ABAP Select data from SAP table CI_P0449 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CI_P0449 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 CI_P0449. 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 CI_P0449 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_CI_P0449 TYPE STANDARD TABLE OF CI_P0449,
      WA_CI_P0449 TYPE CI_P0449,
      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: <CI_P0449> TYPE CI_P0449.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CI_P0449.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CI_P0449
  INTO TABLE IT_CI_P0449.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CI_P0449
*  INTO TABLE @DATA(IT_CI_P04492).
*--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_CI_P0449 INDEX 1 INTO DATA(WA_CI_P04492).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CI_P0449 ASSIGNING <CI_P0449>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CI_P0449>-ZZTEL0045B = 1.
<CI_P0449>-ZZTEL0049B = 1.
<CI_P0449>-ZZTEL0053B = 1.
<CI_P0449>-ZZTEL0057B = 1.
<CI_P0449>-ZZTEL0061B = 1.

ENDLOOP.

LOOP AT IT_CI_P0449 INTO WA_CI_P0449.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CI_P0449-ZZTEL0065B, sy-vline,
  WA_CI_P0449-ZZTEL0069B, sy-vline,
  WA_CI_P0449-ZZTEL0073B, sy-vline,
  WA_CI_P0449-ZZTEL0077B, sy-vline,
  WA_CI_P0449-ZZTEL0081B, sy-vline,
  WA_CI_P0449-ZZTEL0085B, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CI_P0449 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_CI_P0449 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_CI_P0449 INTO WA_CI_P0449.


*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_CI_P0449_STR, 
ZZTEL0045B TYPE STRING,
ZZTEL0049B TYPE STRING,
ZZTEL0053B TYPE STRING,
ZZTEL0057B TYPE STRING,
ZZTEL0061B TYPE STRING,
ZZTEL0065B TYPE STRING,
ZZTEL0069B TYPE STRING,
ZZTEL0073B TYPE STRING,
ZZTEL0077B TYPE STRING,
ZZTEL0081B TYPE STRING,
ZZTEL0085B TYPE STRING,
ZZTEL0089B TYPE STRING,
ZZTEL0093B TYPE STRING,
ZZTEL0097B TYPE STRING,
ZZTEL0101B TYPE STRING,
ZZTEL0105B TYPE STRING,
ZZTEL0109B TYPE STRING,
ZZTEL0113B TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CI_P0449_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_CI_P0449_STR-ZZTEL0045B sy-vline 
WA_CI_P0449_STR-ZZTEL0049B sy-vline 
WA_CI_P0449_STR-ZZTEL0053B sy-vline 
WA_CI_P0449_STR-ZZTEL0057B sy-vline 
WA_CI_P0449_STR-ZZTEL0061B sy-vline 
WA_CI_P0449_STR-ZZTEL0065B sy-vline 
WA_CI_P0449_STR-ZZTEL0069B sy-vline 
WA_CI_P0449_STR-ZZTEL0073B sy-vline 
WA_CI_P0449_STR-ZZTEL0077B sy-vline 
WA_CI_P0449_STR-ZZTEL0081B sy-vline 
WA_CI_P0449_STR-ZZTEL0085B sy-vline 
WA_CI_P0449_STR-ZZTEL0089B sy-vline 
WA_CI_P0449_STR-ZZTEL0093B sy-vline 
WA_CI_P0449_STR-ZZTEL0097B sy-vline 
WA_CI_P0449_STR-ZZTEL0101B sy-vline 
WA_CI_P0449_STR-ZZTEL0105B sy-vline 
WA_CI_P0449_STR-ZZTEL0109B sy-vline 
WA_CI_P0449_STR-ZZTEL0113B sy-vline      INTO ld_text SEPARATED BY SPACE.

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