What is mean: No suitable driver? Thanks!

Question

Hi, everybody:
I have a simple java code at below,
import java.sql.*;
import oracle.jdbc.*;
class ... {
     public static void main (...) throws SQLException {
          DriverManager.registerDriver (new oracle.jdbc.OracleDriver ());
          oracle.jdbc.OracleConnection conn = (oracle.jdbc.OracleConnection) DriverManager.getConnection ("jdbc.oracle.thin.@...)
there is no error when compiled it, but launch the code will prompte one error:
Exception in thread "main" java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getConnection(DriverManager.java:532)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
if modify the 6th line:
oracle.jdbc.OracleConnection conn = DriverManager.getConnection (...);
there is one error message prompts as compile it:
incompatible types
found: java.sql.Connection
required: oracle.jdbc.OracleConnection
How correct the code, Thanks very much!
The version of jdk is j2se1.4.2 and the oracle is 9.2.0.

Answer 1

Hi,
Your lines of code look quite OK to obtain the connection. I was not able to reproduce your error unless I comment the line for registering the driver.
i.e if the line is //DriverManager.registerDriver (new oracle.jdbc.OracleDriver ()); then I get the error. Else, the connection is obtained.
Not sure if it solves your problem.
As far as the second error is concerned, the error is valid because, you are trying to get an oracle.jdbc.OracleConnection object using java.sql.Connection object. You need to cast the later for them to be compatible.
Hope that helps.
Savitha.