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JDBC Connection

Pol Appan
Ranch Hand

Joined: Aug 26, 2004
Posts: 144
I have a Java Stored Procedure which I deploy to Oracle 9i database.

In one of the method I am performing the following operations:
Quering a table and storing the values in varibales, befrore inserting I am truncating the table and then inserting the values into the table.

Is there any way I can optimise and improve the perfomance?

Pasted below is my code:


try {
Connection con;
con = DriverManager.getConnection("jdbc racle:thin:@localhost:1580 rod","portal","123");
Statement stmt = con.createStatement();
String qry = "select num,card_number,ISSUE_st_DT st_dt,ISSUE_exp_DT exp_dt,recharge_balance from table@LM.SF.COM";
System.out.println("select query "+qry);
ResultSet rs1 = stmt.executeQuery(qry);

qry3 = "truncate table card_det";
ps1 = con.prepareStatement(qry3);

while ({
empno = rs1.getString("card_num");
card_no = rs1.getLong("card_number");
issue_st_dt = rs1.getDate("st_dt").toString();
issue_exp_dt = rs1.getDate("exp_dt").toString();
balance = rs1.getDouble("recharge_balance");
qry2 = "insert into card_det(empno,CARD_NUMBER,ISSUE_DT,EXP_DT,BALANCE)values('"+empno+"','"+card_no+"',to_date('"+issue_st_dt+"','YYYY-MM-DD'),to_date('"+issue_exp_dt+"','YYYY-MM-DD'),'"+balance+"')";
// v1.addElement(rs1.getObject("card_num"));
// non_kwt = rs1.getString("FEMALE");
System.out.println("value of st_dt "+issue_st_dt);
System.out.println("insert qry "+qry2);
ps = con.prepareStatement(qry2);

// String qry2 = "insert into card_det(empno)values('"+v1+"')";
catch(Exception e)

Never take anything for granted because you never know when you will lose it
Ernest Friedman-Hill
author and iconoclast

Joined: Jul 08, 2003
Posts: 24195

Off to our "JDBC" forum.

[Jess in Action][AskingGoodQuestions]
I agree. Here's the link:
subject: JDBC Connection
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