ABAP Select data from SAP table PCADOCCTNDOCBPS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCADOCCTNDOCBPS
*  INTO TABLE @DATA(IT_PCADOCCTNDOCBPS2).
*--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_PCADOCCTNDOCBPS INDEX 1 INTO DATA(WA_PCADOCCTNDOCBPS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCADOCCTNDOCBPS>-MANDT = 1.
<PCADOCCTNDOCBPS>-CADOCUMENT = 1.
<PCADOCCTNDOCBPS>-CAREPETITIONITEMNUMBER = 1.
<PCADOCCTNDOCBPS>-CABPITEMNUMBER = 1.
<PCADOCCTNDOCBPS>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCADOCCTNDOCBPS-BUSINESSAREA, sy-vline,
  WA_PCADOCCTNDOCBPS-SEGMENT, sy-vline,
  WA_PCADOCCTNDOCBPS-CABPITEMTEXT, sy-vline,
  WA_PCADOCCTNDOCBPS-CACASHDISCOUNTRATE, sy-vline,
  WA_PCADOCCTNDOCBPS-CAGROUPINGFORPAYMENT, sy-vline,
  WA_PCADOCCTNDOCBPS-CAMAINTRANSACTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCADOCCTNDOCBPS 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_PCADOCCTNDOCBPS 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_PCADOCCTNDOCBPS INTO WA_PCADOCCTNDOCBPS.


*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 CADOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCADOCCTNDOCBPS-CADOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCADOCCTNDOCBPS-CADOCUMENT.
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_PCADOCCTNDOCBPS_STR, 
MANDT TYPE STRING,
CADOCUMENT TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSAREA TYPE STRING,
SEGMENT TYPE STRING,
CABPITEMTEXT TYPE STRING,
CACASHDISCOUNTRATE TYPE STRING,
CAGROUPINGFORPAYMENT TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CASUBTRANSACTION TYPE STRING,
CACLEARINGREASON TYPE STRING,
DOCUMENTDATE TYPE STRING,
CAPOSTINGDATE TYPE STRING,
CANETDUEDATE TYPE STRING,
CADEFERRALDATE TYPE STRING,
CACASHDISCOUNTDUEDATE TYPE STRING,
CAVALUEDATEFORCLEARING TYPE STRING,
CACLEARINGDATE TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAAMOUNTINTRANSACTIONCURRENCY TYPE STRING,
CAOPENAMOUNTINTRANSACTIONCRCY TYPE STRING,
CACASHDISCOUNTAMTINTRANSCRCY TYPE STRING,
CAELIGIBLEAMOUNTFORCSHDISCINTC TYPE STRING,
CARELEASEDAMTINTRANSCURRENCY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
AMOUNTINDISPLAYCURRENCY TYPE STRING,
OPENAMOUNTINDISPLAYCRCY TYPE STRING,
CASHDISCOUNTAMOUNTINDSPCRCY TYPE STRING,
CAELIGIBLEAMOUNTFORCSHDISCINDC TYPE STRING,
CARELEASEDAMTINDISPLAYCURRENCY TYPE STRING,
CACLEARINGAMOUNTINDISPLAYCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCADOCCTNDOCBPS_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_PCADOCCTNDOCBPS_STR-MANDT sy-vline 
WA_PCADOCCTNDOCBPS_STR-CADOCUMENT sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_PCADOCCTNDOCBPS_STR-CABPITEMNUMBER sy-vline 
WA_PCADOCCTNDOCBPS_STR-COMPANYCODE sy-vline 
WA_PCADOCCTNDOCBPS_STR-BUSINESSAREA sy-vline 
WA_PCADOCCTNDOCBPS_STR-SEGMENT sy-vline 
WA_PCADOCCTNDOCBPS_STR-CABPITEMTEXT sy-vline 
WA_PCADOCCTNDOCBPS_STR-CACASHDISCOUNTRATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAGROUPINGFORPAYMENT sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAMAINTRANSACTION sy-vline 
WA_PCADOCCTNDOCBPS_STR-CASUBTRANSACTION sy-vline 
WA_PCADOCCTNDOCBPS_STR-CACLEARINGREASON sy-vline 
WA_PCADOCCTNDOCBPS_STR-DOCUMENTDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAPOSTINGDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-CANETDUEDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-CADEFERRALDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-CACASHDISCOUNTDUEDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAVALUEDATEFORCLEARING sy-vline 
WA_PCADOCCTNDOCBPS_STR-CACLEARINGDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-EXCHANGERATEDATE sy-vline 
WA_PCADOCCTNDOCBPS_STR-TRANSACTIONCURRENCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAAMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAOPENAMOUNTINTRANSACTIONCRCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CACASHDISCOUNTAMTINTRANSCRCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAELIGIBLEAMOUNTFORCSHDISCINTC sy-vline 
WA_PCADOCCTNDOCBPS_STR-CARELEASEDAMTINTRANSCURRENCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-DISPLAYCURRENCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-AMOUNTINDISPLAYCURRENCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-OPENAMOUNTINDISPLAYCRCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CASHDISCOUNTAMOUNTINDSPCRCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CAELIGIBLEAMOUNTFORCSHDISCINDC sy-vline 
WA_PCADOCCTNDOCBPS_STR-CARELEASEDAMTINDISPLAYCURRENCY sy-vline 
WA_PCADOCCTNDOCBPS_STR-CACLEARINGAMOUNTINDISPLAYCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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