ABAP Select data from SAP table MDC_S_BP_CONTACTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDC_S_BP_CONTACTS
*  INTO TABLE @DATA(IT_MDC_S_BP_CONTACTS2).
*--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_MDC_S_BP_CONTACTS INDEX 1 INTO DATA(WA_MDC_S_BP_CONTACTS2).


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

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

ENDLOOP.

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

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


*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_MDC_S_BP_CONTACTS-RELATIONSHIPNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDC_S_BP_CONTACTS-RELATIONSHIPNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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