22-25 April 2026 
SQLBits 2012
What's Buried in the Plan Cache?
In this session, we'll examine the query plan cache to see what plans are saved, what plans are reused, when plans are recreated, methods for observing the contents of the plan cache, and finally,
methods for manipulating plan reuse and recreation.
Creating a query plan can be a time consuming and expensive process.
To avoid repeating these potentially costly steps unnecessarily, SQL Server stores its query plans, in the plan cache where they can be reused as needed.
In this session, we’ll look at how the plan cache is
organized, what plans are saved, when plans are reused and when they are
recreated, methods for observing the contents of the plan cache, and finally,
methods for manipulating plan reuse and recreation.
Speakers
Christina E. Leo's previous sessions
Cognitive Services, Bots, and Search: Dev Tools for AI
In this session, we’ll look at the different options within the Cognitive Services suite, show you how to connect to the APIs using Python code, walk through a live bot demo, and build an Azure Cognitive Search index. You should leave this session feeling like you’ve had a jump start to further your AI developer skill set.
Building Your T-SQL Tool Kit: Window Function Fundamentals
Sets are king when it comes to SQL Server, but sometimes you need to see data row by row. Window
Functions help you get the best of both worlds. Learn when and where these functions can help you get what you need without compromising performance.
Why APPLY?
Most T-SQL developers know that the APPLY operator can be used to invoke a table valued function. But do you know the other ways APPLY can be used? Come learn five additional use cases and leave with a few new tricks up your T-SQL sleeves.
What's Buried in the Plan Cache?
In this session, we'll examine the query plan cache to see what plans are saved, what plans are reused, when plans are recreated, methods for observing the contents of the plan cache, and finally,
methods for manipulating plan reuse and recreation.
Working with Server Side Traces
Learn to create and customise TSQL scripts for capturing SQL Profiler data in a server side trace. Examine methods for stopping, starting and storing these traces, and finally look at free tools available for analysing the captured data.