× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



It wouldn't have worked before one of the last TR's to 7.2...

Now it does.

Charles

On Wed, Oct 6, 2021 at 5:19 PM Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

Yep this, autocasting by the db...

Charles

On Wed, Oct 6, 2021 at 2:19 PM Niels Liisberg <nli@xxxxxxxxxxxxxxxxx>
wrote:

I think it is the auto-cast in Db2 that kicks in. And why statement 3
fails. For that it can not cast the current object value.


ons. 6. okt. 2021 kl. 21.58 skrev David Gibbs via JAVA400-L <
java400-l@xxxxxxxxxxxxxxxxxx>:

Folks:

I just encountered a situation where JDBC allowed me to update rows in a
table where the values did not match the column definition.

As long as you use the setObject method, you can set a numeric column to
a string value and a character column with a numeric value.

The value contents have to match the column definition, but it doesn't
seem to care what the data type being passed in.

For instance:

You create a table as such ...

create table testtab1 (
decfield decimal(8,0),
charfield char(10)
)

... and then run code like this ...

try (
Connection conn = DriverManager.getConnection(url, props);
PreparedStatement stmt = conn.prepareStatement("insert into
dxglib/testtab1 (decfield,charfield) values(?,?)");
) {

stmt.setObject(1, 1);
stmt.setObject(2, "xyz");
stmt.executeUpdate();

stmt.setObject(1, "2");
stmt.setObject(2, 3);
stmt.executeUpdate();

stmt.setObject(1, "A");
stmt.setObject(2, 3);
stmt.executeUpdate();

} catch (Exception e) {
e.printStackTrace();
}

.. the first two updates will work fine, but the 3rd will fail.

david
--
I'm riding in the American Diabetes Association's Tour de Cure to raise
money for diabetes research, education, advocacy, and awareness. You
can make a tax-deductible donation to my ride by visiting
https://mideml.diabetessucks.net.

You can see where my donations come from by visiting my interactive
donation map ... https://mideml.diabetessucks.net/map (it's a geeky
thing).
--
This is the Java Programming on and around the IBM i (JAVA400-L) mailing
list
To post a message email: JAVA400-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/java400-l
or email: JAVA400-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/java400-l.

Help support midrange.com by shopping at amazon.com with our affiliate
link: https://amazon.midrange.com

--
This is the Java Programming on and around the IBM i (JAVA400-L) mailing
list
To post a message email: JAVA400-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/java400-l
or email: JAVA400-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/java400-l.

Help support midrange.com by shopping at amazon.com with our affiliate
link: https://amazon.midrange.com



As an Amazon Associate we earn from qualifying purchases.

This thread ...

Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.