Artikelomschrijving

Apply powerful window functions in T-SQLùand increase the performance and speed of your queries Optimize your queriesùand obtain simple and elegant solutions to a variety of problemsùusing window functions in Transact-SQL. Led by T-SQL expert Itzik Ben-Gan, you all learn how to apply calculations against sets of rows in a flexible, clear, and efficient manner. Ideal whether you are 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