Zsolt Koppany <[EMAIL PROTECTED]> writes: > Hi, > > I tried to upgrade to derby 10.3.1.4 but I get strange error messages that I > didn't get with derby 10.2.2.0. > > I use 10.3.1.4 with ibatis-2.3.0.677. > > Any ideas? [...] > --- Cause: java.sql.SQLException: An attempt was made to get a data value of > type '<UNKNOWN>' from a data value of type 'VARCHAR'. [...] > at org.apache.derby.client.am.PreparedStatement.setNull(Unknown Source)
Hi, It seems like your application calls PreparedStatement.setNull() with an invalid type specification. If you change the type to java.sql.Types.VARCHAR, it will probably work. This was changed in 10.3.1.4 to make the network client driver and the embedded driver behave the same way. Please see this section in the release notes for details: http://db.apache.org/derby/releases/release-10.3.1.4.cgi#N10C87 -- Knut Anders
