What is jdbc class forname?

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Is it possible to connect to multiple databases simultaneously? Using single statement can one update or extract data from multiple databases?

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Why we use jdbc instead of odbc?

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What is jdbc architecture?

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how do we get the connection from connection pool

1 Answers  

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What does executequery return in java?

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What is jdbc architecture in java?

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What are the classes and methods used for sending sql statements to database?

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What is statement and preparedstatement in java?

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What do you understand by DDL and DML statements?

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What is an outer join?

3 Answers   Infogain,

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java.lang.ClassNotFoundException:oracle.jdbc.driver.OracleDr iver? I get this error at run time.I used oracle10G. I set CLASS PATH:C:\oraclexe\app\oracle\product\10.2.0 \server\jdbc\lib\ojdbc14.jar; I write JDBC PROGRAM like import java.sql.*; class Example { public static void main(String args[]) { try { Class.forName ("oracle.jdbc.driver.OracleDriver"); System.out.println("Driver Loaded"); Connection con=DriverManager.getConnection ("jdbc:oracle:thin:@localhost:1521:xe","system","salmas"); System.out.println("Driver Connected"); Statement st=con.createStatement(); ResultSet rs=st.executeQuery("select * from emp"); while(rs.next()) { System.out.println(rs.getInt(1)); System.out.println(rs.getString(2)); System.out.println(rs.getString(3)); } st.close(); con.close(); } catch(Exception e) { System.out.println(e); } finally { System.out.println("it's finally block executed"); } } }

6 Answers   CTS,

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