ABAP Select data from SAP table V_T858 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T858 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_T858. 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_T858 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_T858 TYPE STANDARD TABLE OF V_T858,
      WA_V_T858 TYPE V_T858,
      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_T858> TYPE V_T858.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T858.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T858
  INTO TABLE IT_V_T858.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T858
*  INTO TABLE @DATA(IT_V_T8582).
*--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_T858 INDEX 1 INTO DATA(WA_V_T8582).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T858 ASSIGNING <V_T858>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T858>-MANDT = 1.
<V_T858>-RVERS = 1.
<V_T858>-TXT = 1.
<V_T858>-CFIND = 1.
<V_T858>-RCOPY = 1.

ENDLOOP.

LOOP AT IT_V_T858 INTO WA_V_T858.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T858-TVUMR, sy-vline,
  WA_V_T858-TVCUR, sy-vline,
  WA_V_T858-TVKAP, sy-vline,
  WA_V_T858-TVBTG, sy-vline,
  WA_V_T858-TVKPP, sy-vline,
  WA_V_T858-TVRES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T858 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_T858 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_T858 INTO WA_V_T858.


*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 RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVUMR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVUMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVUMR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVCUR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVCUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVCUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVKAP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVKAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVKAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVBTG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVBTG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVBTG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVKPP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVKPP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVKPP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVRES
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVRES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVRES.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVERG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVERG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVERG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVSKO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVSKO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVSKO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVUMG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVUMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVUMG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVZGE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVZGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVZGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVABG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVABG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVABG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVFIX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T858-TVFIX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T858-TVFIX.
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_T858_STR, 
MANDT TYPE STRING,
RVERS TYPE STRING,
TXT TYPE STRING,
CFIND TYPE STRING,
RCOPY TYPE STRING,
TVUMR TYPE STRING,
TVCUR TYPE STRING,
TVKAP TYPE STRING,
TVBTG TYPE STRING,
TVKPP TYPE STRING,
TVRES TYPE STRING,
TVERG TYPE STRING,
TVSKO TYPE STRING,
TVUMG TYPE STRING,
TVZGE TYPE STRING,
TVABG TYPE STRING,
LOCAL TYPE STRING,
TVFIX TYPE STRING,
RCOPYEXT TYPE STRING,
GVWFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T858_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_T858_STR-MANDT sy-vline 
WA_V_T858_STR-RVERS sy-vline 
WA_V_T858_STR-TXT sy-vline 
WA_V_T858_STR-CFIND sy-vline 
WA_V_T858_STR-RCOPY sy-vline 
WA_V_T858_STR-TVUMR sy-vline 
WA_V_T858_STR-TVCUR sy-vline 
WA_V_T858_STR-TVKAP sy-vline 
WA_V_T858_STR-TVBTG sy-vline 
WA_V_T858_STR-TVKPP sy-vline 
WA_V_T858_STR-TVRES sy-vline 
WA_V_T858_STR-TVERG sy-vline 
WA_V_T858_STR-TVSKO sy-vline 
WA_V_T858_STR-TVUMG sy-vline 
WA_V_T858_STR-TVZGE sy-vline 
WA_V_T858_STR-TVABG sy-vline 
WA_V_T858_STR-LOCAL sy-vline 
WA_V_T858_STR-TVFIX sy-vline 
WA_V_T858_STR-RCOPYEXT sy-vline 
WA_V_T858_STR-GVWFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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