Optimizing Temporal Queries
Having a SQL Server solution for a problem does
not mean the job is done. Of course, the next immediate issue is the
performance. Temporal queries that involve intervals are typically very IO and
CPU intensive. For example, a test for overlapping intervals was solved with
inefficient queries for years. However, a handful of solutions with fast
queries was developed lately. This high-level technical session introduces five
different methods to get efficient queries that search for overlapping intervals.
Of course, these solutions can be implemented on other temporal problems as
well. Actually, the test for overlapping intervals is one of the most complex
Dejan Sarka, MCT and
SQL Server MVP, is an independent trainer and consultant that focuses on
development of database & business intelligence applications. Besides projects, he spends about half of the
time on training and mentoring. He is the founder of the Slovenian SQL Server
and .NET Users Group. Dejan Sarka is the main author or coauthor of twelve
books about databases and SQL Server. Dejan Sarka also developed many courses
and seminars for Microsoft, SolidQ and Pluralsight.
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