ABAP Select data from SAP table LV70T into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LV70T 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 LV70T. 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 LV70T 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_LV70T TYPE STANDARD TABLE OF LV70T,
      WA_LV70T TYPE LV70T,
      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: <LV70T> TYPE LV70T.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LV70T.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LV70T
  INTO TABLE IT_LV70T.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LV70T
*  INTO TABLE @DATA(IT_LV70T2).
*--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_LV70T INDEX 1 INTO DATA(WA_LV70T2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LV70T ASSIGNING <LV70T>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LV70T>-SPRVO = 1.
<LV70T>-SPTXT = 1.
<LV70T>-TDID = 1.
<LV70T>-TITLE = 1.
<LV70T>-SELKZ = 1.

ENDLOOP.

LOOP AT IT_LV70T INTO WA_LV70T.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LV70T-SPRAS, sy-vline,
  WA_LV70T-TTEXT, sy-vline,
  WA_LV70T-LTX01, sy-vline,
  WA_LV70T-LTX02, sy-vline,
  WA_LV70T-LTX03, sy-vline,
  WA_LV70T-LTX04, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LV70T 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_LV70T 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_LV70T INTO WA_LV70T.


*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 ISOLA, internal->external for field SPRVO
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_LV70T-SPRVO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LV70T-SPRVO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_LV70T-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LV70T-SPRAS.
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_LV70T_STR, 
SPRVO TYPE STRING,
SPTXT TYPE STRING,
TDID TYPE STRING,
TITLE TYPE STRING,
SELKZ TYPE STRING,
SPRAS TYPE STRING,
TTEXT TYPE STRING,
LTX01 TYPE STRING,
LTX02 TYPE STRING,
LTX03 TYPE STRING,
LTX04 TYPE STRING,
LTX05 TYPE STRING,
LTXKZ TYPE STRING,
UPDKZ TYPE STRING,
LINES TYPE STRING,
XFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LV70T_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_LV70T_STR-SPRVO sy-vline 
WA_LV70T_STR-SPTXT sy-vline 
WA_LV70T_STR-TDID sy-vline 
WA_LV70T_STR-TITLE sy-vline 
WA_LV70T_STR-SELKZ sy-vline 
WA_LV70T_STR-SPRAS sy-vline 
WA_LV70T_STR-TTEXT sy-vline 
WA_LV70T_STR-LTX01 sy-vline 
WA_LV70T_STR-LTX02 sy-vline 
WA_LV70T_STR-LTX03 sy-vline 
WA_LV70T_STR-LTX04 sy-vline 
WA_LV70T_STR-LTX05 sy-vline 
WA_LV70T_STR-LTXKZ sy-vline 
WA_LV70T_STR-UPDKZ sy-vline 
WA_LV70T_STR-LINES sy-vline 
WA_LV70T_STR-XFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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