jsp page connectivity with oracle

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jsp page connectivity with oracle

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September 3, 2009 at 2:50 PM

Hi Friend,

1)Import the packages:

<%@ page import="java.sql.*"%>

2)Load the oracle driver:

Class.forName("oracle.jdbc.driver.OracleDriver");

3) Connect to database:

a) If you are using oracle oci driver,you have to use:
Connection connection= DriverManager.getConnection("jdbc:oracle:oci8:
@oracle.world", "root", "root");

where oracle.world is the TNS NAMES entry and root is the username and password.

b) If you are using oracle thin driver,you have to use:

Connection connection= DriverManager.getConnection ("jdbc:oracle:thin:@localhost:3306:roseindia",
"root", "root");

where localhost is the host,3306 is the port, roseindia is the database and root is the username and password.

4)Querying the database:

a)create statement:

Statement st = connection.createStatement();

b)write query and execute the query:

ResultSet rs = st.executeQuery("SELECT * from data");

5) Close the statement,resultset and connection:

rs.close();
st.close();
connection.close();

Example:
<%@ page import="java.sql.*"%>
<%
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection connection = DriverManager.getConnection("jdbc:oracle:thin: @localhost:3306:Oracle", "rose", "rose");
Statement st=connection.createStatement();
ResultSet rs=st.executeQuery("Select * from data");
while(rs.next(){
String name=rs.getString("name");
String add=rs.getString("address");
out.println(name+" "+add);
}
rs.slose();
st.close();
connection.close();
}
catch (Exception ex) {}
%>

Thanks

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