ABAP Select data from SAP table REXC_IT_ICI_PDF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXC_IT_ICI_PDF
*  INTO TABLE @DATA(IT_REXC_IT_ICI_PDF2).
*--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_REXC_IT_ICI_PDF INDEX 1 INTO DATA(WA_REXC_IT_ICI_PDF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXC_IT_ICI_PDF>-FORMNUMBER = 1.
<REXC_IT_ICI_PDF>-REPORTYEAR = 1.
<REXC_IT_ICI_PDF>-REPORTYEAR2 = 1.
<REXC_IT_ICI_PDF>-CITYNAME = 1.
<REXC_IT_ICI_PDF>-CITYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXC_IT_ICI_PDF-TFISCALCODE, sy-vline,
  WA_REXC_IT_ICI_PDF-TTELPREFIX, sy-vline,
  WA_REXC_IT_ICI_PDF-TTELNO, sy-vline,
  WA_REXC_IT_ICI_PDF-TEMAIL, sy-vline,
  WA_REXC_IT_ICI_PDF-TLASTNAME, sy-vline,
  WA_REXC_IT_ICI_PDF-TNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXC_IT_ICI_PDF 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_REXC_IT_ICI_PDF 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_REXC_IT_ICI_PDF INTO WA_REXC_IT_ICI_PDF.


*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 GJAHR, internal->external for field REPORTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_REXC_IT_ICI_PDF-REPORTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXC_IT_ICI_PDF-REPORTYEAR.
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_REXC_IT_ICI_PDF_STR, 
FORMNUMBER TYPE STRING,
REPORTYEAR TYPE STRING,
REPORTYEAR2 TYPE STRING,
CITYNAME TYPE STRING,
CITYCODE TYPE STRING,
TFISCALCODE TYPE STRING,
TTELPREFIX TYPE STRING,
TTELNO TYPE STRING,
TEMAIL TYPE STRING,
TLASTNAME TYPE STRING,
TNAME TYPE STRING,
TFISCALADDR TYPE STRING,
TPOSTALCODE TYPE STRING,
TCITY TYPE STRING,
TREGION TYPE STRING,
RFISCALCODE TYPE STRING,
RPOSITION TYPE STRING,
RTELPREFIX TYPE STRING,
RTELNO TYPE STRING,
REMAIL TYPE STRING,
RLASTNAME TYPE STRING,
RNAME TYPE STRING,
RFISCALADDR TYPE STRING,
RPOSTALCODE TYPE STRING,
RCITY TYPE STRING,
RREGION TYPE STRING,
NOTE1 TYPE STRING,
NOTE2 TYPE STRING,
NOTE3 TYPE STRING,
NOTE4 TYPE STRING,
TOTALFORMNUMBER TYPE STRING,
FORMDATE TYPE STRING,
SIGNATURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXC_IT_ICI_PDF_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_REXC_IT_ICI_PDF_STR-FORMNUMBER sy-vline 
WA_REXC_IT_ICI_PDF_STR-REPORTYEAR sy-vline 
WA_REXC_IT_ICI_PDF_STR-REPORTYEAR2 sy-vline 
WA_REXC_IT_ICI_PDF_STR-CITYNAME sy-vline 
WA_REXC_IT_ICI_PDF_STR-CITYCODE sy-vline 
WA_REXC_IT_ICI_PDF_STR-TFISCALCODE sy-vline 
WA_REXC_IT_ICI_PDF_STR-TTELPREFIX sy-vline 
WA_REXC_IT_ICI_PDF_STR-TTELNO sy-vline 
WA_REXC_IT_ICI_PDF_STR-TEMAIL sy-vline 
WA_REXC_IT_ICI_PDF_STR-TLASTNAME sy-vline 
WA_REXC_IT_ICI_PDF_STR-TNAME sy-vline 
WA_REXC_IT_ICI_PDF_STR-TFISCALADDR sy-vline 
WA_REXC_IT_ICI_PDF_STR-TPOSTALCODE sy-vline 
WA_REXC_IT_ICI_PDF_STR-TCITY sy-vline 
WA_REXC_IT_ICI_PDF_STR-TREGION sy-vline 
WA_REXC_IT_ICI_PDF_STR-RFISCALCODE sy-vline 
WA_REXC_IT_ICI_PDF_STR-RPOSITION sy-vline 
WA_REXC_IT_ICI_PDF_STR-RTELPREFIX sy-vline 
WA_REXC_IT_ICI_PDF_STR-RTELNO sy-vline 
WA_REXC_IT_ICI_PDF_STR-REMAIL sy-vline 
WA_REXC_IT_ICI_PDF_STR-RLASTNAME sy-vline 
WA_REXC_IT_ICI_PDF_STR-RNAME sy-vline 
WA_REXC_IT_ICI_PDF_STR-RFISCALADDR sy-vline 
WA_REXC_IT_ICI_PDF_STR-RPOSTALCODE sy-vline 
WA_REXC_IT_ICI_PDF_STR-RCITY sy-vline 
WA_REXC_IT_ICI_PDF_STR-RREGION sy-vline 
WA_REXC_IT_ICI_PDF_STR-NOTE1 sy-vline 
WA_REXC_IT_ICI_PDF_STR-NOTE2 sy-vline 
WA_REXC_IT_ICI_PDF_STR-NOTE3 sy-vline 
WA_REXC_IT_ICI_PDF_STR-NOTE4 sy-vline 
WA_REXC_IT_ICI_PDF_STR-TOTALFORMNUMBER sy-vline 
WA_REXC_IT_ICI_PDF_STR-FORMDATE sy-vline 
WA_REXC_IT_ICI_PDF_STR-SIGNATURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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