Ask the Expert

How to use V$SESSION in Oracle to see distributed queries

What is the query to find the number of connections or users connected to a particular database link?

    Requires Free Membership to View

Distributed queries are not like normal sessions. A user querying across a database link does not typically stay connected for a very long time. The connection only lasts as long as the query. So you'd have to catch the "connection" during the query run-time window. To see the session, you would have to query V$SESSION. This view does not show which sessions are using a database link. But you can query the MACHINE column of V$SESSION to see which users are currently querying from your other database servers.

This was first published in July 2009

Join the conversationComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.