ABAP Select data from SAP table CRMT_IBASE_1O_COMP_WRK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_IBASE_1O_COMP_WRK 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_IBASE_1O_COMP_WRK. 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_IBASE_1O_COMP_WRK 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_IBASE_1O_COMP_WRK TYPE STANDARD TABLE OF CRMT_IBASE_1O_COMP_WRK,
      WA_CRMT_IBASE_1O_COMP_WRK TYPE CRMT_IBASE_1O_COMP_WRK,
      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_IBASE_1O_COMP_WRK> TYPE CRMT_IBASE_1O_COMP_WRK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMT_IBASE_1O_COMP_WRK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMT_IBASE_1O_COMP_WRK
  INTO TABLE IT_CRMT_IBASE_1O_COMP_WRK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_IBASE_1O_COMP_WRK
*  INTO TABLE @DATA(IT_CRMT_IBASE_1O_COMP_WRK2).
*--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_IBASE_1O_COMP_WRK INDEX 1 INTO DATA(WA_CRMT_IBASE_1O_COMP_WRK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMT_IBASE_1O_COMP_WRK ASSIGNING <CRMT_IBASE_1O_COMP_WRK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_IBASE_1O_COMP_WRK>-HEADER_PROC_TYPE = 1.
<CRMT_IBASE_1O_COMP_WRK>-ITEM_PROC_IDENT = 1.
<CRMT_IBASE_1O_COMP_WRK>-ITEM_PROC_IDENT_TEXT = 1.
<CRMT_IBASE_1O_COMP_WRK>-ITEM_PROC_TYPE = 1.
<CRMT_IBASE_1O_COMP_WRK>-SELECTED = 1.

ENDLOOP.

LOOP AT IT_CRMT_IBASE_1O_COMP_WRK INTO WA_CRMT_IBASE_1O_COMP_WRK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_IBASE_1O_COMP_WRK-TRANSFERED, sy-vline,
  WA_CRMT_IBASE_1O_COMP_WRK-DROP_DOWN_HANDLE, sy-vline,
  WA_CRMT_IBASE_1O_COMP_WRK-CELLTAB, sy-vline,
  WA_CRMT_IBASE_1O_COMP_WRK-GUID_COMP, sy-vline,
  WA_CRMT_IBASE_1O_COMP_WRK-GUID_COMPC, sy-vline,
  WA_CRMT_IBASE_1O_COMP_WRK-INSTANCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_IBASE_1O_COMP_WRK 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_IBASE_1O_COMP_WRK 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_IBASE_1O_COMP_WRK INTO WA_CRMT_IBASE_1O_COMP_WRK.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CRMT_IBASE_1O_COMP_WRK_STR, 
HEADER_PROC_TYPE TYPE STRING,
ITEM_PROC_IDENT TYPE STRING,
ITEM_PROC_IDENT_TEXT TYPE STRING,
ITEM_PROC_TYPE TYPE STRING,
SELECTED TYPE STRING,
TRANSFERED TYPE STRING,
DROP_DOWN_HANDLE TYPE STRING,
CELLTAB TYPE STRING,
GUID_COMP TYPE STRING,
GUID_COMPC TYPE STRING,
INSTANCE TYPE STRING,
IBASE TYPE STRING,
OBJECTTYP TYPE STRING,
EXTOBJTYP TYPE STRING,
OBJECT_GUID TYPE STRING,
DEVICEID TYPE STRING,
DESCR TYPE STRING,
PRODUCT_ID TYPE STRING,
PRODUCT_GUID TYPE STRING,
OBJECT_ID TYPE STRING,
OBJECT_FAMILY TYPE STRING,
LOGSYS TYPE STRING,
PRODUCT_TYPE TYPE STRING,
IBASE_AS_A_COMP TYPE STRING,
DESCR_COMP TYPE STRING,
ADDINFO TYPE STRING,
AMOUNT TYPE STRING,
UNIT TYPE STRING,
SORTF TYPE STRING,
POSNO TYPE STRING,
OBJNR TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
VOID TYPE STRING,
DESCR_EXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_IBASE_1O_COMP_WRK_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_IBASE_1O_COMP_WRK_STR-HEADER_PROC_TYPE sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-ITEM_PROC_IDENT sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-ITEM_PROC_IDENT_TEXT sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-ITEM_PROC_TYPE sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-SELECTED sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-TRANSFERED sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-DROP_DOWN_HANDLE sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-CELLTAB sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-GUID_COMP sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-GUID_COMPC sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-INSTANCE sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-IBASE sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-OBJECTTYP sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-EXTOBJTYP sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-OBJECT_GUID sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-DEVICEID sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-DESCR sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-PRODUCT_ID sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-PRODUCT_GUID sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-OBJECT_ID sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-OBJECT_FAMILY sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-LOGSYS sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-PRODUCT_TYPE sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-IBASE_AS_A_COMP sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-DESCR_COMP sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-ADDINFO sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-AMOUNT sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-UNIT sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-SORTF sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-POSNO sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-OBJNR sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-VALFR sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-VALTO sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-VOID sy-vline 
WA_CRMT_IBASE_1O_COMP_WRK_STR-DESCR_EXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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