ABAP Select data from SAP table VIFPARAMETERUI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VIFPARAMETERUI 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 VIFPARAMETERUI. 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 VIFPARAMETERUI 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_VIFPARAMETERUI TYPE STANDARD TABLE OF VIFPARAMETERUI,
      WA_VIFPARAMETERUI TYPE VIFPARAMETERUI,
      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: <VIFPARAMETERUI> TYPE VIFPARAMETERUI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIFPARAMETERUI
*  INTO TABLE @DATA(IT_VIFPARAMETERUI2).
*--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_VIFPARAMETERUI INDEX 1 INTO DATA(WA_VIFPARAMETERUI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIFPARAMETERUI>-PARAMNAME = 1.
<VIFPARAMETERUI>-PARAMTYPE = 1.
<VIFPARAMETERUI>-TYPENAME = 1.
<VIFPARAMETERUI>-TYPE = 1.
<VIFPARAMETERUI>-STRUCID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIFPARAMETERUI-FIELDNAME, sy-vline,
  WA_VIFPARAMETERUI-FIELDPOS, sy-vline,
  WA_VIFPARAMETERUI-PARENTID, sy-vline,
  WA_VIFPARAMETERUI-PARAMREF, sy-vline,
  WA_VIFPARAMETERUI-FIELDREF, sy-vline,
  WA_VIFPARAMETERUI-HIDDEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIFPARAMETERUI 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_VIFPARAMETERUI 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_VIFPARAMETERUI INTO WA_VIFPARAMETERUI.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VIFPARAMETERUI_STR, 
PARAMNAME TYPE STRING,
PARAMTYPE TYPE STRING,
TYPENAME TYPE STRING,
TYPE TYPE STRING,
STRUCID TYPE STRING,
FIELDNAME TYPE STRING,
FIELDPOS TYPE STRING,
PARENTID TYPE STRING,
PARAMREF TYPE STRING,
FIELDREF TYPE STRING,
HIDDEN TYPE STRING,
DEFAULT_VALUE TYPE STRING,
IS_INITIAL TYPE STRING,
IS_OPTIONAL TYPE STRING,
ORIG_FIELDNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIFPARAMETERUI_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_VIFPARAMETERUI_STR-PARAMNAME sy-vline 
WA_VIFPARAMETERUI_STR-PARAMTYPE sy-vline 
WA_VIFPARAMETERUI_STR-TYPENAME sy-vline 
WA_VIFPARAMETERUI_STR-TYPE sy-vline 
WA_VIFPARAMETERUI_STR-STRUCID sy-vline 
WA_VIFPARAMETERUI_STR-FIELDNAME sy-vline 
WA_VIFPARAMETERUI_STR-FIELDPOS sy-vline 
WA_VIFPARAMETERUI_STR-PARENTID sy-vline 
WA_VIFPARAMETERUI_STR-PARAMREF sy-vline 
WA_VIFPARAMETERUI_STR-FIELDREF sy-vline 
WA_VIFPARAMETERUI_STR-HIDDEN sy-vline 
WA_VIFPARAMETERUI_STR-DEFAULT_VALUE sy-vline 
WA_VIFPARAMETERUI_STR-IS_INITIAL sy-vline 
WA_VIFPARAMETERUI_STR-IS_OPTIONAL sy-vline 
WA_VIFPARAMETERUI_STR-ORIG_FIELDNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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