ABAP Select data from SAP table UKM_ATTR_ALV_OUTPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UKM_ATTR_ALV_OUTPUT
*  INTO TABLE @DATA(IT_UKM_ATTR_ALV_OUTPUT2).
*--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_UKM_ATTR_ALV_OUTPUT INDEX 1 INTO DATA(WA_UKM_ATTR_ALV_OUTPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UKM_ATTR_ALV_OUTPUT>-COMPONENT1 = 1.
<UKM_ATTR_ALV_OUTPUT>-TABNAME1 = 1.
<UKM_ATTR_ALV_OUTPUT>-FIELDNAME1 = 1.
<UKM_ATTR_ALV_OUTPUT>-DATATYPE1 = 1.
<UKM_ATTR_ALV_OUTPUT>-F4_1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UKM_ATTR_ALV_OUTPUT-F4_VALUES1, sy-vline,
  WA_UKM_ATTR_ALV_OUTPUT-LOWERCASE1, sy-vline,
  WA_UKM_ATTR_ALV_OUTPUT-COMPONENT2, sy-vline,
  WA_UKM_ATTR_ALV_OUTPUT-TABNAME2, sy-vline,
  WA_UKM_ATTR_ALV_OUTPUT-FIELDNAME2, sy-vline,
  WA_UKM_ATTR_ALV_OUTPUT-DATATYPE2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UKM_ATTR_ALV_OUTPUT 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_UKM_ATTR_ALV_OUTPUT 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_UKM_ATTR_ALV_OUTPUT INTO WA_UKM_ATTR_ALV_OUTPUT.


*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 DTYPE, internal->external for field DATATYPE1
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_UKM_ATTR_ALV_OUTPUT-DATATYPE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UKM_ATTR_ALV_OUTPUT-DATATYPE1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE2
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_UKM_ATTR_ALV_OUTPUT-DATATYPE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UKM_ATTR_ALV_OUTPUT-DATATYPE2.
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_UKM_ATTR_ALV_OUTPUT_STR, 
COMPONENT1 TYPE STRING,
TABNAME1 TYPE STRING,
FIELDNAME1 TYPE STRING,
DATATYPE1 TYPE STRING,
F4_1 TYPE STRING,
F4_VALUES1 TYPE STRING,
LOWERCASE1 TYPE STRING,
COMPONENT2 TYPE STRING,
TABNAME2 TYPE STRING,
FIELDNAME2 TYPE STRING,
DATATYPE2 TYPE STRING,
F4_2 TYPE STRING,
F4_VALUES2 TYPE STRING,
LOWERCASE2 TYPE STRING,
EMPTY1 TYPE STRING,
NAME1 TYPE STRING,
VALUE1 TYPE STRING,
OPER1 TYPE STRING,
TEXT1 TYPE STRING,
EMPTY2 TYPE STRING,
NAME2 TYPE STRING,
VALUE2 TYPE STRING,
OPER2 TYPE STRING,
TEXT2 TYPE STRING,
COL_C TYPE STRING,
CEL_STYLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UKM_ATTR_ALV_OUTPUT_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_UKM_ATTR_ALV_OUTPUT_STR-COMPONENT1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-TABNAME1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-FIELDNAME1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-DATATYPE1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-F4_1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-F4_VALUES1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-LOWERCASE1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-COMPONENT2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-TABNAME2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-FIELDNAME2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-DATATYPE2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-F4_2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-F4_VALUES2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-LOWERCASE2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-EMPTY1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-NAME1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-VALUE1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-OPER1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-TEXT1 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-EMPTY2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-NAME2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-VALUE2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-OPER2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-TEXT2 sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-COL_C sy-vline 
WA_UKM_ATTR_ALV_OUTPUT_STR-CEL_STYLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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