Join Joey D'Antoni for an in-depth discussion in this video Views and vested views, part of SQL Server Performance for Developers.
- [Instructor] Views and nested views.…This topic always brings me back to this one story I have…from working with a particular customer…who had a business intelligence system…that generated a number of reports…on things like sales, and sales activity, and CRM data…for all of their customers,…and they had kind of a bunch of developers…that had come in over time…and nobody had really stayed for a long time,…and they had built on top of code…that other folks had built,…and we were tasked with helping them…trying to get the performance of the system under control,…and one of the things we ran into,…and probably this customer is what inspired this slide deck,…was a massive case of nested views,…and if you're not familiar with nested views,…this is where a view references a view.…
This is not inherently a bad thing,…but in reality…it can make troubleshooting performance problems…incredibly problematic.…I came upon a view that was nested eight times.…So we had views that were calling each other eight deep,…and I eventually found where their performance problem was…
- Query execution
- How to read an execution plan
- What not to do with SQL Server
- Why cursors are bad
- Why scalar UDFs are expensive
- Datatypes and design
- What is a columnstore index?
- Transaction isolation
Skill Level Intermediate
1. Query Execution
2. What Not to Do with SQL Server
3. Datatypes and Design
4. Temporary Objects
7. Isolation Levels
Next steps2m 15s
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.