ABAP Select data from SAP table ROIKSD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIKSD
*  INTO TABLE @DATA(IT_ROIKSD2).
*--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_ROIKSD INDEX 1 INTO DATA(WA_ROIKSD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIKSD>-SHNUMBER = 1.
<ROIKSD>-TRIP = 1.
<ROIKSD>-OIG_SSTSF = 1.
<ROIKSD>-VEHICLE = 1.
<ROIKSD>-VEH_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIKSD-COMPPL_INDI, sy-vline,
  WA_ROIKSD-LOADPLANT, sy-vline,
  WA_ROIKSD-SHIPTO, sy-vline,
  WA_ROIKSD-SHIPTONAME, sy-vline,
  WA_ROIKSD-DOC_TYP, sy-vline,
  WA_ROIKSD-DLNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIKSD 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_ROIKSD 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_ROIKSD INTO WA_ROIKSD.


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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VEH_SCREL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIKSD-VEH_SCREL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIKSD-VEH_SCREL.
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_ROIKSD_STR, 
SHNUMBER TYPE STRING,
TRIP TYPE STRING,
OIG_SSTSF TYPE STRING,
VEHICLE TYPE STRING,
VEH_TEXT TYPE STRING,
COMPPL_INDI TYPE STRING,
LOADPLANT TYPE STRING,
SHIPTO TYPE STRING,
SHIPTONAME TYPE STRING,
DOC_TYP TYPE STRING,
DLNUMBER TYPE STRING,
DLSEQ TYPE STRING,
LOAD_INDI TYPE STRING,
DISCH_INDI TYPE STRING,
VGBEL TYPE STRING,
STATUS TYPE STRING,
LED TYPE STRING,
IND TYPE STRING,
DLVOLUME TYPE STRING,
DLUOM TYPE STRING,
NDRIVETIME TYPE STRING,
DRIVETIME TYPE STRING,
DISTANCE TYPE STRING,
DISTUOM TYPE STRING,
ETA TYPE STRING,
EDA TYPE STRING,
CHECK_STATUS TYPE STRING,
STATUS_ICON TYPE STRING,
RADIO_DEL TYPE STRING,
RADIO_RES TYPE STRING,
RADIO_SN TYPE STRING,
SHIFT TYPE STRING,
DRIVERCODE TYPE STRING,
SHTYPE TYPE STRING,
START_TIME TYPE STRING,
SH_LENGTH TYPE STRING,
CHG_REASON TYPE STRING,
LOADDATE TYPE STRING,
VEH_SCREL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIKSD_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_ROIKSD_STR-SHNUMBER sy-vline 
WA_ROIKSD_STR-TRIP sy-vline 
WA_ROIKSD_STR-OIG_SSTSF sy-vline 
WA_ROIKSD_STR-VEHICLE sy-vline 
WA_ROIKSD_STR-VEH_TEXT sy-vline 
WA_ROIKSD_STR-COMPPL_INDI sy-vline 
WA_ROIKSD_STR-LOADPLANT sy-vline 
WA_ROIKSD_STR-SHIPTO sy-vline 
WA_ROIKSD_STR-SHIPTONAME sy-vline 
WA_ROIKSD_STR-DOC_TYP sy-vline 
WA_ROIKSD_STR-DLNUMBER sy-vline 
WA_ROIKSD_STR-DLSEQ sy-vline 
WA_ROIKSD_STR-LOAD_INDI sy-vline 
WA_ROIKSD_STR-DISCH_INDI sy-vline 
WA_ROIKSD_STR-VGBEL sy-vline 
WA_ROIKSD_STR-STATUS sy-vline 
WA_ROIKSD_STR-LED sy-vline 
WA_ROIKSD_STR-IND sy-vline 
WA_ROIKSD_STR-DLVOLUME sy-vline 
WA_ROIKSD_STR-DLUOM sy-vline 
WA_ROIKSD_STR-NDRIVETIME sy-vline 
WA_ROIKSD_STR-DRIVETIME sy-vline 
WA_ROIKSD_STR-DISTANCE sy-vline 
WA_ROIKSD_STR-DISTUOM sy-vline 
WA_ROIKSD_STR-ETA sy-vline 
WA_ROIKSD_STR-EDA sy-vline 
WA_ROIKSD_STR-CHECK_STATUS sy-vline 
WA_ROIKSD_STR-STATUS_ICON sy-vline 
WA_ROIKSD_STR-RADIO_DEL sy-vline 
WA_ROIKSD_STR-RADIO_RES sy-vline 
WA_ROIKSD_STR-RADIO_SN sy-vline 
WA_ROIKSD_STR-SHIFT sy-vline 
WA_ROIKSD_STR-DRIVERCODE sy-vline 
WA_ROIKSD_STR-SHTYPE sy-vline 
WA_ROIKSD_STR-START_TIME sy-vline 
WA_ROIKSD_STR-SH_LENGTH sy-vline 
WA_ROIKSD_STR-CHG_REASON sy-vline 
WA_ROIKSD_STR-LOADDATE sy-vline 
WA_ROIKSD_STR-VEH_SCREL sy-vline      INTO ld_text SEPARATED BY SPACE.

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