ABAP Select data from SAP table DB6_GENERIC_DATA_POINT_DEC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB6_GENERIC_DATA_POINT_DEC 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 DB6_GENERIC_DATA_POINT_DEC. 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 DB6_GENERIC_DATA_POINT_DEC 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_DB6_GENERIC_DATA_POINT_DEC TYPE STANDARD TABLE OF DB6_GENERIC_DATA_POINT_DEC,
      WA_DB6_GENERIC_DATA_POINT_DEC TYPE DB6_GENERIC_DATA_POINT_DEC,
      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: <DB6_GENERIC_DATA_POINT_DEC> TYPE DB6_GENERIC_DATA_POINT_DEC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB6_GENERIC_DATA_POINT_DEC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB6_GENERIC_DATA_POINT_DEC
  INTO TABLE IT_DB6_GENERIC_DATA_POINT_DEC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB6_GENERIC_DATA_POINT_DEC
*  INTO TABLE @DATA(IT_DB6_GENERIC_DATA_POINT_DEC2).
*--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_DB6_GENERIC_DATA_POINT_DEC INDEX 1 INTO DATA(WA_DB6_GENERIC_DATA_POINT_DEC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB6_GENERIC_DATA_POINT_DEC ASSIGNING <DB6_GENERIC_DATA_POINT_DEC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB6_GENERIC_DATA_POINT_DEC>-LABEL = 1.
<DB6_GENERIC_DATA_POINT_DEC>-TIME = 1.
<DB6_GENERIC_DATA_POINT_DEC>-Y01 = 1.
<DB6_GENERIC_DATA_POINT_DEC>-Y02 = 1.
<DB6_GENERIC_DATA_POINT_DEC>-Y03 = 1.

ENDLOOP.

LOOP AT IT_DB6_GENERIC_DATA_POINT_DEC INTO WA_DB6_GENERIC_DATA_POINT_DEC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB6_GENERIC_DATA_POINT_DEC-Y04, sy-vline,
  WA_DB6_GENERIC_DATA_POINT_DEC-Y05, sy-vline,
  WA_DB6_GENERIC_DATA_POINT_DEC-Y06, sy-vline,
  WA_DB6_GENERIC_DATA_POINT_DEC-Y07, sy-vline,
  WA_DB6_GENERIC_DATA_POINT_DEC-Y08, sy-vline,
  WA_DB6_GENERIC_DATA_POINT_DEC-Y09, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB6_GENERIC_DATA_POINT_DEC 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_DB6_GENERIC_DATA_POINT_DEC 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_DB6_GENERIC_DATA_POINT_DEC INTO WA_DB6_GENERIC_DATA_POINT_DEC.


*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_DB6_GENERIC_DATA_POINT_DEC_STR, 
LABEL TYPE STRING,
TIME TYPE STRING,
Y01 TYPE STRING,
Y02 TYPE STRING,
Y03 TYPE STRING,
Y04 TYPE STRING,
Y05 TYPE STRING,
Y06 TYPE STRING,
Y07 TYPE STRING,
Y08 TYPE STRING,
Y09 TYPE STRING,
Y10 TYPE STRING,
Y11 TYPE STRING,
Y12 TYPE STRING,
Y13 TYPE STRING,
Y14 TYPE STRING,
Y15 TYPE STRING,
Y16 TYPE STRING,
Y17 TYPE STRING,
Y18 TYPE STRING,
Y19 TYPE STRING,
Y20 TYPE STRING,
Y21 TYPE STRING,
Y22 TYPE STRING,
Y23 TYPE STRING,
Y24 TYPE STRING,
Y25 TYPE STRING,
Y26 TYPE STRING,
Y27 TYPE STRING,
Y28 TYPE STRING,
Y29 TYPE STRING,
Y30 TYPE STRING,
Y31 TYPE STRING,
Y32 TYPE STRING,
Y33 TYPE STRING,
Y34 TYPE STRING,
Y35 TYPE STRING,
Y36 TYPE STRING,
Y37 TYPE STRING,
Y38 TYPE STRING,
Y39 TYPE STRING,
Y40 TYPE STRING,
Y41 TYPE STRING,
Y42 TYPE STRING,
Y43 TYPE STRING,
Y44 TYPE STRING,
Y45 TYPE STRING,
Y46 TYPE STRING,
Y47 TYPE STRING,
Y48 TYPE STRING,
Y49 TYPE STRING,
Y50 TYPE STRING,
Y51 TYPE STRING,
Y52 TYPE STRING,
Y53 TYPE STRING,
Y54 TYPE STRING,
Y55 TYPE STRING,
Y56 TYPE STRING,
Y57 TYPE STRING,
Y58 TYPE STRING,
Y59 TYPE STRING,
Y60 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB6_GENERIC_DATA_POINT_DEC_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_DB6_GENERIC_DATA_POINT_DEC_STR-LABEL sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-TIME sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y01 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y02 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y03 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y04 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y05 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y06 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y07 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y08 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y09 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y10 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y11 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y12 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y13 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y14 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y15 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y16 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y17 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y18 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y19 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y20 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y21 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y22 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y23 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y24 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y25 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y26 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y27 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y28 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y29 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y30 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y31 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y32 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y33 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y34 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y35 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y36 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y37 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y38 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y39 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y40 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y41 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y42 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y43 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y44 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y45 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y46 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y47 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y48 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y49 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y50 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y51 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y52 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y53 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y54 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y55 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y56 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y57 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y58 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y59 sy-vline 
WA_DB6_GENERIC_DATA_POINT_DEC_STR-Y60 sy-vline      INTO ld_text SEPARATED BY SPACE.

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