ABAP Select data from SAP table V_TN22P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TN22P 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 V_TN22P. 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 V_TN22P 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_V_TN22P TYPE STANDARD TABLE OF V_TN22P,
      WA_V_TN22P TYPE V_TN22P,
      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: <V_TN22P> TYPE V_TN22P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TN22P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TN22P
  INTO TABLE IT_V_TN22P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TN22P
*  INTO TABLE @DATA(IT_V_TN22P2).
*--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_V_TN22P INDEX 1 INTO DATA(WA_V_TN22P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TN22P ASSIGNING <V_TN22P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TN22P>-MANDT = 1.
<V_TN22P>-EINRI = 1.
<V_TN22P>-SHBKZ = 1.
<V_TN22P>-SHBKL = 1.
<V_TN22P>-BLART = 1.

ENDLOOP.

LOOP AT IT_V_TN22P INTO WA_V_TN22P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TN22P-WAERS, sy-vline,
  WA_V_TN22P-TAXKZ, sy-vline,
  WA_V_TN22P-MABER, sy-vline,
  WA_V_TN22P-BSLSO, sy-vline,
  WA_V_TN22P-BSLHA, sy-vline,
  WA_V_TN22P-BSCHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TN22P 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_V_TN22P 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_V_TN22P INTO WA_V_TN22P.


*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 EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHBKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-SHBKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-SHBKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHBKL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-SHBKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-SHBKL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TAXKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-TAXKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-TAXKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MABER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-MABER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-MABER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-KONTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FKDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-FKDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-FKDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BLDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-BLDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-BLDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-BUDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-BUDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VADAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22P-VADAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22P-VADAT.
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_V_TN22P_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
SHBKZ TYPE STRING,
SHBKL TYPE STRING,
BLART TYPE STRING,
WAERS TYPE STRING,
TAXKZ TYPE STRING,
MABER TYPE STRING,
BSLSO TYPE STRING,
BSLHA TYPE STRING,
BSCHL TYPE STRING,
KONTO TYPE STRING,
FKDAT TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
VADAT TYPE STRING,
TXTAA TYPE STRING,
TXTAP TYPE STRING,
MXDIF TYPE STRING,
EINKB TYPE STRING,
ABSKZ TYPE STRING,
TXTBP TYPE STRING,
BEZUG TYPE STRING,
VRBSL TYPE STRING,
TXTVR TYPE STRING,
VRBAR TYPE STRING,
STGRD_VER TYPE STRING,
STGRD_AB_VER TYPE STRING,
STDAT TYPE STRING,
FALNR_BNK TYPE STRING,
CASH_DESK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TN22P_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_V_TN22P_STR-MANDT sy-vline 
WA_V_TN22P_STR-EINRI sy-vline 
WA_V_TN22P_STR-SHBKZ sy-vline 
WA_V_TN22P_STR-SHBKL sy-vline 
WA_V_TN22P_STR-BLART sy-vline 
WA_V_TN22P_STR-WAERS sy-vline 
WA_V_TN22P_STR-TAXKZ sy-vline 
WA_V_TN22P_STR-MABER sy-vline 
WA_V_TN22P_STR-BSLSO sy-vline 
WA_V_TN22P_STR-BSLHA sy-vline 
WA_V_TN22P_STR-BSCHL sy-vline 
WA_V_TN22P_STR-KONTO sy-vline 
WA_V_TN22P_STR-FKDAT sy-vline 
WA_V_TN22P_STR-BLDAT sy-vline 
WA_V_TN22P_STR-BUDAT sy-vline 
WA_V_TN22P_STR-VADAT sy-vline 
WA_V_TN22P_STR-TXTAA sy-vline 
WA_V_TN22P_STR-TXTAP sy-vline 
WA_V_TN22P_STR-MXDIF sy-vline 
WA_V_TN22P_STR-EINKB sy-vline 
WA_V_TN22P_STR-ABSKZ sy-vline 
WA_V_TN22P_STR-TXTBP sy-vline 
WA_V_TN22P_STR-BEZUG sy-vline 
WA_V_TN22P_STR-VRBSL sy-vline 
WA_V_TN22P_STR-TXTVR sy-vline 
WA_V_TN22P_STR-VRBAR sy-vline 
WA_V_TN22P_STR-STGRD_VER sy-vline 
WA_V_TN22P_STR-STGRD_AB_VER sy-vline 
WA_V_TN22P_STR-STDAT sy-vline 
WA_V_TN22P_STR-FALNR_BNK sy-vline 
WA_V_TN22P_STR-CASH_DESK sy-vline      INTO ld_text SEPARATED BY SPACE.

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