ABAP Select data from SAP table BAPIP0021IT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIP0021IT 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 BAPIP0021IT. 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 BAPIP0021IT 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_BAPIP0021IT TYPE STANDARD TABLE OF BAPIP0021IT,
      WA_BAPIP0021IT TYPE BAPIP0021IT,
      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: <BAPIP0021IT> TYPE BAPIP0021IT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIP0021IT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIP0021IT
  INTO TABLE IT_BAPIP0021IT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIP0021IT
*  INTO TABLE @DATA(IT_BAPIP0021IT2).
*--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_BAPIP0021IT INDEX 1 INTO DATA(WA_BAPIP0021IT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIP0021IT ASSIGNING <BAPIP0021IT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIP0021IT>-EMPLOYEENO = 1.
<BAPIP0021IT>-SUBTYPE = 1.
<BAPIP0021IT>-OBJECTID = 1.
<BAPIP0021IT>-LOCKINDIC = 1.
<BAPIP0021IT>-VALIDEND = 1.

ENDLOOP.

LOOP AT IT_BAPIP0021IT INTO WA_BAPIP0021IT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIP0021IT-VALIDBEGIN, sy-vline,
  WA_BAPIP0021IT-RECORDNR, sy-vline,
  WA_BAPIP0021IT-MEMBERTYPE, sy-vline,
  WA_BAPIP0021IT-NAMEOFSUBTYPE, sy-vline,
  WA_BAPIP0021IT-LASTNAME, sy-vline,
  WA_BAPIP0021IT-FIRSTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIP0021IT 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_BAPIP0021IT 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_BAPIP0021IT INTO WA_BAPIP0021IT.


*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.

*Conversion exit PDATE, internal->external for field DATEOFBIRTH
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_BAPIP0021IT-DATEOFBIRTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIP0021IT-DATEOFBIRTH.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_BAPIP0021IT_STR, 
EMPLOYEENO TYPE STRING,
SUBTYPE TYPE STRING,
OBJECTID TYPE STRING,
LOCKINDIC TYPE STRING,
VALIDEND TYPE STRING,
VALIDBEGIN TYPE STRING,
RECORDNR TYPE STRING,
MEMBERTYPE TYPE STRING,
NAMEOFSUBTYPE TYPE STRING,
LASTNAME TYPE STRING,
FIRSTNAME TYPE STRING,
MAIDENNAME TYPE STRING,
GENDER TYPE STRING,
NAMEOFGENDER TYPE STRING,
DATEOFBIRTH TYPE STRING,
NATIONALITY TYPE STRING,
NATIONALITY2 TYPE STRING,
NATIONALITY3 TYPE STRING,
NAMEOFNATIO TYPE STRING,
NAMEOFNATIO2 TYPE STRING,
NAMEOFNATIO3 TYPE STRING,
LUOGO TYPE STRING,
PROVINCIA TYPE STRING,
NAMEOFPROVINCIA TYPE STRING,
COUNTRY TYPE STRING,
NAMEOFCOUNTRY TYPE STRING,
CODICEFISCALE TYPE STRING,
SPETTANZEEREDI TYPE STRING,
SPETTANZETFR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIP0021IT_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_BAPIP0021IT_STR-EMPLOYEENO sy-vline 
WA_BAPIP0021IT_STR-SUBTYPE sy-vline 
WA_BAPIP0021IT_STR-OBJECTID sy-vline 
WA_BAPIP0021IT_STR-LOCKINDIC sy-vline 
WA_BAPIP0021IT_STR-VALIDEND sy-vline 
WA_BAPIP0021IT_STR-VALIDBEGIN sy-vline 
WA_BAPIP0021IT_STR-RECORDNR sy-vline 
WA_BAPIP0021IT_STR-MEMBERTYPE sy-vline 
WA_BAPIP0021IT_STR-NAMEOFSUBTYPE sy-vline 
WA_BAPIP0021IT_STR-LASTNAME sy-vline 
WA_BAPIP0021IT_STR-FIRSTNAME sy-vline 
WA_BAPIP0021IT_STR-MAIDENNAME sy-vline 
WA_BAPIP0021IT_STR-GENDER sy-vline 
WA_BAPIP0021IT_STR-NAMEOFGENDER sy-vline 
WA_BAPIP0021IT_STR-DATEOFBIRTH sy-vline 
WA_BAPIP0021IT_STR-NATIONALITY sy-vline 
WA_BAPIP0021IT_STR-NATIONALITY2 sy-vline 
WA_BAPIP0021IT_STR-NATIONALITY3 sy-vline 
WA_BAPIP0021IT_STR-NAMEOFNATIO sy-vline 
WA_BAPIP0021IT_STR-NAMEOFNATIO2 sy-vline 
WA_BAPIP0021IT_STR-NAMEOFNATIO3 sy-vline 
WA_BAPIP0021IT_STR-LUOGO sy-vline 
WA_BAPIP0021IT_STR-PROVINCIA sy-vline 
WA_BAPIP0021IT_STR-NAMEOFPROVINCIA sy-vline 
WA_BAPIP0021IT_STR-COUNTRY sy-vline 
WA_BAPIP0021IT_STR-NAMEOFCOUNTRY sy-vline 
WA_BAPIP0021IT_STR-CODICEFISCALE sy-vline 
WA_BAPIP0021IT_STR-SPETTANZEEREDI sy-vline 
WA_BAPIP0021IT_STR-SPETTANZETFR sy-vline      INTO ld_text SEPARATED BY SPACE.

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