ABAP Select data from SAP table CNV_CDMC_STRACRFC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_CDMC_STRACRFC
*  INTO TABLE @DATA(IT_CNV_CDMC_STRACRFC2).
*--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_CNV_CDMC_STRACRFC INDEX 1 INTO DATA(WA_CNV_CDMC_STRACRFC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_CDMC_STRACRFC>-TCODE = 1.
<CNV_CDMC_STRACRFC>-WPID = 1.
<CNV_CDMC_STRACRFC>-WPTYP = 1.
<CNV_CDMC_STRACRFC>-MANDT = 1.
<CNV_CDMC_STRACRFC>-UNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_CDMC_STRACRFC-TIME, sy-vline,
  WA_CNV_CDMC_STRACRFC-DURATION, sy-vline,
  WA_CNV_CDMC_STRACRFC-REPORT, sy-vline,
  WA_CNV_CDMC_STRACRFC-OBJECT, sy-vline,
  WA_CNV_CDMC_STRACRFC-OPERATION, sy-vline,
  WA_CNV_CDMC_STRACRFC-RETCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_CDMC_STRACRFC 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_CNV_CDMC_STRACRFC 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_CNV_CDMC_STRACRFC INTO WA_CNV_CDMC_STRACRFC.


*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_CNV_CDMC_STRACRFC_STR, 
TCODE TYPE STRING,
WPID TYPE STRING,
WPTYP TYPE STRING,
MANDT TYPE STRING,
UNAME TYPE STRING,
TIME TYPE STRING,
DURATION TYPE STRING,
REPORT TYPE STRING,
OBJECT TYPE STRING,
OPERATION TYPE STRING,
RETCODE TYPE STRING,
CON_NAME TYPE STRING,
STATEMENT TYPE STRING,
SERVERNAME TYPE STRING,
TRANS_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_CDMC_STRACRFC_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_CNV_CDMC_STRACRFC_STR-TCODE sy-vline 
WA_CNV_CDMC_STRACRFC_STR-WPID sy-vline 
WA_CNV_CDMC_STRACRFC_STR-WPTYP sy-vline 
WA_CNV_CDMC_STRACRFC_STR-MANDT sy-vline 
WA_CNV_CDMC_STRACRFC_STR-UNAME sy-vline 
WA_CNV_CDMC_STRACRFC_STR-TIME sy-vline 
WA_CNV_CDMC_STRACRFC_STR-DURATION sy-vline 
WA_CNV_CDMC_STRACRFC_STR-REPORT sy-vline 
WA_CNV_CDMC_STRACRFC_STR-OBJECT sy-vline 
WA_CNV_CDMC_STRACRFC_STR-OPERATION sy-vline 
WA_CNV_CDMC_STRACRFC_STR-RETCODE sy-vline 
WA_CNV_CDMC_STRACRFC_STR-CON_NAME sy-vline 
WA_CNV_CDMC_STRACRFC_STR-STATEMENT sy-vline 
WA_CNV_CDMC_STRACRFC_STR-SERVERNAME sy-vline 
WA_CNV_CDMC_STRACRFC_STR-TRANS_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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