Some Prilim questions

[karthikn]

Hi

Spec:
O/s :  Unix HP 11i
Tomcat : 6.0.18
J2sdk : 1.6
DB : Oracle 10g

Question

1)       Which is faster JNDI Based Connection pool / ordinary JDBC based 
connection / close ?

2)       In JNDI / context based  Connection pool  for the code given below

       InitialContext ic = new InitialContext();
       DataSource ODS 
=(javax.sql.DataSource)ic.lookup("java:comp/env/jdbc/MYSCEMA");
       Connection conn = ODS.getConnection()

       // Insert /Update /Delete/...

       conn.close() --> What does this code do ? (return connection to pool or 
close the connection )

    Googled /yahooed but non correct answers ....

Please advice
Karthik