ABAP Select data from SAP table CRMT_COMPONENT_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_COMPONENT_INFO
*  INTO TABLE @DATA(IT_CRMT_COMPONENT_INFO2).
*--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_CRMT_COMPONENT_INFO INDEX 1 INTO DATA(WA_CRMT_COMPONENT_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_COMPONENT_INFO>-OBJECT_NAME = 1.
<CRMT_COMPONENT_INFO>-KIND = 1.
<CRMT_COMPONENT_INFO>-COMPLEX = 1.
<CRMT_COMPONENT_INFO>-DATABASE_NAME = 1.
<CRMT_COMPONENT_INFO>-NAME_COM_STRUC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_COMPONENT_INFO-NAME_SET_STRUC, sy-vline,
  WA_CRMT_COMPONENT_INFO-NAME_COM_TAB, sy-vline,
  WA_CRMT_COMPONENT_INFO-NAME_WRK_STRUC, sy-vline,
  WA_CRMT_COMPONENT_INFO-NAME_WRK_TAB, sy-vline,
  WA_CRMT_COMPONENT_INFO-NAME_DB_WRK_STRU, sy-vline,
  WA_CRMT_COMPONENT_INFO-NAME_DB_WRK_TAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_COMPONENT_INFO 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_CRMT_COMPONENT_INFO 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_CRMT_COMPONENT_INFO INTO WA_CRMT_COMPONENT_INFO.


*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 CDOC_OBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_COMPONENT_INFO-CDOC_OBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_COMPONENT_INFO-CDOC_OBJECT.
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_CRMT_COMPONENT_INFO_STR, 
OBJECT_NAME TYPE STRING,
KIND TYPE STRING,
COMPLEX TYPE STRING,
DATABASE_NAME TYPE STRING,
NAME_COM_STRUC TYPE STRING,
NAME_SET_STRUC TYPE STRING,
NAME_COM_TAB TYPE STRING,
NAME_WRK_STRUC TYPE STRING,
NAME_WRK_TAB TYPE STRING,
NAME_DB_WRK_STRU TYPE STRING,
NAME_DB_WRK_TAB TYPE STRING,
NAME_WINGUI_STR TYPE STRING,
NAME_WINGUI_TAB TYPE STRING,
NAME_PCUI_STR TYPE STRING,
NAME_PCUI_IL_STR TYPE STRING,
NAME_UPDATE_FUNC TYPE STRING,
NAME_DU_TAB TYPE STRING,
FRGTYPE_ID TYPE STRING,
KEYFIELDS TYPE STRING,
FIELDS TYPE STRING,
KEYFIELDS_DB TYPE STRING,
SCREEN_NUMBER TYPE STRING,
SCREEN_PROG TYPE STRING,
NAME_BDOC_STRUC TYPE STRING,
NAME_COMPONENT TYPE STRING,
NAME_EXT_STR TYPE STRING,
NAME_UI_EXT_STR TYPE STRING,
ORG_UNIT TYPE STRING,
NAME_CD_STRUC TYPE STRING,
NAME_CDV_STRUC TYPE STRING,
CDOC_OBJECT TYPE STRING,
CDOC_FUNCNAME TYPE STRING,
ORDER_ONLY TYPE STRING,
CUSTOMER_OBJECT TYPE STRING,
PROFILE_RELEVANT TYPE STRING,
NAME_BAPI_STRUC TYPE STRING,
NEW_CHNGDOC_INTF TYPE STRING,
NO_CHECK TYPE STRING,
GENERIC_API TYPE STRING,
NAME_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_COMPONENT_INFO_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_CRMT_COMPONENT_INFO_STR-OBJECT_NAME sy-vline 
WA_CRMT_COMPONENT_INFO_STR-KIND sy-vline 
WA_CRMT_COMPONENT_INFO_STR-COMPLEX sy-vline 
WA_CRMT_COMPONENT_INFO_STR-DATABASE_NAME sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_COM_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_SET_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_COM_TAB sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_WRK_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_WRK_TAB sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_DB_WRK_STRU sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_DB_WRK_TAB sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_WINGUI_STR sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_WINGUI_TAB sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_PCUI_STR sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_PCUI_IL_STR sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_UPDATE_FUNC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_DU_TAB sy-vline 
WA_CRMT_COMPONENT_INFO_STR-FRGTYPE_ID sy-vline 
WA_CRMT_COMPONENT_INFO_STR-KEYFIELDS sy-vline 
WA_CRMT_COMPONENT_INFO_STR-FIELDS sy-vline 
WA_CRMT_COMPONENT_INFO_STR-KEYFIELDS_DB sy-vline 
WA_CRMT_COMPONENT_INFO_STR-SCREEN_NUMBER sy-vline 
WA_CRMT_COMPONENT_INFO_STR-SCREEN_PROG sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_BDOC_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_COMPONENT sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_EXT_STR sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_UI_EXT_STR sy-vline 
WA_CRMT_COMPONENT_INFO_STR-ORG_UNIT sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_CD_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_CDV_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-CDOC_OBJECT sy-vline 
WA_CRMT_COMPONENT_INFO_STR-CDOC_FUNCNAME sy-vline 
WA_CRMT_COMPONENT_INFO_STR-ORDER_ONLY sy-vline 
WA_CRMT_COMPONENT_INFO_STR-CUSTOMER_OBJECT sy-vline 
WA_CRMT_COMPONENT_INFO_STR-PROFILE_RELEVANT sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_BAPI_STRUC sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NEW_CHNGDOC_INTF sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NO_CHECK sy-vline 
WA_CRMT_COMPONENT_INFO_STR-GENERIC_API sy-vline 
WA_CRMT_COMPONENT_INFO_STR-NAME_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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