ABAP Select data from SAP table RNCOP_HISTORY 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 RNCOP_HISTORY 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 RNCOP_HISTORY. 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 RNCOP_HISTORY 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_RNCOP_HISTORY TYPE STANDARD TABLE OF RNCOP_HISTORY,
      WA_RNCOP_HISTORY TYPE RNCOP_HISTORY,
      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: <RNCOP_HISTORY> TYPE RNCOP_HISTORY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNCOP_HISTORY
*  INTO TABLE @DATA(IT_RNCOP_HISTORY2).
*--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_RNCOP_HISTORY INDEX 1 INTO DATA(WA_RNCOP_HISTORY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNCOP_HISTORY>-FALNR = 1.
<RNCOP_HISTORY>-PATNR = 1.
<RNCOP_HISTORY>-LFDBEW = 1.
<RNCOP_HISTORY>-BWART = 1.
<RNCOP_HISTORY>-BWATX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNCOP_HISTORY-BWIDT, sy-vline,
  WA_RNCOP_HISTORY-BWIZT, sy-vline,
  WA_RNCOP_HISTORY-KV, sy-vline,
  WA_RNCOP_HISTORY-AMBOP, sy-vline,
  WA_RNCOP_HISTORY-VERWE, sy-vline,
  WA_RNCOP_HISTORY-NZZGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNCOP_HISTORY 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_RNCOP_HISTORY 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_RNCOP_HISTORY INTO WA_RNCOP_HISTORY.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REPAYMENT_DOCTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNCOP_HISTORY-REPAYMENT_DOCTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNCOP_HISTORY-REPAYMENT_DOCTYPE.
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_RNCOP_HISTORY_STR, 
FALNR TYPE STRING,
PATNR TYPE STRING,
LFDBEW TYPE STRING,
BWART TYPE STRING,
BWATX TYPE STRING,
BWIDT TYPE STRING,
BWIZT TYPE STRING,
KV TYPE STRING,
AMBOP TYPE STRING,
VERWE TYPE STRING,
NZZGR TYPE STRING,
NZZGT_TXT TYPE STRING,
KOSTR TYPE STRING,
KNAME TYPE STRING,
DEBITOR TYPE STRING,
INVOICE_BELNR TYPE STRING,
INVOICE_AMOUNT TYPE STRING,
INVOICE_DATE TYPE STRING,
INVOICE_BLART TYPE STRING,
INVOICE_DUNNING_DATE TYPE STRING,
INVOICE_UNDELIVERABLE TYPE STRING,
INVOICE_NO_PAYMENT TYPE STRING,
PAYMENT_STORNO TYPE STRING,
PAYMENT_BELNR TYPE STRING,
PAYMENT_AMOUNT TYPE STRING,
PAYMENT_DATE TYPE STRING,
PAYMENT_ACCOUNT TYPE STRING,
PAYMENT_BLART TYPE STRING,
REPAYMENT_BELNR TYPE STRING,
REPAYMENT_DATE TYPE STRING,
REPAYMENT_DOCTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNCOP_HISTORY_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_RNCOP_HISTORY_STR-FALNR sy-vline 
WA_RNCOP_HISTORY_STR-PATNR sy-vline 
WA_RNCOP_HISTORY_STR-LFDBEW sy-vline 
WA_RNCOP_HISTORY_STR-BWART sy-vline 
WA_RNCOP_HISTORY_STR-BWATX sy-vline 
WA_RNCOP_HISTORY_STR-BWIDT sy-vline 
WA_RNCOP_HISTORY_STR-BWIZT sy-vline 
WA_RNCOP_HISTORY_STR-KV sy-vline 
WA_RNCOP_HISTORY_STR-AMBOP sy-vline 
WA_RNCOP_HISTORY_STR-VERWE sy-vline 
WA_RNCOP_HISTORY_STR-NZZGR sy-vline 
WA_RNCOP_HISTORY_STR-NZZGT_TXT sy-vline 
WA_RNCOP_HISTORY_STR-KOSTR sy-vline 
WA_RNCOP_HISTORY_STR-KNAME sy-vline 
WA_RNCOP_HISTORY_STR-DEBITOR sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_BELNR sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_AMOUNT sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_DATE sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_BLART sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_DUNNING_DATE sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_UNDELIVERABLE sy-vline 
WA_RNCOP_HISTORY_STR-INVOICE_NO_PAYMENT sy-vline 
WA_RNCOP_HISTORY_STR-PAYMENT_STORNO sy-vline 
WA_RNCOP_HISTORY_STR-PAYMENT_BELNR sy-vline 
WA_RNCOP_HISTORY_STR-PAYMENT_AMOUNT sy-vline 
WA_RNCOP_HISTORY_STR-PAYMENT_DATE sy-vline 
WA_RNCOP_HISTORY_STR-PAYMENT_ACCOUNT sy-vline 
WA_RNCOP_HISTORY_STR-PAYMENT_BLART sy-vline 
WA_RNCOP_HISTORY_STR-REPAYMENT_BELNR sy-vline 
WA_RNCOP_HISTORY_STR-REPAYMENT_DATE sy-vline 
WA_RNCOP_HISTORY_STR-REPAYMENT_DOCTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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