Re: MoveToInsertRow on a table without a primary key
От | Dave Cramer |
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Тема | Re: MoveToInsertRow on a table without a primary key |
Дата | |
Msg-id | CADK3HH+YT2TJKG-4zOQ-G28NivBD2AMbqSYhGv3DtDeyuOqN9g@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: MoveToInsertRow on a table without a primary key (Andrew Hastie <andrew@ahastie.net>) |
Список | pgsql-jdbc |
Unfortunately the API docs are not particularly great. This http://docs.oracle.com/javase/1.3/docs/guide/jdbc/getstart/resultset.html gives a strong suggestion to use a primary key Dave Cramer dave.cramer(at)credativ(dot)ca http://www.credativ.ca On Wed, Mar 14, 2012 at 10:46 AM, Andrew Hastie <andrew@ahastie.net> wrote: > Not sure if this helps but:- > 1. Examination of the JBC4 spec makes no mention of a PK being a > pre-requisite for an updatable ResultSet. It implies "cursors" or similar > are employed. > 2. MS SQLServer 2008 and IBM DB2 for Linux/Unix/Windows also have a similar > restriction. > > Anyway, a table with no PK is bad design of your database tables anyway ;-) > > Andrew > > > On 14/03/12 14:05, Dave Cramer wrote: >> >> Pretty sure a primary key is a pre-requisite for an updatable result set. >> >> Dave Cramer >> >> dave.cramer(at)credativ(dot)ca >> http://www.credativ.ca >> >> >> >> On Wed, Mar 14, 2012 at 9:03 AM,<patrick.balleux@gmail.com> wrote: >>> >>> Hello all, >>> >>> I have a table in a database that does not have a primary key. In the >>> process of migrating data from Oracle to Postgres, I am using ResultSets to >>> populate the Postgres tables. >>> >>> Basically, all is working well except for tables that do not have a >>> primary key. When I reach the "movetoinsertrow" instruction in my code, the >>> jdbc driver raises an exception about the missing primary key. >>> >>> The workaround would be to add a temporary primary key to such table, but >>> I want to avoid that. I did the same test with HSQLDB and it works. To me, >>> it seems like a bug. >>> >>> I googled around for the solution, but found nothing. >>> >>> Any tips? >>> >>> -- >>> Sent via pgsql-jdbc mailing list (pgsql-jdbc@postgresql.org) >>> To make changes to your subscription: >>> http://www.postgresql.org/mailpref/pgsql-jdbc > > > -- > Sent via pgsql-jdbc mailing list (pgsql-jdbc@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-jdbc
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