Query Store On Read-Only Databases

Kendra Little wants to know if Query Store works on read-only databases:

At least for now, Query Store can only record query performance in databases that are read-write. Once you go read-only you can review the performance of past queries, but you can’t track the performance of anyone who queried the database after the point it went read-only.

At least for now. Query Store is such an awesome feature that perhaps this will change in the future. (I don’t have any inside info, only optimism.)

That’s a little bit of a letdown, but makes perfect sense.

Related Posts

When A Database In An AG Has Different Query Store Settings

Erin Stellato explains how we can have a discrepancy in Query Store settings between the primary and a secondary in an Availability Group: Last week there was a question on #sqlhelp on Twitter about the status of Query Store for a database in an Availability Group. I’ve written about Query Store and Availability Groups before so if […]

Read More

How Query Store Stores Date Data

Erin Stellato shows us a few nuances to the way that Query Store handles dates internally: Query Store retains query performance data at the plan level.  This data is then broken out into intervals of time, determined by the INTERVAL_LENGTH_MINUTES setting.  The time intervals are found in the sys.query_store_runtime_stats_interval system view, and the start_time and end_time […]

Read More

Categories

June 2016
MTWTFSS
« May Jul »
 12345
6789101112
13141516171819
20212223242526
27282930