ABAP Select data from SAP table ITS_ELEMEN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITS_ELEMEN
*  INTO TABLE @DATA(IT_ITS_ELEMEN2).
*--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_ITS_ELEMEN INDEX 1 INTO DATA(WA_ITS_ELEMEN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITS_ELEMEN>-TYPE = 1.
<ITS_ELEMEN>-NAME = 1.
<ITS_ELEMEN>-ELEMENT_OF = 1.
<ITS_ELEMEN>-LINE = 1.
<ITS_ELEMEN>-COL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITS_ELEMEN-LENGTH, sy-vline,
  WA_ITS_ELEMEN-VISLENGTH, sy-vline,
  WA_ITS_ELEMEN-HEIGHT, sy-vline,
  WA_ITS_ELEMEN-TEXT, sy-vline,
  WA_ITS_ELEMEN-LOOP_BLOCK, sy-vline,
  WA_ITS_ELEMEN-LOOP_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITS_ELEMEN 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_ITS_ELEMEN 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_ITS_ELEMEN INTO WA_ITS_ELEMEN.


*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_ITS_ELEMEN_STR, 
TYPE TYPE STRING,
NAME TYPE STRING,
ELEMENT_OF TYPE STRING,
LINE TYPE STRING,
COL TYPE STRING,
LENGTH TYPE STRING,
VISLENGTH TYPE STRING,
HEIGHT TYPE STRING,
TEXT TYPE STRING,
LOOP_BLOCK TYPE STRING,
LOOP_TYPE TYPE STRING,
LABELLEFT TYPE STRING,
LABELRIGHT TYPE STRING,
INPUT_FLD TYPE STRING,
OUTPUT_FLD TYPE STRING,
OUTPUTONLY TYPE STRING,
REQU_ENTRY TYPE STRING,
STAR_ENTRY TYPE STRING,
BRIGHT TYPE STRING,
INVISIBLE TYPE STRING,
TC_SEL_LNS TYPE STRING,
TC_SEL_CLS TYPE STRING,
TC_LSEL_CL TYPE STRING,
TC_SELCOL TYPE STRING,
TC_TITLE TYPE STRING,
TC_HEADER TYPE STRING,
TC_TITLE_F TYPE STRING,
TC_HEADING TYPE STRING,
TC_TABTYPE TYPE STRING,
TC_SEPAR_V TYPE STRING,
TC_SEPAR_H TYPE STRING,
BUTT_RIGHT TYPE STRING,
PUSH_FCODE TYPE STRING,
PUSH_FTYPE TYPE STRING,
FLD_FORMAT TYPE STRING,
FROM_DICT TYPE STRING,
POSS_ENTRY TYPE STRING,
ROLLING TYPE STRING,
ICON_QINFO TYPE STRING,
GROUP1 TYPE STRING,
GROUP2 TYPE STRING,
GROUP3 TYPE STRING,
GROUP4 TYPE STRING,
UP_LOWER TYPE STRING,
NO_TEMPL TYPE STRING,
NOSUPPORT TYPE STRING,
COLS_ TYPE STRING,
ROWS_ TYPE STRING,
COL_PERC TYPE STRING,
ROW_PERC TYPE STRING,
COL_NO_ROW TYPE STRING,
ROW_NO_ROW TYPE STRING,
FRAME_POS TYPE STRING,
FRAME_NO TYPE STRING,
DONE TYPE STRING,
MATCHCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITS_ELEMEN_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_ITS_ELEMEN_STR-TYPE sy-vline 
WA_ITS_ELEMEN_STR-NAME sy-vline 
WA_ITS_ELEMEN_STR-ELEMENT_OF sy-vline 
WA_ITS_ELEMEN_STR-LINE sy-vline 
WA_ITS_ELEMEN_STR-COL sy-vline 
WA_ITS_ELEMEN_STR-LENGTH sy-vline 
WA_ITS_ELEMEN_STR-VISLENGTH sy-vline 
WA_ITS_ELEMEN_STR-HEIGHT sy-vline 
WA_ITS_ELEMEN_STR-TEXT sy-vline 
WA_ITS_ELEMEN_STR-LOOP_BLOCK sy-vline 
WA_ITS_ELEMEN_STR-LOOP_TYPE sy-vline 
WA_ITS_ELEMEN_STR-LABELLEFT sy-vline 
WA_ITS_ELEMEN_STR-LABELRIGHT sy-vline 
WA_ITS_ELEMEN_STR-INPUT_FLD sy-vline 
WA_ITS_ELEMEN_STR-OUTPUT_FLD sy-vline 
WA_ITS_ELEMEN_STR-OUTPUTONLY sy-vline 
WA_ITS_ELEMEN_STR-REQU_ENTRY sy-vline 
WA_ITS_ELEMEN_STR-STAR_ENTRY sy-vline 
WA_ITS_ELEMEN_STR-BRIGHT sy-vline 
WA_ITS_ELEMEN_STR-INVISIBLE sy-vline 
WA_ITS_ELEMEN_STR-TC_SEL_LNS sy-vline 
WA_ITS_ELEMEN_STR-TC_SEL_CLS sy-vline 
WA_ITS_ELEMEN_STR-TC_LSEL_CL sy-vline 
WA_ITS_ELEMEN_STR-TC_SELCOL sy-vline 
WA_ITS_ELEMEN_STR-TC_TITLE sy-vline 
WA_ITS_ELEMEN_STR-TC_HEADER sy-vline 
WA_ITS_ELEMEN_STR-TC_TITLE_F sy-vline 
WA_ITS_ELEMEN_STR-TC_HEADING sy-vline 
WA_ITS_ELEMEN_STR-TC_TABTYPE sy-vline 
WA_ITS_ELEMEN_STR-TC_SEPAR_V sy-vline 
WA_ITS_ELEMEN_STR-TC_SEPAR_H sy-vline 
WA_ITS_ELEMEN_STR-BUTT_RIGHT sy-vline 
WA_ITS_ELEMEN_STR-PUSH_FCODE sy-vline 
WA_ITS_ELEMEN_STR-PUSH_FTYPE sy-vline 
WA_ITS_ELEMEN_STR-FLD_FORMAT sy-vline 
WA_ITS_ELEMEN_STR-FROM_DICT sy-vline 
WA_ITS_ELEMEN_STR-POSS_ENTRY sy-vline 
WA_ITS_ELEMEN_STR-ROLLING sy-vline 
WA_ITS_ELEMEN_STR-ICON_QINFO sy-vline 
WA_ITS_ELEMEN_STR-GROUP1 sy-vline 
WA_ITS_ELEMEN_STR-GROUP2 sy-vline 
WA_ITS_ELEMEN_STR-GROUP3 sy-vline 
WA_ITS_ELEMEN_STR-GROUP4 sy-vline 
WA_ITS_ELEMEN_STR-UP_LOWER sy-vline 
WA_ITS_ELEMEN_STR-NO_TEMPL sy-vline 
WA_ITS_ELEMEN_STR-NOSUPPORT sy-vline 
WA_ITS_ELEMEN_STR-COLS_ sy-vline 
WA_ITS_ELEMEN_STR-ROWS_ sy-vline 
WA_ITS_ELEMEN_STR-COL_PERC sy-vline 
WA_ITS_ELEMEN_STR-ROW_PERC sy-vline 
WA_ITS_ELEMEN_STR-COL_NO_ROW sy-vline 
WA_ITS_ELEMEN_STR-ROW_NO_ROW sy-vline 
WA_ITS_ELEMEN_STR-FRAME_POS sy-vline 
WA_ITS_ELEMEN_STR-FRAME_NO sy-vline 
WA_ITS_ELEMEN_STR-DONE sy-vline 
WA_ITS_ELEMEN_STR-MATCHCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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