ABAP Select data from SAP table COPNGMMRDOBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COPNGMMRDOBJ
*  INTO TABLE @DATA(IT_COPNGMMRDOBJ2).
*--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_COPNGMMRDOBJ INDEX 1 INTO DATA(WA_COPNGMMRDOBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COPNGMMRDOBJ>-MANDT = 1.
<COPNGMMRDOBJ>-CASHFLOWID = 1.
<COPNGMMRDOBJ>-VALIDFROM = 1.
<COPNGMMRDOBJ>-BANKSTATEMENTSHORTID = 1.
<COPNGMMRDOBJ>-CASHMEMORECORDID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COPNGMMRDOBJ-VALUEDATE, sy-vline,
  WA_COPNGMMRDOBJ-BANKACCOUNTINTERNALID, sy-vline,
  WA_COPNGMMRDOBJ-AMOUNTINTRANSACTIONCURRENCY, sy-vline,
  WA_COPNGMMRDOBJ-PAYMENTNOTE, sy-vline,
  WA_COPNGMMRDOBJ-TRANSACTIONCURRENCY, sy-vline,
  WA_COPNGMMRDOBJ-MEMORECORDSHORTTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COPNGMMRDOBJ 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_COPNGMMRDOBJ 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_COPNGMMRDOBJ INTO WA_COPNGMMRDOBJ.


*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_COPNGMMRDOBJ_STR, 
MANDT TYPE STRING,
CASHFLOWID TYPE STRING,
VALIDFROM TYPE STRING,
BANKSTATEMENTSHORTID TYPE STRING,
CASHMEMORECORDID TYPE STRING,
VALUEDATE TYPE STRING,
BANKACCOUNTINTERNALID TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
PAYMENTNOTE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
MEMORECORDSHORTTEXT TYPE STRING,
PLANNINGLEVEL TYPE STRING,
MEMORECORDSTATISTICITEM TYPE STRING,
COMPANYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COPNGMMRDOBJ_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_COPNGMMRDOBJ_STR-MANDT sy-vline 
WA_COPNGMMRDOBJ_STR-CASHFLOWID sy-vline 
WA_COPNGMMRDOBJ_STR-VALIDFROM sy-vline 
WA_COPNGMMRDOBJ_STR-BANKSTATEMENTSHORTID sy-vline 
WA_COPNGMMRDOBJ_STR-CASHMEMORECORDID sy-vline 
WA_COPNGMMRDOBJ_STR-VALUEDATE sy-vline 
WA_COPNGMMRDOBJ_STR-BANKACCOUNTINTERNALID sy-vline 
WA_COPNGMMRDOBJ_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_COPNGMMRDOBJ_STR-PAYMENTNOTE sy-vline 
WA_COPNGMMRDOBJ_STR-TRANSACTIONCURRENCY sy-vline 
WA_COPNGMMRDOBJ_STR-MEMORECORDSHORTTEXT sy-vline 
WA_COPNGMMRDOBJ_STR-PLANNINGLEVEL sy-vline 
WA_COPNGMMRDOBJ_STR-MEMORECORDSTATISTICITEM sy-vline 
WA_COPNGMMRDOBJ_STR-COMPANYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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