What is the meaning of connection?
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How many isolation levels are supported in JDBC and what are they?
What are the different types of statements in jdbc?
What is jdbc? Describe the steps needed to execute a sql query using jdbc.
How can you create jdbc statements?
Can we have foreign key reference to a non primary key column ?
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"); } } }
How do I insert/update records with some of the columns having NULL value?
write down exceptions those appear in java programs when u write JDBC Programs?
Explain some new features available in jdbc 4.0?
What is jdbc stand for?
What is jdbc connection interface?
what happens if connection is not closed?