ABAP Select data from SAP table BAPIP0021TH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIP0021TH 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 BAPIP0021TH. 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 BAPIP0021TH 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_BAPIP0021TH TYPE STANDARD TABLE OF BAPIP0021TH,
      WA_BAPIP0021TH TYPE BAPIP0021TH,
      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: <BAPIP0021TH> TYPE BAPIP0021TH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIP0021TH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIP0021TH
  INTO TABLE IT_BAPIP0021TH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIP0021TH
*  INTO TABLE @DATA(IT_BAPIP0021TH2).
*--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_BAPIP0021TH INDEX 1 INTO DATA(WA_BAPIP0021TH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIP0021TH ASSIGNING <BAPIP0021TH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIP0021TH>-EMPLOYEENO = 1.
<BAPIP0021TH>-SUBTYPE = 1.
<BAPIP0021TH>-OBJECTID = 1.
<BAPIP0021TH>-LOCKINDIC = 1.
<BAPIP0021TH>-VALIDEND = 1.

ENDLOOP.

LOOP AT IT_BAPIP0021TH INTO WA_BAPIP0021TH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIP0021TH-VALIDBEGIN, sy-vline,
  WA_BAPIP0021TH-RECORDNR, sy-vline,
  WA_BAPIP0021TH-MEMBERTYPE, sy-vline,
  WA_BAPIP0021TH-NAMEOFSUBTYPE, sy-vline,
  WA_BAPIP0021TH-LASTNAME, sy-vline,
  WA_BAPIP0021TH-FIRSTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIP0021TH 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_BAPIP0021TH 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_BAPIP0021TH INTO WA_BAPIP0021TH.


*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_BAPIP0021TH-DATEOFBIRTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIP0021TH-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_BAPIP0021TH_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,
FORMOFADDRESS TYPE STRING,
TITLE TYPE STRING,
CHILDNUMBER TYPE STRING,
GENDER TYPE STRING,
NATIONALITY TYPE STRING,
SECONDNATIONALITY TYPE STRING,
THIRDNATIONALITY TYPE STRING,
BIRTHPLACE TYPE STRING,
COUNTRYOFBIRTH TYPE STRING,
DATEOFBIRTH TYPE STRING,
PHONENUMBER TYPE STRING,
ADDRESSNUMBERSOITROK TYPE STRING,
STREETTHAMBOL TYPE STRING,
CITY TYPE STRING,
DISTRICT TYPE STRING,
POSTALCODE TYPE STRING,
COUNTRY TYPE STRING,
COMMUNICATIONTYPE01 TYPE STRING,
COMMUNICATIONNUMBER01 TYPE STRING,
COMMUNICATIONTYPE02 TYPE STRING,
COMMUNICATIONNUMBER02 TYPE STRING,
COMMUNICATIONTYPE03 TYPE STRING,
COMMUNICATIONNUMBER03 TYPE STRING,
COMMUNICATIONTYPE04 TYPE STRING,
COMMUNICATIONNUMBER04 TYPE STRING,
ALIVEDECEASED TYPE STRING,
JOBTITLE TYPE STRING,
EMPLOYEROFFAMILYMEMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIP0021TH_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_BAPIP0021TH_STR-EMPLOYEENO sy-vline 
WA_BAPIP0021TH_STR-SUBTYPE sy-vline 
WA_BAPIP0021TH_STR-OBJECTID sy-vline 
WA_BAPIP0021TH_STR-LOCKINDIC sy-vline 
WA_BAPIP0021TH_STR-VALIDEND sy-vline 
WA_BAPIP0021TH_STR-VALIDBEGIN sy-vline 
WA_BAPIP0021TH_STR-RECORDNR sy-vline 
WA_BAPIP0021TH_STR-MEMBERTYPE sy-vline 
WA_BAPIP0021TH_STR-NAMEOFSUBTYPE sy-vline 
WA_BAPIP0021TH_STR-LASTNAME sy-vline 
WA_BAPIP0021TH_STR-FIRSTNAME sy-vline 
WA_BAPIP0021TH_STR-FORMOFADDRESS sy-vline 
WA_BAPIP0021TH_STR-TITLE sy-vline 
WA_BAPIP0021TH_STR-CHILDNUMBER sy-vline 
WA_BAPIP0021TH_STR-GENDER sy-vline 
WA_BAPIP0021TH_STR-NATIONALITY sy-vline 
WA_BAPIP0021TH_STR-SECONDNATIONALITY sy-vline 
WA_BAPIP0021TH_STR-THIRDNATIONALITY sy-vline 
WA_BAPIP0021TH_STR-BIRTHPLACE sy-vline 
WA_BAPIP0021TH_STR-COUNTRYOFBIRTH sy-vline 
WA_BAPIP0021TH_STR-DATEOFBIRTH sy-vline 
WA_BAPIP0021TH_STR-PHONENUMBER sy-vline 
WA_BAPIP0021TH_STR-ADDRESSNUMBERSOITROK sy-vline 
WA_BAPIP0021TH_STR-STREETTHAMBOL sy-vline 
WA_BAPIP0021TH_STR-CITY sy-vline 
WA_BAPIP0021TH_STR-DISTRICT sy-vline 
WA_BAPIP0021TH_STR-POSTALCODE sy-vline 
WA_BAPIP0021TH_STR-COUNTRY sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONTYPE01 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONNUMBER01 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONTYPE02 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONNUMBER02 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONTYPE03 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONNUMBER03 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONTYPE04 sy-vline 
WA_BAPIP0021TH_STR-COMMUNICATIONNUMBER04 sy-vline 
WA_BAPIP0021TH_STR-ALIVEDECEASED sy-vline 
WA_BAPIP0021TH_STR-JOBTITLE sy-vline 
WA_BAPIP0021TH_STR-EMPLOYEROFFAMILYMEMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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