ABAP Select data from SAP table P_MD_BPCONTACTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P_MD_BPCONTACTS
*  INTO TABLE @DATA(IT_P_MD_BPCONTACTS2).
*--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_P_MD_BPCONTACTS INDEX 1 INTO DATA(WA_P_MD_BPCONTACTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P_MD_BPCONTACTS>-MANDT = 1.
<P_MD_BPCONTACTS>-RELATIONSHIPNUMBER = 1.
<P_MD_BPCONTACTS>-BUSINESSPARTNER1 = 1.
<P_MD_BPCONTACTS>-BUSINESSPARTNER2 = 1.
<P_MD_BPCONTACTS>-VALIDITYENDDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P_MD_BPCONTACTS-VALIDITYSTARTDATE, sy-vline,
  WA_P_MD_BPCONTACTS-FORMOFADDRESS, sy-vline,
  WA_P_MD_BPCONTACTS-FIRSTNAME, sy-vline,
  WA_P_MD_BPCONTACTS-LASTNAME, sy-vline,
  WA_P_MD_BPCONTACTS-BIRTHDATE, sy-vline,
  WA_P_MD_BPCONTACTS-CONTACTPERSONDEPARTMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P_MD_BPCONTACTS 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_P_MD_BPCONTACTS 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_P_MD_BPCONTACTS INTO WA_P_MD_BPCONTACTS.


*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 ALPHA, internal->external for field RELATIONSHIPNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P_MD_BPCONTACTS-RELATIONSHIPNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_MD_BPCONTACTS-RELATIONSHIPNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P_MD_BPCONTACTS-BUSINESSPARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_MD_BPCONTACTS-BUSINESSPARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P_MD_BPCONTACTS-BUSINESSPARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_MD_BPCONTACTS-BUSINESSPARTNER2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAILADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_P_MD_BPCONTACTS-EMAILADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_MD_BPCONTACTS-EMAILADDRESS.
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_P_MD_BPCONTACTS_STR, 
MANDT TYPE STRING,
RELATIONSHIPNUMBER TYPE STRING,
BUSINESSPARTNER1 TYPE STRING,
BUSINESSPARTNER2 TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
FORMOFADDRESS TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
BIRTHDATE TYPE STRING,
CONTACTPERSONDEPARTMENT TYPE STRING,
CONTACTPERSONFUNCTION TYPE STRING,
BUILDING TYPE STRING,
FLOOR TYPE STRING,
ROOMNUMBER TYPE STRING,
INTERNATIONALPHONENUMBER TYPE STRING,
PHONECOUNTRY TYPE STRING,
PHONENUMBER TYPE STRING,
PHONENUMBEREXTENSION TYPE STRING,
INTERNATIONALMOBILEPHONENUMBER TYPE STRING,
MOBILEPHONECOUNTRY TYPE STRING,
MOBILEPHONENUMBER TYPE STRING,
MOBILEPHONEEXTENSION TYPE STRING,
INTERNATIONALFAXNUMBER TYPE STRING,
FAXCOUNTRY TYPE STRING,
FAXNUMBER TYPE STRING,
FAXNUMBEREXTENSION TYPE STRING,
EMAILADDRESS TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
RELTYP TYPE STRING,
ISSTANDARDRELATIONSHIP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P_MD_BPCONTACTS_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_P_MD_BPCONTACTS_STR-MANDT sy-vline 
WA_P_MD_BPCONTACTS_STR-RELATIONSHIPNUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-BUSINESSPARTNER1 sy-vline 
WA_P_MD_BPCONTACTS_STR-BUSINESSPARTNER2 sy-vline 
WA_P_MD_BPCONTACTS_STR-VALIDITYENDDATE sy-vline 
WA_P_MD_BPCONTACTS_STR-VALIDITYSTARTDATE sy-vline 
WA_P_MD_BPCONTACTS_STR-FORMOFADDRESS sy-vline 
WA_P_MD_BPCONTACTS_STR-FIRSTNAME sy-vline 
WA_P_MD_BPCONTACTS_STR-LASTNAME sy-vline 
WA_P_MD_BPCONTACTS_STR-BIRTHDATE sy-vline 
WA_P_MD_BPCONTACTS_STR-CONTACTPERSONDEPARTMENT sy-vline 
WA_P_MD_BPCONTACTS_STR-CONTACTPERSONFUNCTION sy-vline 
WA_P_MD_BPCONTACTS_STR-BUILDING sy-vline 
WA_P_MD_BPCONTACTS_STR-FLOOR sy-vline 
WA_P_MD_BPCONTACTS_STR-ROOMNUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-INTERNATIONALPHONENUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-PHONECOUNTRY sy-vline 
WA_P_MD_BPCONTACTS_STR-PHONENUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-PHONENUMBEREXTENSION sy-vline 
WA_P_MD_BPCONTACTS_STR-INTERNATIONALMOBILEPHONENUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-MOBILEPHONECOUNTRY sy-vline 
WA_P_MD_BPCONTACTS_STR-MOBILEPHONENUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-MOBILEPHONEEXTENSION sy-vline 
WA_P_MD_BPCONTACTS_STR-INTERNATIONALFAXNUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-FAXCOUNTRY sy-vline 
WA_P_MD_BPCONTACTS_STR-FAXNUMBER sy-vline 
WA_P_MD_BPCONTACTS_STR-FAXNUMBEREXTENSION sy-vline 
WA_P_MD_BPCONTACTS_STR-EMAILADDRESS sy-vline 
WA_P_MD_BPCONTACTS_STR-AUTHORIZATIONGROUP sy-vline 
WA_P_MD_BPCONTACTS_STR-RELTYP sy-vline 
WA_P_MD_BPCONTACTS_STR-ISSTANDARDRELATIONSHIP sy-vline      INTO ld_text SEPARATED BY SPACE.

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