ABAP Select data from SAP table VTVSS_LI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVSS_LI
*  INTO TABLE @DATA(IT_VTVSS_LI2).
*--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_VTVSS_LI INDEX 1 INTO DATA(WA_VTVSS_LI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVSS_LI>-MANDT = 1.
<VTVSS_LI>-SLA = 1.
<VTVSS_LI>-RLV = 1.
<VTVSS_LI>-SLH = 1.
<VTVSS_LI>-DLVB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVSS_LI-DLVE, sy-vline,
  WA_VTVSS_LI-BLIMIT, sy-vline,
  WA_VTVSS_LI-ELIMIT, sy-vline,
  WA_VTVSS_LI-WLIMIT, sy-vline,
  WA_VTVSS_LI-PROZLIMIT, sy-vline,
  WA_VTVSS_LI-COMPERD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVSS_LI 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_VTVSS_LI 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_VTVSS_LI INTO WA_VTVSS_LI.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTVSS_LI-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVSS_LI-PARTNR.
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_VTVSS_LI_STR, 
MANDT TYPE STRING,
SLA TYPE STRING,
RLV TYPE STRING,
SLH TYPE STRING,
DLVB TYPE STRING,
DLVE TYPE STRING,
BLIMIT TYPE STRING,
ELIMIT TYPE STRING,
WLIMIT TYPE STRING,
PROZLIMIT TYPE STRING,
COMPERD TYPE STRING,
VLO TYPE STRING,
RELSTATE TYPE STRING,
RELUSER TYPE STRING,
RESUBDATE TYPE STRING,
RESUBUSER TYPE STRING,
ARSMD TYPE STRING,
NOTES_EXIST TYPE STRING,
INFINITE TYPE STRING,
EDLVE TYPE STRING,
BUKRS TYPE STRING,
PARTNR TYPE STRING,
SLPG TYPE STRING,
RPORTB TYPE STRING,
RDEALER TYPE STRING,
WAERS TYPE STRING,
CONTROL01 TYPE STRING,
INTORG TYPE STRING,
RCOUNTRY TYPE STRING,
COUNTRY TYPE STRING,
SECTOR TYPE STRING,
RATING TYPE STRING,
CRATING TYPE STRING,
LLOCK TYPE STRING,
LLUSER TYPE STRING,
SLI TYPE STRING,
VLI TYPE STRING,
BLI TYPE STRING,
CLI TYPE STRING,
BLS TYPE STRING,
WLI TYPE STRING,
COMPERD_DEC TYPE STRING,
RCID01 TYPE STRING,
RCID02 TYPE STRING,
RCID03 TYPE STRING,
RCID04 TYPE STRING,
RCID05 TYPE STRING,
RCID06 TYPE STRING,
RCID07 TYPE STRING,
RCID08 TYPE STRING,
RCID09 TYPE STRING,
RCID10 TYPE STRING,
RCID11 TYPE STRING,
RCID12 TYPE STRING,
RCID13 TYPE STRING,
RCID14 TYPE STRING,
RCID15 TYPE STRING,
ACID01 TYPE STRING,
ACID02 TYPE STRING,
ACID03 TYPE STRING,
ACID04 TYPE STRING,
ACID05 TYPE STRING,
ACID06 TYPE STRING,
ACID07 TYPE STRING,
ACID08 TYPE STRING,
ACID09 TYPE STRING,
ACID10 TYPE STRING,
ACID11 TYPE STRING,
ACID12 TYPE STRING,
ACID13 TYPE STRING,
ACID14 TYPE STRING,
ACID15 TYPE STRING,
DLI TYPE STRING,
ANZGW TYPE STRING,
BLI_AW TYPE STRING,
BLIMIT_AW TYPE STRING,
ELIMIT_AW TYPE STRING,
CLI_AW TYPE STRING,
BLS_AW TYPE STRING,
NUMBR TYPE STRING,
SLDFIL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVSS_LI_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_VTVSS_LI_STR-MANDT sy-vline 
