TYPE STRING,
FREIGHT_VALUE TYPE STRING,
FREIGHT_WAERS TYPE STRING,
RESPPARTY TYPE STRING,
SEND_TGNL TYPE STRING,
RECV_TGNL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJTIC_RU_H_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_ROIJTIC_RU_H_STR-EXTTKTNR sy-vline 
WA_ROIJTIC_RU_H_STR-TKTSTATUSRU sy-vline 
WA_ROIJTIC_RU_H_STR-CHANGENR sy-vline 
WA_ROIJTIC_RU_H_STR-DELIVERYTYP sy-vline 
WA_ROIJTIC_RU_H_STR-DISPATCHTYP sy-vline 
WA_ROIJTIC_RU_H_STR-SENDSPEED sy-vline 
WA_ROIJTIC_RU_H_STR-PAYMENTLOC sy-vline 
WA_ROIJTIC_RU_H_STR-PAYMENTLOCTYP sy-vline 
WA_ROIJTIC_RU_H_STR-PAYMENTTYP sy-vline 
WA_ROIJTIC_RU_H_STR-CARGOTYP sy-vline 
WA_ROIJTIC_RU_H_STR-SCALETYPE sy-vline 
WA_ROIJTIC_RU_H_STR-FREIGHT_VALUE sy-vline 
WA_ROIJTIC_RU_H_STR-FREIGHT_WAERS sy-vline 
WA_ROIJTIC_RU_H_STR-RESPPARTY sy-vline 
WA_ROIJTIC_RU_H_STR-SEND_TGNL sy-vline 
WA_ROIJTIC_RU_H_STR-RECV_TGNL sy-vline      INTO ld_text SEPARATED BY SPACE.

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