ABAP Select data from SAP table VTS_OPIT_LOAN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTS_OPIT_LOAN
*  INTO TABLE @DATA(IT_VTS_OPIT_LOAN2).
*--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_VTS_OPIT_LOAN INDEX 1 INTO DATA(WA_VTS_OPIT_LOAN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTS_OPIT_LOAN>-BUKRS = 1.
<VTS_OPIT_LOAN>-KUNNR = 1.
<VTS_OPIT_LOAN>-VBEWA = 1.
<VTS_OPIT_LOAN>-XBEWART = 1.
<VTS_OPIT_LOAN>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTS_OPIT_LOAN-GJAHR, sy-vline,
  WA_VTS_OPIT_LOAN-BUDAT, sy-vline,
  WA_VTS_OPIT_LOAN-WAERS, sy-vline,
  WA_VTS_OPIT_LOAN-RBELKPFD, sy-vline,
  WA_VTS_OPIT_LOAN-SHKZG, sy-vline,
  WA_VTS_OPIT_LOAN-BUZEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTS_OPIT_LOAN 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_VTS_OPIT_LOAN 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_VTS_OPIT_LOAN INTO WA_VTS_OPIT_LOAN.


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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VTS_OPIT_LOAN-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTS_OPIT_LOAN-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field VERTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTS_OPIT_LOAN-VERTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTS_OPIT_LOAN-VERTN.
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_VTS_OPIT_LOAN_STR, 
BUKRS TYPE STRING,
KUNNR TYPE STRING,
VBEWA TYPE STRING,
XBEWART TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUDAT TYPE STRING,
WAERS TYPE STRING,
RBELKPFD TYPE STRING,
SHKZG TYPE STRING,
BUZEI TYPE STRING,
UMSKZ TYPE STRING,
VALUT TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
ZLSPR TYPE STRING,
ZLSCH TYPE STRING,
MSCHL TYPE STRING,
SGTXT TYPE STRING,
VERTT TYPE STRING,
VERTN TYPE STRING,
RPOSNR TYPE STRING,
SBTRSUM TYPE STRING,
SBTRWHR TYPE STRING,
XCPDD TYPE STRING,
SHWHR TYPE STRING,
BVTYP TYPE STRING,
XMARK TYPE STRING,
UZAWE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTS_OPIT_LOAN_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_VTS_OPIT_LOAN_STR-BUKRS sy-vline 
WA_VTS_OPIT_LOAN_STR-KUNNR sy-vline 
WA_VTS_OPIT_LOAN_STR-VBEWA sy-vline 
WA_VTS_OPIT_LOAN_STR-XBEWART sy-vline 
WA_VTS_OPIT_LOAN_STR-BELNR sy-vline 
WA_VTS_OPIT_LOAN_STR-GJAHR sy-vline 
WA_VTS_OPIT_LOAN_STR-BUDAT sy-vline 
WA_VTS_OPIT_LOAN_STR-WAERS sy-vline 
WA_VTS_OPIT_LOAN_STR-RBELKPFD sy-vline 
WA_VTS_OPIT_LOAN_STR-SHKZG sy-vline 
WA_VTS_OPIT_LOAN_STR-BUZEI sy-vline 
WA_VTS_OPIT_LOAN_STR-UMSKZ sy-vline 
WA_VTS_OPIT_LOAN_STR-VALUT sy-vline 
WA_VTS_OPIT_LOAN_STR-DMBTR sy-vline 
WA_VTS_OPIT_LOAN_STR-WRBTR sy-vline 
WA_VTS_OPIT_LOAN_STR-ZLSPR sy-vline 
WA_VTS_OPIT_LOAN_STR-ZLSCH sy-vline 
WA_VTS_OPIT_LOAN_STR-MSCHL sy-vline 
WA_VTS_OPIT_LOAN_STR-SGTXT sy-vline 
WA_VTS_OPIT_LOAN_STR-VERTT sy-vline 
WA_VTS_OPIT_LOAN_STR-VERTN sy-vline 
WA_VTS_OPIT_LOAN_STR-RPOSNR sy-vline 
WA_VTS_OPIT_LOAN_STR-SBTRSUM sy-vline 
WA_VTS_OPIT_LOAN_STR-SBTRWHR sy-vline 
WA_VTS_OPIT_LOAN_STR-XCPDD sy-vline 
WA_VTS_OPIT_LOAN_STR-SHWHR sy-vline 
WA_VTS_OPIT_LOAN_STR-BVTYP sy-vline 
WA_VTS_OPIT_LOAN_STR-XMARK sy-vline 
WA_VTS_OPIT_LOAN_STR-UZAWE sy-vline      INTO ld_text SEPARATED BY SPACE.

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