ABAP Select data from SAP table REXCC_IT_ICI_FORM_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCC_IT_ICI_FORM_X
*  INTO TABLE @DATA(IT_REXCC_IT_ICI_FORM_X2).
*--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_REXCC_IT_ICI_FORM_X INDEX 1 INTO DATA(WA_REXCC_IT_ICI_FORM_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCC_IT_ICI_FORM_X>-MANDT = 1.
<REXCC_IT_ICI_FORM_X>-BUKRS = 1.
<REXCC_IT_ICI_FORM_X>-REPORTYEAR = 1.
<REXCC_IT_ICI_FORM_X>-TFISCALCODE = 1.
<REXCC_IT_ICI_FORM_X>-TTELPREFIX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCC_IT_ICI_FORM_X-TTELNO, sy-vline,
  WA_REXCC_IT_ICI_FORM_X-TEMAIL, sy-vline,
  WA_REXCC_IT_ICI_FORM_X-TLASTNAME, sy-vline,
  WA_REXCC_IT_ICI_FORM_X-TNAME, sy-vline,
  WA_REXCC_IT_ICI_FORM_X-TFISCALADDR, sy-vline,
  WA_REXCC_IT_ICI_FORM_X-TPOSTALCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCC_IT_ICI_FORM_X 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_REXCC_IT_ICI_FORM_X 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_REXCC_IT_ICI_FORM_X INTO WA_REXCC_IT_ICI_FORM_X.


*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_REXCC_IT_ICI_FORM_X-REPORTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCC_IT_ICI_FORM_X-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_REXCC_IT_ICI_FORM_X_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
REPORTYEAR 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,
SIGNATURE TYPE STRING,
ICIFORMNAME TYPE STRING,
IMUFORMNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCC_IT_ICI_FORM_X_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_REXCC_IT_ICI_FORM_X_STR-MANDT sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-BUKRS sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-REPORTYEAR sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TFISCALCODE sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TTELPREFIX sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TTELNO sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TEMAIL sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TLASTNAME sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TNAME sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TFISCALADDR sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TPOSTALCODE sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TCITY sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-TREGION sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RFISCALCODE sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RPOSITION sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RTELPREFIX sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RTELNO sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-REMAIL sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RLASTNAME sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RNAME sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RFISCALADDR sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RPOSTALCODE sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RCITY sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-RREGION sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-NOTE1 sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-NOTE2 sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-NOTE3 sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-NOTE4 sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-SIGNATURE sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-ICIFORMNAME sy-vline 
WA_REXCC_IT_ICI_FORM_X_STR-IMUFORMNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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