ABAP Select data from SAP table INFO_TABLV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INFO_TABLV
*  INTO TABLE @DATA(IT_INFO_TABLV2).
*--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_INFO_TABLV INDEX 1 INTO DATA(WA_INFO_TABLV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INFO_TABLV>-TABNAME = 1.
<INFO_TABLV>-FIELDNAME = 1.
<INFO_TABLV>-AS4LOCAL = 1.
<INFO_TABLV>-DOMNAME = 1.
<INFO_TABLV>-DDLANGUAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INFO_TABLV-TABCLASS, sy-vline,
  WA_INFO_TABLV-KEYFLAG, sy-vline,
  WA_INFO_TABLV-MANDATORY, sy-vline,
  WA_INFO_TABLV-ROLLNAME, sy-vline,
  WA_INFO_TABLV-CHECKTABLE, sy-vline,
  WA_INFO_TABLV-INTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INFO_TABLV 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_INFO_TABLV 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_INFO_TABLV INTO WA_INFO_TABLV.


*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 DDLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_INFO_TABLV-DDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INFO_TABLV-DDLANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_INFO_TABLV-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INFO_TABLV-DATATYPE.
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_INFO_TABLV_STR, 
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
AS4LOCAL TYPE STRING,
DOMNAME TYPE STRING,
DDLANGUAGE TYPE STRING,
TABCLASS TYPE STRING,
KEYFLAG TYPE STRING,
MANDATORY TYPE STRING,
ROLLNAME TYPE STRING,
CHECKTABLE TYPE STRING,
INTTYPE TYPE STRING,
INTLEN TYPE STRING,
REFTABLE TYPE STRING,
PRECFIELD TYPE STRING,
REFFIELD TYPE STRING,
NOTNULL TYPE STRING,
DATATYPE TYPE STRING,
LENG TYPE STRING,
DEVCLASS TYPE STRING,
DDTEXT TYPE STRING,
REPTEXT TYPE STRING,
SCRTEXT_S TYPE STRING,
SCRTEXT_M TYPE STRING,
SCRTEXT_L TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INFO_TABLV_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_INFO_TABLV_STR-TABNAME sy-vline 
WA_INFO_TABLV_STR-FIELDNAME sy-vline 
WA_INFO_TABLV_STR-AS4LOCAL sy-vline 
WA_INFO_TABLV_STR-DOMNAME sy-vline 
WA_INFO_TABLV_STR-DDLANGUAGE sy-vline 
WA_INFO_TABLV_STR-TABCLASS sy-vline 
WA_INFO_TABLV_STR-KEYFLAG sy-vline 
WA_INFO_TABLV_STR-MANDATORY sy-vline 
WA_INFO_TABLV_STR-ROLLNAME sy-vline 
WA_INFO_TABLV_STR-CHECKTABLE sy-vline 
WA_INFO_TABLV_STR-INTTYPE sy-vline 
WA_INFO_TABLV_STR-INTLEN sy-vline 
WA_INFO_TABLV_STR-REFTABLE sy-vline 
WA_INFO_TABLV_STR-PRECFIELD sy-vline 
WA_INFO_TABLV_STR-REFFIELD sy-vline 
WA_INFO_TABLV_STR-NOTNULL sy-vline 
WA_INFO_TABLV_STR-DATATYPE sy-vline 
WA_INFO_TABLV_STR-LENG sy-vline 
WA_INFO_TABLV_STR-DEVCLASS sy-vline 
WA_INFO_TABLV_STR-DDTEXT sy-vline 
WA_INFO_TABLV_STR-REPTEXT sy-vline 
WA_INFO_TABLV_STR-SCRTEXT_S sy-vline 
WA_INFO_TABLV_STR-SCRTEXT_M sy-vline 
WA_INFO_TABLV_STR-SCRTEXT_L sy-vline      INTO ld_text SEPARATED BY SPACE.

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