execution « Operation « Java Database Q&A

1. JDBC + Java Query execution error    stackoverflow.com

I'm getting this exception

java.sql.SQLException: Unknown column 'auyu' in 'where clause'
My Query and method in my database facade class.
db.save("delete from users where name = auyu");

public static void save(String sql) throws Exception {

2. Killing a thread waiting for db query execution    coderanch.com

Hope some ones can shred a light to solve my thread problem. I want to kill a thread waiting for long query execution. I had used a monitor thread to close the preparedStatement of the query thread, but it did not work. Agressively, I tried to stop the query thread, but it also did not work. In this case, the query ...

3. Measuring query execution time    coderanch.com

4. Break query execution into multiple steps to reduce the response time    coderanch.com

Does your SQL query sort the records on one of the fields? If so, you could add something to your WHERE clause that narrows it down to a certain range. Something like: WHERE sortField >= 0 AND sortField <= 100 I chose the numbers 0 and 100 as an example. Most likely this would be a "blank" that can be filled ...

5. regarding query execution    coderanch.com

6. Query Execution Time.    coderanch.com

7. Long Query execution time    coderanch.com

Hi, I am developing a search page which searches oracle DB where i have a oracle select query which has 4 unions. Some queries takes 25 secs to execute some queries. When the user clicks search button i get "Internal server error (page cannot be displayed)" some times. instead i need to show the users some message. i tried all possible ...

8. double execution to insert into database ?!? help me someone    forums.oracle.com

import java.sql.*; public class Account{ DBC dbc; public Account(){ dbc = new DBC(); dbc.setUp("database"); } public void setUserId(String userId){ int status = dbc.updateRequest("INSERT INTO Account VALUES('" + userId + "','','')"); dbc.updateRequest("INSERT INTO Account VALUES('" + userId + "','','')");<===== i wonder why i need to write an additional updateRequest then i am able to insert a new record into my database.... its ...