ABAP Select data from SAP table CMMOI_S_RO_NOMINATION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMOI_S_RO_NOMINATION
*  INTO TABLE @DATA(IT_CMMOI_S_RO_NOMINATION2).
*--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_CMMOI_S_RO_NOMINATION INDEX 1 INTO DATA(WA_CMMOI_S_RO_NOMINATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMOI_S_RO_NOMINATION>-NOMTK = 1.
<CMMOI_S_RO_NOMINATION>-NOMIT = 1.
<CMMOI_S_RO_NOMINATION>-NOMCL = 1.
<CMMOI_S_RO_NOMINATION>-NOMTYP = 1.
<CMMOI_S_RO_NOMINATION>-NOMNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMOI_S_RO_NOMINATION-S_MATNR, sy-vline,
  WA_CMMOI_S_RO_NOMINATION-D_MATNR, sy-vline,
  WA_CMMOI_S_RO_NOMINATION-NMSHIPPER, sy-vline,
  WA_CMMOI_S_RO_NOMINATION-NMCARRIER, sy-vline,
  WA_CMMOI_S_RO_NOMINATION-ISTAT, sy-vline,
  WA_CMMOI_S_RO_NOMINATION-DOCIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMOI_S_RO_NOMINATION 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_CMMOI_S_RO_NOMINATION 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_CMMOI_S_RO_NOMINATION INTO WA_CMMOI_S_RO_NOMINATION.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LASTUPDTDNOMINATIONREFDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMOI_S_RO_NOMINATION-LASTUPDTDNOMINATIONREFDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMOI_S_RO_NOMINATION-LASTUPDTDNOMINATIONREFDOCUMENT.
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_CMMOI_S_RO_NOMINATION_STR, 
NOMTK TYPE STRING,
NOMIT TYPE STRING,
NOMCL TYPE STRING,
NOMTYP TYPE STRING,
NOMNR TYPE STRING,
S_MATNR TYPE STRING,
D_MATNR TYPE STRING,
NMSHIPPER TYPE STRING,
NMCARRIER TYPE STRING,
ISTAT TYPE STRING,
DOCIND TYPE STRING,
SITYP TYPE STRING,
DOCNR TYPE STRING,
DOCITM TYPE STRING,
DOCSCHEDLN TYPE STRING,
LOCSL TYPE STRING,
TSYST TYPE STRING,
ILOCK TYPE STRING,
LOCID TYPE STRING,
LASTUPDTDREFDOCINDICATORCODE TYPE STRING,
LASTUPDTDNOMINATIONREFDOCUMENT TYPE STRING,
LASTUPDTDNOMINATIONREFDOCITEM TYPE STRING,
LASTUPDTDNOMINATIONISCOMPLETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMOI_S_RO_NOMINATION_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_CMMOI_S_RO_NOMINATION_STR-NOMTK sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-NOMIT sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-NOMCL sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-NOMTYP sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-NOMNR sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-S_MATNR sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-D_MATNR sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-NMSHIPPER sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-NMCARRIER sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-ISTAT sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-DOCIND sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-SITYP sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-DOCNR sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-DOCITM sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-DOCSCHEDLN sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-LOCSL sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-TSYST sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-ILOCK sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-LOCID sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-LASTUPDTDREFDOCINDICATORCODE sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-LASTUPDTDNOMINATIONREFDOCUMENT sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-LASTUPDTDNOMINATIONREFDOCITEM sy-vline 
WA_CMMOI_S_RO_NOMINATION_STR-LASTUPDTDNOMINATIONISCOMPLETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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