Truncating data in prepared statement

Question

I'm using a prepared statement to pull data out of one SQL database into a recordSet, and another prepared statement to take the data from the recordSet and insert the data into another SQL database. In the source database, the lastname and firstname fields are both defined as char(25) and the phone field is defined as char(24). In the receiving database, the lastname and firstname fields are each defined as nvarchar(100) and the phone field is defined as nvarchar(50).
The program will only run successfully if I trim the data in each field to the first 16 characters. Any time it hits a field with more than 16 characters, it throws a SQL Error: String data, right truncation.
The setObject statements are:
update.setObject(1,lastname,java.sql.Types.VARCHAR);
update.setObject(2,firstname,java.sql.Types.VARCHAR);
update.setObject(3,phone1,java.sql.Types.VARCHAR);
int rowCount = update.executeUpdate();
Why can't I push the entire 25-character name fields into the 100-character name fields? And the 24-character phone field into the 50-character phone field?

Answer 1

mrw127 wrote:
sun.jdbc.odbc.JdbcOdbcDriver
I don't know how to tell which version it is.
It would revert to the ODBC driver version then rather than anything in java.
I spent a couple hours trying to use com.microsoft.sqlserver.jdbc.SQLServerDriver that I downloaded on Monday but could not get it to work. I even put both .jars in the c:\temp dir, updated my classpath, even rebooted after making the changes, but it could not find the driver. Reverted back to the JdbcOdbcDriver.The current MS driver seems to work adequately and so does the jTDS driver from soucreforge. I would suspect both would support nvarchar correctly.