ABAP Select data from SAP table CONF_DATO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CONF_DATO
*  INTO TABLE @DATA(IT_CONF_DATO2).
*--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_CONF_DATO INDEX 1 INTO DATA(WA_CONF_DATO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CONF_DATO>-ISDD = 1.
<CONF_DATO>-ISDZ = 1.
<CONF_DATO>-IERD = 1.
<CONF_DATO>-IERZ = 1.
<CONF_DATO>-ISBD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CONF_DATO-ISBZ, sy-vline,
  WA_CONF_DATO-IEBD, sy-vline,
  WA_CONF_DATO-IEBZ, sy-vline,
  WA_CONF_DATO-ISAD, sy-vline,
  WA_CONF_DATO-ISAZ, sy-vline,
  WA_CONF_DATO-IEDD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CONF_DATO 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_CONF_DATO 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_CONF_DATO INTO WA_CONF_DATO.


*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_CONF_DATO_STR, 
ISDD TYPE STRING,
ISDZ TYPE STRING,
IERD TYPE STRING,
IERZ TYPE STRING,
ISBD TYPE STRING,
ISBZ TYPE STRING,
IEBD TYPE STRING,
IEBZ TYPE STRING,
ISAD TYPE STRING,
ISAZ TYPE STRING,
IEDD TYPE STRING,
IEDZ TYPE STRING,
PEDD TYPE STRING,
PEDZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CONF_DATO_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_CONF_DATO_STR-ISDD sy-vline 
WA_CONF_DATO_STR-ISDZ sy-vline 
WA_CONF_DATO_STR-IERD sy-vline 
WA_CONF_DATO_STR-IERZ sy-vline 
WA_CONF_DATO_STR-ISBD sy-vline 
WA_CONF_DATO_STR-ISBZ sy-vline 
WA_CONF_DATO_STR-IEBD sy-vline 
WA_CONF_DATO_STR-IEBZ sy-vline 
WA_CONF_DATO_STR-ISAD sy-vline 
WA_CONF_DATO_STR-ISAZ sy-vline 
WA_CONF_DATO_STR-IEDD sy-vline 
WA_CONF_DATO_STR-IEDZ sy-vline 
WA_CONF_DATO_STR-PEDD sy-vline 
WA_CONF_DATO_STR-PEDZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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