ABAP Select data from SAP table VTVDETM_TR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVDETM_TR
*  INTO TABLE @DATA(IT_VTVDETM_TR2).
*--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_VTVDETM_TR INDEX 1 INTO DATA(WA_VTVDETM_TR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVDETM_TR>-VONDAT = 1.
<VTVDETM_TR>-BISDAT = 1.
<VTVDETM_TR>-RSTICH = 1.
<VTVDETM_TR>-DBUDAT = 1.
<VTVDETM_TR>-DGJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVDETM_TR-DMONAT, sy-vline,
  WA_VTVDETM_TR-PERIO, sy-vline,
  WA_VTVDETM_TR-DFAELL, sy-vline,
  WA_VTVDETM_TR-RPBANK, sy-vline,
  WA_VTVDETM_TR-RPZAHL, sy-vline,
  WA_VTVDETM_TR-JFDBUC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVDETM_TR 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_VTVDETM_TR 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_VTVDETM_TR INTO WA_VTVDETM_TR.


*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 DGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VTVDETM_TR-DGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVDETM_TR-DGJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_VTVDETM_TR-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVDETM_TR-PERIO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit PERI, internal->external for field MONAT_JAHR
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_VTVDETM_TR-MONAT_JAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVDETM_TR-MONAT_JAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field WOCHE_JAHR
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_VTVDETM_TR-WOCHE_JAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVDETM_TR-WOCHE_JAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field GL_ACCOUNT_C
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTVDETM_TR-GL_ACCOUNT_C
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVDETM_TR-GL_ACCOUNT_C.
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_VTVDETM_TR_STR, 
VONDAT TYPE STRING,
BISDAT TYPE STRING,
RSTICH TYPE STRING,
DBUDAT TYPE STRING,
DGJAHR TYPE STRING,
DMONAT TYPE STRING,
PERIO TYPE STRING,
DFAELL TYPE STRING,
RPBANK TYPE STRING,
RPZAHL TYPE STRING,
JFDBUC TYPE STRING,
LAND1 TYPE STRING,
ZLSCH TYPE STRING,
BANKK_HB TYPE STRING,
BANKN_HB TYPE STRING,
BANKK_BP TYPE STRING,
BANKN_BP TYPE STRING,
SSIGN TYPE STRING,
JAHR TYPE STRING,
MONAT TYPE STRING,
WOCHE TYPE STRING,
MONAT_JAHR TYPE STRING,
WOCHE_JAHR TYPE STRING,
SZART TYPE STRING,
SPAYRQ TYPE STRING,
PRKEY TYPE STRING,
BELNR TYPE STRING,
AWKEY TYPE STRING,
GL_ACCOUNT_D TYPE STRING,
GL_ACCOUNT_C TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVDETM_TR_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_VTVDETM_TR_STR-VONDAT sy-vline 
WA_VTVDETM_TR_STR-BISDAT sy-vline 
WA_VTVDETM_TR_STR-RSTICH sy-vline 
WA_VTVDETM_TR_STR-DBUDAT sy-vline 
WA_VTVDETM_TR_STR-DGJAHR sy-vline 
WA_VTVDETM_TR_STR-DMONAT sy-vline 
WA_VTVDETM_TR_STR-PERIO sy-vline 
WA_VTVDETM_TR_STR-DFAELL sy-vline 
WA_VTVDETM_TR_STR-RPBANK sy-vline 
WA_VTVDETM_TR_STR-RPZAHL sy-vline 
WA_VTVDETM_TR_STR-JFDBUC sy-vline 
WA_VTVDETM_TR_STR-LAND1 sy-vline 
WA_VTVDETM_TR_STR-ZLSCH sy-vline 
WA_VTVDETM_TR_STR-BANKK_HB sy-vline 
WA_VTVDETM_TR_STR-BANKN_HB sy-vline 
WA_VTVDETM_TR_STR-BANKK_BP sy-vline 
WA_VTVDETM_TR_STR-BANKN_BP sy-vline 
WA_VTVDETM_TR_STR-SSIGN sy-vline 
WA_VTVDETM_TR_STR-JAHR sy-vline 
WA_VTVDETM_TR_STR-MONAT sy-vline 
WA_VTVDETM_TR_STR-WOCHE sy-vline 
WA_VTVDETM_TR_STR-MONAT_JAHR sy-vline 
WA_VTVDETM_TR_STR-WOCHE_JAHR sy-vline 
WA_VTVDETM_TR_STR-SZART sy-vline 
WA_VTVDETM_TR_STR-SPAYRQ sy-vline 
WA_VTVDETM_TR_STR-PRKEY sy-vline 
WA_VTVDETM_TR_STR-BELNR sy-vline 
WA_VTVDETM_TR_STR-AWKEY sy-vline 
WA_VTVDETM_TR_STR-GL_ACCOUNT_D sy-vline 
WA_VTVDETM_TR_STR-GL_ACCOUNT_C sy-vline      INTO ld_text SEPARATED BY SPACE.

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