MYSQL Query Real Time

Hi. I'm new to java so hang in there with me. What I need to be able to do is have a Java app that queries a very small amount of mysql data every 1 or 2 seconds. I need that data refreshed real time. I have created the project in Netbeans and it queries the mysql data correctly. How do I get it to update every second or two? thank you for your help!
Ryan
Edited by: crusherdestroyer on Jan 11, 2010 3:44 PM

Use a Timer/TimerTask?

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SUCCESSKind regards
Uwe Hesse
http://uhesse.wordpress.com

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| Variable_name | Value |
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| slave_type_conversions | |
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SQL Develper Info:
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Edited by: user501466 on 19-Mar-2011 03:21

Hi Dermot,
Some clarification.
I have tried these 3 drivers below with the following results:
5.0.4 First Query succeeds, Second gives error "Unknown prepared statement handler (131072) given to mysqld_stmt_execute". At this point I can exit SQL Developer. If I run it a third time then the query does not complete and any attempt to exit SQL Developer results in "Connection is currently busy, try again?" and ultimately I have to kill it.
5.0.8 First Query succeeds, Second Query fails with Query execution was interrupted. Subsequent queries give the same result.
5.1.15 Same as 5.0.8
I tried your suggestion, removed the driver, restarted, installed the 5.0.4 driver and restated and ran the test,
(I added a drop table so I could run it repeatedly) and it works repeatedly if I choose "Run as script F5".
DROP TABLE table1;
CREATE TABLE table1(col1 int);
INSERT INTO Table1 values(1);
SELECT * FROM table1;
SELECT * FROM table1;
But If I execute the query "select * from table1" using "Run Statement Ctrl-Enter" twice then I get problem behaviour as described above.
I looked in the logfile for SQLDeveloper but it was empty.
I also tried creating a new database as root and connecting as root (same result)
I also tried the NightlyBuild of 5.1 and 6.0 but gave the same result as 5.1.5.
I have two other tools for accessing MySql: Toad and MySql workbench, both of which work but I've used SQL Developer with Oracle for some years and would like to keep using it.
I just tried connecting to a remote MySQL database and that seems to work without problems.
I'm thinking it may be related to some incompatibility between SQLDeveloper and the MySQL installed locally.
I'll try another version....
Ok I installed a 32 bit version of MySql 5.5.10. I thought things were working but now I still get the problem but it is much more intermittent.
Now I can get it by modifying the query ie.
select * from table1; (works repeatedly untill followed by a change to the query)
select * from table1 order by col1; (fails)
Another case
select * from table1 order by col1; (works repeatedly)
select * from table1 order by col1 asc; (fails first time)
very weird...
Edited by: user501466 on 26-Mar-2011 06:19

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