Using 8i PersEd on machine with Runtime 8.0.5

Question

I've picked up a training copy of 8i Personal Edition and would like to use this on the same machine as an app that uses a runtime version of the 8.0.5 client. This runs on Win 2000.
1. Can this be done at all?
2. Can the 8i 8.1.5 client replace the 8.0.5 client?
3. Can the 8i univeral installer remove the 8.0.5 client?
4. Does VAW exist in 8i?
Thanks

Answer 1

The datatype of X and Y are both VARCHAR2(10) in this case.
Even if they are numbers, they have the same problem. The order get reversed and the data inserted is incorrect.
E.g. I have column M VARCHAR2(10) and column N NUMBER (2) in TABLE2.
String sql = "INSERT INTO TABLE2 (M, N) VALUES (?, ?)";
PreparedStatement ps = conn.prepareStatement(sql);
ps.setString(1, "one");
ps.setInt(2, 1);
ps.executeUpdate();
The insert operation is still successful. But when you select it becomes,
M N
? 0
This is because the order of the variables get reversed again.
Forgot to mention that if we have used Statement instead of PreparedStatement, we will not have such problem.
E.g. Statement stmt = conn.createStatement();
String sql = "INSERT INTO TABLE2 (M, N) VALUES ('one', 1)";
stmt.executeUpdate(stmt);
The above will insert fine and when we do a select, the result is correct.
M N
one 1
Though the above works fine, I still prefer to use PreparedStatement because of performance issue. So anyone has any idea what exactly is happening?
Hmmm, this ones a strange one.
What type are X and Y in the database? If they are of
type NUMBER why not try something like.
ps.setInt(1, 1);
OR
ps.setLong(2, 2);
and see if that makes any difference.