ABAP Select data from SAP table CRMS4IUVCMODOC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMS4IUVCMODOC 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 CRMS4IUVCMODOC. 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 CRMS4IUVCMODOC 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_CRMS4IUVCMODOC TYPE STANDARD TABLE OF CRMS4IUVCMODOC,
      WA_CRMS4IUVCMODOC TYPE CRMS4IUVCMODOC,
      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: <CRMS4IUVCMODOC> TYPE CRMS4IUVCMODOC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4IUVCMODOC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4IUVCMODOC
  INTO TABLE IT_CRMS4IUVCMODOC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4IUVCMODOC
*  INTO TABLE @DATA(IT_CRMS4IUVCMODOC2).
*--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_CRMS4IUVCMODOC INDEX 1 INTO DATA(WA_CRMS4IUVCMODOC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4IUVCMODOC ASSIGNING <CRMS4IUVCMODOC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4IUVCMODOC>-MANDT = 1.
<CRMS4IUVCMODOC>-AUSZBELEG = 1.
<CRMS4IUVCMODOC>-VKONT = 1.
<CRMS4IUVCMODOC>-KUNDE = 1.
<CRMS4IUVCMODOC>-DEPARTUREDATE = 1.

ENDLOOP.

LOOP AT IT_CRMS4IUVCMODOC INTO WA_CRMS4IUVCMODOC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4IUVCMODOC-STORAUSZ, sy-vline,
  WA_CRMS4IUVCMODOC-ERDAT, sy-vline,
  WA_CRMS4IUVCMODOC-ERNAM, sy-vline,
  WA_CRMS4IUVCMODOC-AEDAT, sy-vline,
  WA_CRMS4IUVCMODOC-AENAM, sy-vline,
  WA_CRMS4IUVCMODOC-BEGRU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4IUVCMODOC 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_CRMS4IUVCMODOC 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_CRMS4IUVCMODOC INTO WA_CRMS4IUVCMODOC.


*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 AUSZBELEG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4IUVCMODOC-AUSZBELEG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4IUVCMODOC-AUSZBELEG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4IUVCMODOC-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4IUVCMODOC-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNDE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4IUVCMODOC-KUNDE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4IUVCMODOC-KUNDE.
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_CRMS4IUVCMODOC_STR, 
MANDT TYPE STRING,
AUSZBELEG TYPE STRING,
VKONT TYPE STRING,
KUNDE TYPE STRING,
DEPARTUREDATE TYPE STRING,
STORAUSZ TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4IUVCMODOC_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_CRMS4IUVCMODOC_STR-MANDT sy-vline 
WA_CRMS4IUVCMODOC_STR-AUSZBELEG sy-vline 
WA_CRMS4IUVCMODOC_STR-VKONT sy-vline 
WA_CRMS4IUVCMODOC_STR-KUNDE sy-vline 
WA_CRMS4IUVCMODOC_STR-DEPARTUREDATE sy-vline 
WA_CRMS4IUVCMODOC_STR-STORAUSZ sy-vline 
WA_CRMS4IUVCMODOC_STR-ERDAT sy-vline 
WA_CRMS4IUVCMODOC_STR-ERNAM sy-vline 
WA_CRMS4IUVCMODOC_STR-AEDAT sy-vline 
WA_CRMS4IUVCMODOC_STR-AENAM sy-vline 
WA_CRMS4IUVCMODOC_STR-BEGRU sy-vline 
WA_CRMS4IUVCMODOC_STR-LOEVM sy-vline      INTO ld_text SEPARATED BY SPACE.

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