ABAP Select data from SAP table TABLEVIEWCOLUMN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TABLEVIEWCOLUMN
*  INTO TABLE @DATA(IT_TABLEVIEWCOLUMN2).
*--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_TABLEVIEWCOLUMN INDEX 1 INTO DATA(WA_TABLEVIEWCOLUMN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TABLEVIEWCOLUMN>-COLUMNNAME = 1.
<TABLEVIEWCOLUMN>-TITLE = 1.
<TABLEVIEWCOLUMN>-TYPE = 1.
<TABLEVIEWCOLUMN>-WIDTH = 1.
<TABLEVIEWCOLUMN>-LINKCOLUMNKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TABLEVIEWCOLUMN-LINKCLICKTARGET, sy-vline,
  WA_TABLEVIEWCOLUMN-TOOLTIPCOLUMNKEY, sy-vline,
  WA_TABLEVIEWCOLUMN-UNITCOLUMNKEY, sy-vline,
  WA_TABLEVIEWCOLUMN-ISAPPENDUNIT, sy-vline,
  WA_TABLEVIEWCOLUMN-DATATYPE, sy-vline,
  WA_TABLEVIEWCOLUMN-WRAPPING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TABLEVIEWCOLUMN 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_TABLEVIEWCOLUMN 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_TABLEVIEWCOLUMN INTO WA_TABLEVIEWCOLUMN.


*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_TABLEVIEWCOLUMN_STR, 
COLUMNNAME TYPE STRING,
TITLE TYPE STRING,
TYPE TYPE STRING,
WIDTH TYPE STRING,
LINKCOLUMNKEY TYPE STRING,
LINKCLICKTARGET TYPE STRING,
TOOLTIPCOLUMNKEY TYPE STRING,
UNITCOLUMNKEY TYPE STRING,
ISAPPENDUNIT TYPE STRING,
DATATYPE TYPE STRING,
WRAPPING TYPE STRING,
M_ENCODE TYPE STRING,
ONCELLCLICK TYPE STRING,
ONITEMCLICK TYPE STRING,
HORIZONTALALIGNMENT TYPE STRING,
VERTICALALIGNMENT TYPE STRING,
CELLINVALIDKEY TYPE STRING,
CELLDISABLEDKEY TYPE STRING,
CELLDESIGNKEY TYPE STRING,
USERCONTENT TYPE STRING,
FIXEDCOLUMN TYPE STRING,
SORT TYPE STRING,
EDIT TYPE STRING,
DISPLAY_BEE TYPE STRING,
EDIT_BEE TYPE STRING,
PRESELECTEDSORTDIRECTION TYPE STRING,
MANDATORY TYPE STRING,
INDEX TYPE STRING,
DISABLE_FILTER TYPE STRING,
TOOLTIPHEADER TYPE STRING,
ALIGNFORSIGNEDNUMBERS TYPE STRING,
FORCETEXTDIRECTIONLTR TYPE STRING,
ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TABLEVIEWCOLUMN_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_TABLEVIEWCOLUMN_STR-COLUMNNAME sy-vline 
WA_TABLEVIEWCOLUMN_STR-TITLE sy-vline 
WA_TABLEVIEWCOLUMN_STR-TYPE sy-vline 
WA_TABLEVIEWCOLUMN_STR-WIDTH sy-vline 
WA_TABLEVIEWCOLUMN_STR-LINKCOLUMNKEY sy-vline 
WA_TABLEVIEWCOLUMN_STR-LINKCLICKTARGET sy-vline 
WA_TABLEVIEWCOLUMN_STR-TOOLTIPCOLUMNKEY sy-vline 
WA_TABLEVIEWCOLUMN_STR-UNITCOLUMNKEY sy-vline 
WA_TABLEVIEWCOLUMN_STR-ISAPPENDUNIT sy-vline 
WA_TABLEVIEWCOLUMN_STR-DATATYPE sy-vline 
WA_TABLEVIEWCOLUMN_STR-WRAPPING sy-vline 
WA_TABLEVIEWCOLUMN_STR-M_ENCODE sy-vline 
WA_TABLEVIEWCOLUMN_STR-ONCELLCLICK sy-vline 
WA_TABLEVIEWCOLUMN_STR-ONITEMCLICK sy-vline 
WA_TABLEVIEWCOLUMN_STR-HORIZONTALALIGNMENT sy-vline 
WA_TABLEVIEWCOLUMN_STR-VERTICALALIGNMENT sy-vline 
WA_TABLEVIEWCOLUMN_STR-CELLINVALIDKEY sy-vline 
WA_TABLEVIEWCOLUMN_STR-CELLDISABLEDKEY sy-vline 
WA_TABLEVIEWCOLUMN_STR-CELLDESIGNKEY sy-vline 
WA_TABLEVIEWCOLUMN_STR-USERCONTENT sy-vline 
WA_TABLEVIEWCOLUMN_STR-FIXEDCOLUMN sy-vline 
WA_TABLEVIEWCOLUMN_STR-SORT sy-vline 
WA_TABLEVIEWCOLUMN_STR-EDIT sy-vline 
WA_TABLEVIEWCOLUMN_STR-DISPLAY_BEE sy-vline 
WA_TABLEVIEWCOLUMN_STR-EDIT_BEE sy-vline 
WA_TABLEVIEWCOLUMN_STR-PRESELECTEDSORTDIRECTION sy-vline 
WA_TABLEVIEWCOLUMN_STR-MANDATORY sy-vline 
WA_TABLEVIEWCOLUMN_STR-INDEX sy-vline 
WA_TABLEVIEWCOLUMN_STR-DISABLE_FILTER sy-vline 
WA_TABLEVIEWCOLUMN_STR-TOOLTIPHEADER sy-vline 
WA_TABLEVIEWCOLUMN_STR-ALIGNFORSIGNEDNUMBERS sy-vline 
WA_TABLEVIEWCOLUMN_STR-FORCETEXTDIRECTIONLTR sy-vline 
WA_TABLEVIEWCOLUMN_STR-ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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