ABAP Select data from SAP table V_TN22G into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TN22G 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_TN22G. 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_TN22G 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_TN22G TYPE STANDARD TABLE OF V_TN22G,
      WA_V_TN22G TYPE V_TN22G,
      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_TN22G> TYPE V_TN22G.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TN22G.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TN22G
  INTO TABLE IT_V_TN22G.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TN22G
*  INTO TABLE @DATA(IT_V_TN22G2).
*--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_TN22G INDEX 1 INTO DATA(WA_V_TN22G2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TN22G ASSIGNING <V_TN22G>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TN22G>-MANDT = 1.
<V_TN22G>-EINRI = 1.
<V_TN22G>-VERWE = 1.
<V_TN22G>-EINKB = 1.
<V_TN22G>-SHBKZ = 1.

ENDLOOP.

LOOP AT IT_V_TN22G INTO WA_V_TN22G.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TN22G-MANSP, sy-vline,
  WA_V_TN22G-BLART, sy-vline,
  WA_V_TN22G-TAXKZ, sy-vline,
  WA_V_TN22G-BSCHL, sy-vline,
  WA_V_TN22G-KONTO, sy-vline,
  WA_V_TN22G-FKDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TN22G 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_TN22G 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_TN22G INTO WA_V_TN22G.


*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_TN22G-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-VERWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-VERWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHBKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-SHBKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-SHBKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TAXKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-TAXKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-TAXKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-KONTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FKDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-FKDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-FKDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VADAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-VADAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-VADAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GBLAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-GBLAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-GBLAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNT_COPAYM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-ACCOUNT_COPAYM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-ACCOUNT_COPAYM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNT_POSTAGE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-ACCOUNT_POSTAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-ACCOUNT_POSTAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNT_GBLAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-ACCOUNT_GBLAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-ACCOUNT_GBLAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REPAY_DOCTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TN22G-REPAY_DOCTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TN22G-REPAY_DOCTYPE.
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_TN22G_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
VERWE TYPE STRING,
EINKB TYPE STRING,
SHBKZ TYPE STRING,
MANSP TYPE STRING,
BLART TYPE STRING,
TAXKZ TYPE STRING,
BSCHL TYPE STRING,
KONTO TYPE STRING,
FKDAT TYPE STRING,
VADAT TYPE STRING,
TXTZZ TYPE STRING,
TXTZP TYPE STRING,
BSLSO TYPE STRING,
BSLHA TYPE STRING,
GBLAR TYPE STRING,
TXTGK TYPE STRING,
TXTGP TYPE STRING,
BAFAL TYPE STRING,
BSHAU TYPE STRING,
STGRD_UM TYPE STRING,
ACCOUNT_COPAYM TYPE STRING,
ACCOUNT_POSTAGE TYPE STRING,
ACCOUNT_GBLAR TYPE STRING,
ACCOUNT_BSHAU TYPE STRING,
ACCOUNT_WITH_KST TYPE STRING,
ACCOUNT_TXTGK TYPE STRING,
ACCOUNT_TXTGP TYPE STRING,
ACCOUNT_STGRD_UM TYPE STRING,
REPAY_DOCTYPE TYPE STRING,
REPAY_PAT_BSHA TYPE STRING,
REPAY_INS_BSSO TYPE STRING,
REPAY_ACC_BSSO TYPE STRING,
REPAY_PAYM_METH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TN22G_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_TN22G_STR-MANDT sy-vline 
WA_V_TN22G_STR-EINRI sy-vline 
WA_V_TN22G_STR-VERWE sy-vline 
WA_V_TN22G_STR-EINKB sy-vline 
WA_V_TN22G_STR-SHBKZ sy-vline 
WA_V_TN22G_STR-MANSP sy-vline 
WA_V_TN22G_STR-BLART sy-vline 
WA_V_TN22G_STR-TAXKZ sy-vline 
WA_V_TN22G_STR-BSCHL sy-vline 
WA_V_TN22G_STR-KONTO sy-vline 
WA_V_TN22G_STR-FKDAT sy-vline 
WA_V_TN22G_STR-VADAT sy-vline 
WA_V_TN22G_STR-TXTZZ sy-vline 
WA_V_TN22G_STR-TXTZP sy-vline 
WA_V_TN22G_STR-BSLSO sy-vline 
WA_V_TN22G_STR-BSLHA sy-vline 
WA_V_TN22G_STR-GBLAR sy-vline 
WA_V_TN22G_STR-TXTGK sy-vline 
WA_V_TN22G_STR-TXTGP sy-vline 
WA_V_TN22G_STR-BAFAL sy-vline 
WA_V_TN22G_STR-BSHAU sy-vline 
WA_V_TN22G_STR-STGRD_UM sy-vline 
WA_V_TN22G_STR-ACCOUNT_COPAYM sy-vline 
WA_V_TN22G_STR-ACCOUNT_POSTAGE sy-vline 
WA_V_TN22G_STR-ACCOUNT_GBLAR sy-vline 
WA_V_TN22G_STR-ACCOUNT_BSHAU sy-vline 
WA_V_TN22G_STR-ACCOUNT_WITH_KST sy-vline 
WA_V_TN22G_STR-ACCOUNT_TXTGK sy-vline 
WA_V_TN22G_STR-ACCOUNT_TXTGP sy-vline 
WA_V_TN22G_STR-ACCOUNT_STGRD_UM sy-vline 
WA_V_TN22G_STR-REPAY_DOCTYPE sy-vline 
WA_V_TN22G_STR-REPAY_PAT_BSHA sy-vline 
WA_V_TN22G_STR-REPAY_INS_BSSO sy-vline 
WA_V_TN22G_STR-REPAY_ACC_BSSO sy-vline 
WA_V_TN22G_STR-REPAY_PAYM_METH sy-vline      INTO ld_text SEPARATED BY SPACE.

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