ABAP Select data from SAP table RPC_PAYCO_CERT_XML into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPC_PAYCO_CERT_XML
*  INTO TABLE @DATA(IT_RPC_PAYCO_CERT_XML2).
*--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_RPC_PAYCO_CERT_XML INDEX 1 INTO DATA(WA_RPC_PAYCO_CERT_XML2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPC_PAYCO_CERT_XML>-TDOCB = 1.
<RPC_PAYCO_CERT_XML>-NITB = 1.
<RPC_PAYCO_CERT_XML>-PAP = 1.
<RPC_PAYCO_CERT_XML>-SAP = 1.
<RPC_PAYCO_CERT_XML>-PNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPC_PAYCO_CERT_XML-ONO, sy-vline,
  WA_RPC_PAYCO_CERT_XML-DIR, sy-vline,
  WA_RPC_PAYCO_CERT_XML-DPTO, sy-vline,
  WA_RPC_PAYCO_CERT_XML-MUN, sy-vline,
  WA_RPC_PAYCO_CERT_XML-PAIS, sy-vline,
  WA_RPC_PAYCO_CERT_XML-PASA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPC_PAYCO_CERT_XML 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_RPC_PAYCO_CERT_XML 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_RPC_PAYCO_CERT_XML INTO WA_RPC_PAYCO_CERT_XML.


*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_RPC_PAYCO_CERT_XML_STR, 
TDOCB TYPE STRING,
NITB TYPE STRING,
PAP TYPE STRING,
SAP TYPE STRING,
PNO TYPE STRING,
ONO TYPE STRING,
DIR TYPE STRING,
DPTO TYPE STRING,
MUN TYPE STRING,
PAIS TYPE STRING,
PASA TYPE STRING,
PAEC TYPE STRING,
PAHO TYPE STRING,
PASE TYPE STRING,
PACO TYPE STRING,
PAPRE TYPE STRING,
PAVIA TYPE STRING,
PAGA TYPE STRING,
PATRA TYPE STRING,
POTRO TYPE STRING,
PABO TYPE STRING,
CEIN TYPE STRING,
PEJU TYPE STRING,
APOS TYPE STRING,
APOF TYPE STRING,
APOV TYPE STRING,
APAFC TYPE STRING,
VARE TYPE STRING,
ENTINFO TYPE STRING,
TINGBTP TYPE STRING,
APAVC TYPE STRING,
APECOFPE TYPE STRING,
PAGAMUVT TYPE STRING,
PAGAHUVT TYPE STRING,
IDENTFC TYPE STRING,
TDOCPCC TYPE STRING,
NITPCC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPC_PAYCO_CERT_XML_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_RPC_PAYCO_CERT_XML_STR-TDOCB sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-NITB sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAP sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-SAP sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PNO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-ONO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-DIR sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-DPTO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-MUN sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAIS sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PASA sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAEC sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAHO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PASE sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PACO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAPRE sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAVIA sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAGA sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PATRA sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-POTRO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PABO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-CEIN sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PEJU sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-APOS sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-APOF sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-APOV sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-APAFC sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-VARE sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-ENTINFO sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-TINGBTP sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-APAVC sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-APECOFPE sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAGAMUVT sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-PAGAHUVT sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-IDENTFC sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-TDOCPCC sy-vline 
WA_RPC_PAYCO_CERT_XML_STR-NITPCC sy-vline      INTO ld_text SEPARATED BY SPACE.

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