Read currently running SQL statement’s bind variable values using V$SQL_MONITOR.BIND_XML in Oracle 11.2

Tanel Poder

2010/10/18

The title pretty much says it. In Oracle 11.2, if you have the Diag+Tuning Pack licenses and the SQL monitoring kicks in for your SQL statement, then instead of the old fashioned ERRORSTACK dump reading you can just query the V$SQL_MONITOR.BIND_XML to find the values and metadata of your SQL statement’s bind variables.

I’ve written an example here:

And a related comment – V$SQL_BIND_CAPTURE is not a reliable way for identifying the current bind variable values in use. Oracle’s bind capture mechanism does not capture every single bind variable into SGA (it would slow down apps which run lots of short statements with bind variables). The bind capture only selectively samples bind values, during the first execution of a new cursor and then every 15 minutes from there (controlled by _cursor_bind_capture_interval parameter), assuming that new executions of that same cursor are still being started (the capture happens only when execution starts, not later during the execution).


NB! Check out my 2018/2019 online training classes: Advanced Oracle SQL Tuning training, Advanced Oracle Troubleshooting training and the new Practical Linux Performance & Application Troubleshooting training!