Обсуждение: psql and jdbc insert discrepencies

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psql and jdbc insert discrepencies

От
"Clyde Wright"
Дата:
I've newly installed Postgres 7.3.3 on Redhat 6.0 and have a Java class
that inserts rows into a table NAME with attributes ID (serial) and
VALUE (text).

After running the program once and inserting a name, I get no errors.  I
then SELECT * FROM NAME; via JDBC and it returns the 1 row that has been
inserted.  However, when I do a SELECT * FROM NAME; from psql in Linux,
0 rows are returned.  When I do an insert from psql, the auto-id is 2
(as it should be) but still, upon querying the database via psql, only
the second row inserted is returned.

What I am missing here?

Cheers,
Clyde


Re: psql and jdbc insert discrepencies

От
Barry Lind
Дата:
Clyde,

Are you commiting the insert in your jdbc code?  If you do an insert
then a select in the same transaction the select will see the row, but
no other transactions will.  If you then fail to commit the transaction
it will automatically rollback and thus the row will never be seen.

--Barry

Clyde Wright wrote:
> I've newly installed Postgres 7.3.3 on Redhat 6.0 and have a Java class
> that inserts rows into a table NAME with attributes ID (serial) and
> VALUE (text).
>
> After running the program once and inserting a name, I get no errors.  I
> then SELECT * FROM NAME; via JDBC and it returns the 1 row that has been
> inserted.  However, when I do a SELECT * FROM NAME; from psql in Linux,
> 0 rows are returned.  When I do an insert from psql, the auto-id is 2
> (as it should be) but still, upon querying the database via psql, only
> the second row inserted is returned.
>
> What I am missing here?
>
> Cheers,
> Clyde
>
>
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