Re: JDBC Driver -- getImportedKeys

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От Kris Jurka
Тема Re: JDBC Driver -- getImportedKeys
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Msg-id Pine.LNX.4.33.0301071506260.8135-100000@leary.csoft.net
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Ответ на JDBC Driver -- getImportedKeys  ("Candis Thomas" <cthomas@nubridges.com>)
Список pgsql-jdbc
Do you have a stack trace of the StringIndexOutOfBoundsException ?

Kris Jurka

On Tue, 7 Jan 2003, Candis Thomas wrote:

> Hello all!,
>
> I'm relatively new to the mailing list, but am indeed having a serious problem with a particular method when using
thepostgreSQL JDBC driver. 
>
> I am attempting to obtain metadata about the columns within a table, more specifically the primary and foreign keys
withina table.  Though the DataBaseMetaData method getPrimaryKeys() executes splendidly, I am getting errors when using
thegetImportedKeys() method.  The code below attempts to determine whether or not a particular column is a foreign key. 
>
> The code that I am using is as follows:
>     rs = getMetaData().getImportedKeys(null, null, getTableName());
>     boolean keepLooking = false;
>       if(rs != null){
>         System.out.println("Resut not null, therefore there are imported keys");
>         while(rs.next() && keepLooking){
>           System.out.println("Inside 'rs.next()'");
>         //Check to see if a particular column is a foreign key
>           if(rs.getString("FKCOLUMN_NAME").equalsIgnoreCase(getColumnName())){
>             setForeignKey(true);
>         keepLooking = false;
>         }
>         }//end while
>       }//if result set isn't null
>
>
> The errors that I receive are detailed below (note the listed drivers were added to my classpath):
>     postgreSQL driver 7.3.1 - java.lang.StringIndexOutOfBoundsException: String index out of range: -3
>     postgreSQL jdbc driver 7.3.0 (jdbc 3.0) - java.lang.StringIndexOutOfBoundsException: String index out of range:
-3
>
> I am attempting to retrieve information on the following table with the following columns:
> APPLIANCE
>     Keyname             Unique     Primary     Field
>     =======            ======    =======    =====
>     app_mac_address         Yes         No         app_mac_address_net
>     app_mac_address_net_idx No         No         app_mac_address_net
>     appliance_company_id_idx No         No         company_id
>     appliance_pkey         Yes         Yes         appliance_id
>
> Does anyone have any ideas about what the problem could be?  Is this the most recent combination of postgreSQL
driver/postgreSQLjdbc driver that I should use?  I'm really stumped by this issue and welcome any feedback that anyone
mayhave. 
>
> Thanks!
>
> Candis
>
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