WA_VTVSS_LI_STR-SLA sy-vline 
WA_VTVSS_LI_STR-RLV sy-vline 
WA_VTVSS_LI_STR-SLH sy-vline 
WA_VTVSS_LI_STR-DLVB sy-vline 
WA_VTVSS_LI_STR-DLVE sy-vline 
WA_VTVSS_LI_STR-BLIMIT sy-vline 
WA_VTVSS_LI_STR-ELIMIT sy-vline 
WA_VTVSS_LI_STR-WLIMIT sy-vline 
WA_VTVSS_LI_STR-PROZLIMIT sy-vline 
WA_VTVSS_LI_STR-COMPERD sy-vline 
WA_VTVSS_LI_STR-VLO sy-vline 
WA_VTVSS_LI_STR-RELSTATE sy-vline 
WA_VTVSS_LI_STR-RELUSER sy-vline 
WA_VTVSS_LI_STR-RESUBDATE sy-vline 
WA_VTVSS_LI_STR-RESUBUSER sy-vline 
WA_VTVSS_LI_STR-ARSMD sy-vline 
WA_VTVSS_LI_STR-NOTES_EXIST sy-vline 
WA_VTVSS_LI_STR-INFINITE sy-vline 
WA_VTVSS_LI_STR-EDLVE sy-vline 
WA_VTVSS_LI_STR-BUKRS sy-vline 
WA_VTVSS_LI_STR-PARTNR sy-vline 
WA_VTVSS_LI_STR-SLPG sy-vline 
WA_VTVSS_LI_STR-RPORTB sy-vline 
WA_VTVSS_LI_STR-RDEALER sy-vline 
WA_VTVSS_LI_STR-WAERS sy-vline 
WA_VTVSS_LI_STR-CONTROL01 sy-vline 
WA_VTVSS_LI_STR-INTORG sy-vline 
WA_VTVSS_LI_STR-RCOUNTRY sy-vline 
WA_VTVSS_LI_STR-COUNTRY sy-vline 
WA_VTVSS_LI_STR-SECTOR sy-vline 
WA_VTVSS_LI_STR-RATING sy-vline 
WA_VTVSS_LI_STR-CRATING sy-vline 
WA_VTVSS_LI_STR-LLOCK sy-vline 
WA_VTVSS_LI_STR-LLUSER sy-vline 
WA_VTVSS_LI_STR-SLI sy-vline 
WA_VTVSS_LI_STR-VLI sy-vline 
WA_VTVSS_LI_STR-BLI sy-vline 
WA_VTVSS_LI_STR-CLI sy-vline 
WA_VTVSS_LI_STR-BLS sy-vline 
WA_VTVSS_LI_STR-WLI sy-vline 
WA_VTVSS_LI_STR-COMPERD_DEC sy-vline 
WA_VTVSS_LI_STR-RCID01 sy-vline 
WA_VTVSS_LI_STR-RCID02 sy-vline 
WA_VTVSS_LI_STR-RCID03 sy-vline 
WA_VTVSS_LI_STR-RCID04 sy-vline 
WA_VTVSS_LI_STR-RCID05 sy-vline 
WA_VTVSS_LI_STR-RCID06 sy-vline 
WA_VTVSS_LI_STR-RCID07 sy-vline 
WA_VTVSS_LI_STR-RCID08 sy-vline 
WA_VTVSS_LI_STR-RCID09 sy-vline 
WA_VTVSS_LI_STR-RCID10 sy-vline 
WA_VTVSS_LI_STR-RCID11 sy-vline 
WA_VTVSS_LI_STR-RCID12 sy-vline 
WA_VTVSS_LI_STR-RCID13 sy-vline 
WA_VTVSS_LI_STR-RCID14 sy-vline 
WA_VTVSS_LI_STR-RCID15 sy-vline 
WA_VTVSS_LI_STR-ACID01 sy-vline 
WA_VTVSS_LI_STR-ACID02 sy-vline 
WA_VTVSS_LI_STR-ACID03 sy-vline 
WA_VTVSS_LI_STR-ACID04 sy-vline 
WA_VTVSS_LI_STR-ACID05 sy-vline 
WA_VTVSS_LI_STR-ACID06 sy-vline 
WA_VTVSS_LI_STR-ACID07 sy-vline 
WA_VTVSS_LI_STR-ACID08 sy-vline 
WA_VTVSS_LI_STR-ACID09 sy-vline 
WA_VTVSS_LI_STR-ACID10 sy-vline 
WA_VTVSS_LI_STR-ACID11 sy-vline 
WA_VTVSS_LI_STR-ACID12 sy-vline 
WA_VTVSS_LI_STR-ACID13 sy-vline 
WA_VTVSS_LI_STR-ACID14 sy-vline 
WA_VTVSS_LI_STR-ACID15 sy-vline 
WA_VTVSS_LI_STR-DLI sy-vline 
WA_VTVSS_LI_STR-ANZGW sy-vline 
WA_VTVSS_LI_STR-BLI_AW sy-vline 
WA_VTVSS_LI_STR-BLIMIT_AW sy-vline 
WA_VTVSS_LI_STR-ELIMIT_AW sy-vline 
WA_VTVSS_LI_STR-CLI_AW sy-vline 
WA_VTVSS_LI_STR-BLS_AW sy-vline 
WA_VTVSS_LI_STR-NUMBR sy-vline 
WA_VTVSS_LI_STR-SLDFIL sy-vline      INTO ld_text SEPARATED BY SPACE.

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