Is it that we cannot run sql statement in main??

Hi all,
sorry to bother again. But i have some problems. I had a program that have main method and some other small methods that contains some sql statement that call the db to retrieve info. But it keep on prompting me error: "Connection refused. Check that the hostname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking.".
My program reside in the server but i really don't why i cannot run it. Is it because the main program cannot run with database and sql statement.
Please reply asap. Thank You!

This sound very much that your postgress isn't running (or if it isn't it wasn't started with the -i flag)
Are you sure postgres (=postmaster) is running
Thomas

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Message was edited by:
Funkymonkey2

The process code that I have is as follows:
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Thank you for the confirmation that this would work. I've also tried the Insert query like this:
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Is it that we cannot run sql statement in main??

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