ABAP Select data from SAP table ROIKSHIP_N into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIKSHIP_N
*  INTO TABLE @DATA(IT_ROIKSHIP_N2).
*--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_ROIKSHIP_N INDEX 1 INTO DATA(WA_ROIKSHIP_N2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIKSHIP_N>-COM_NUMBER = 1.
<ROIKSHIP_N>-TU_NUMBER = 1.
<ROIKSHIP_N>-MATNR = 1.
<ROIKSHIP_N>-VBTYP = 1.
<ROIKSHIP_N>-VBELN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIKSHIP_N-POSNR, sy-vline,
  WA_ROIKSHIP_N-TSTMP, sy-vline,
  WA_ROIKSHIP_N-TSTEH, sy-vline,
  WA_ROIKSHIP_N-TDICH, sy-vline,
  WA_ROIKSHIP_N-MTTMP, sy-vline,
  WA_ROIKSHIP_N-MTTEH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIKSHIP_N 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_ROIKSHIP_N 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_ROIKSHIP_N INTO WA_ROIKSHIP_N.


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

*Conversion exit MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_ROIKSHIP_N-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIKSHIP_N-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit MATN5, internal->external for field REB_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_ROIKSHIP_N-REB_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIKSHIP_N-REB_MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field REB_MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIKSHIP_N-REB_MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIKSHIP_N-REB_MATNR_LONG.
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_ROIKSHIP_N_STR, 
COM_NUMBER TYPE STRING,
TU_NUMBER TYPE STRING,
MATNR TYPE STRING,
VBTYP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
TSTMP TYPE STRING,
TSTEH TYPE STRING,
TDICH TYPE STRING,
MTTMP TYPE STRING,
MTTEH TYPE STRING,
BDICH TYPE STRING,
BSWCN TYPE STRING,
MCF TYPE STRING,
ABIND TYPE STRING,
HYDRO TYPE STRING,
TRQNT TYPE STRING,
TRUOM TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
EXTLID TYPE STRING,
EXTDELNR TYPE STRING,
OIHANTYP TYPE STRING,
CHARG TYPE STRING,
SEGNUM TYPE STRING,
PSGNUM TYPE STRING,
TD_ACTION TYPE STRING,
REB_MATNR TYPE STRING,
MATNR_LONG TYPE STRING,
REB_MATNR_LONG TYPE STRING,
VBTYP_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIKSHIP_N_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_ROIKSHIP_N_STR-COM_NUMBER sy-vline 
WA_ROIKSHIP_N_STR-TU_NUMBER sy-vline 
WA_ROIKSHIP_N_STR-MATNR sy-vline 
WA_ROIKSHIP_N_STR-VBTYP sy-vline 
WA_ROIKSHIP_N_STR-VBELN sy-vline 
WA_ROIKSHIP_N_STR-POSNR sy-vline 
WA_ROIKSHIP_N_STR-TSTMP sy-vline 
WA_ROIKSHIP_N_STR-TSTEH sy-vline 
WA_ROIKSHIP_N_STR-TDICH sy-vline 
WA_ROIKSHIP_N_STR-MTTMP sy-vline 
WA_ROIKSHIP_N_STR-MTTEH sy-vline 
WA_ROIKSHIP_N_STR-BDICH sy-vline 
WA_ROIKSHIP_N_STR-BSWCN sy-vline 
WA_ROIKSHIP_N_STR-MCF sy-vline 
WA_ROIKSHIP_N_STR-ABIND sy-vline 
WA_ROIKSHIP_N_STR-HYDRO sy-vline 
WA_ROIKSHIP_N_STR-TRQNT sy-vline 
WA_ROIKSHIP_N_STR-TRUOM sy-vline 
WA_ROIKSHIP_N_STR-WERKS sy-vline 
WA_ROIKSHIP_N_STR-LGORT sy-vline 
WA_ROIKSHIP_N_STR-EXTLID sy-vline 
WA_ROIKSHIP_N_STR-EXTDELNR sy-vline 
WA_ROIKSHIP_N_STR-OIHANTYP sy-vline 
WA_ROIKSHIP_N_STR-CHARG sy-vline 
WA_ROIKSHIP_N_STR-SEGNUM sy-vline 
WA_ROIKSHIP_N_STR-PSGNUM sy-vline 
WA_ROIKSHIP_N_STR-TD_ACTION sy-vline 
WA_ROIKSHIP_N_STR-REB_MATNR sy-vline 
WA_ROIKSHIP_N_STR-MATNR_LONG sy-vline 
WA_ROIKSHIP_N_STR-REB_MATNR_LONG sy-vline 
WA_ROIKSHIP_N_STR-VBTYP_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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