Re: pooled prepared statements

Thomas Finneid wrote:

When a PreparedStatment is created by a pooled connection, as far as I understand if, that creation happens on the server side, and a reference, of sorts, is returned to the client jdbc.

Is that prepared statement shared among the connections or is it only available to that single connection? and more importantly, can many connections use that prepared statement concurrently?

If it is shared, then it must be usable by concurrent connections, otherwise it will be difficult for the client to know if the statement is occupied or not. So I just want to confirm that I understand how the JDBC driver works.

Once the query usage count exceeds the prepareThreshold parameter, then the driver does create a "prepare statement object" on the server. This is only valid for the time the PreparedStatement is open and only on that connection. So to answer your question, they cannot be shared by multiple connections.

You can create your own using the PREPARE and EXECUTE sql commands so long as you track them across different connections...

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