Apply powerful window functions in T-SQL€"and increase the performance and speed of your queries
Optimize your queries€"and obtain simple and elegant solutions to a variety of problems€"using window functions in Transact-SQL. Led by T-SQL expert Itzik Ben-Gan, you€ll learn how to apply calculations against sets of rows in a flexible, clear, and efficient manner. Ideal whether you€re a database administrator or developer, this practical guide demonstrates ways to use more than a dozen T-SQL querying solutions to address common business tasks.
Discover how to:
- Go beyond traditional query approaches to express set calculations more efficiently
- Delve into ordered set functions such as rank, distribution, and offset
- Implement hypothetical set and inverse distribution functions in standard SQL
- Use strategies for improving sequencing, paging, filtering, and pivoting
- Increase query speed using partitioning, ordering, and coverage indexing
- Apply new optimization iterators such as Window Spool
- Handle common issues such as running totals, intervals, medians, and gaps
