SQL MCM

HOW TO: Find When SQL Server Wait Stats Were Last Cleared

HOW TO: Find When SQL Server Wait Stats Were Last Cleared

For years I have found myself often needing these three pieces of information with regards to SQL Server: When was the last time the server was restarted? When was the last time the SQL instance was restarted? When was the last time the SQL Server wait stats were cleared? If the server itself is restarted, then the answer(…)

SQL 2014 Cardinality Estimator: Why You Should Care – Part 2

SQL 2014 Cardinality Estimator: Why You Should Care – Part 2

In the previous post I talked about how query optimization works, the role the Cardinality Estimator (CE) plays, and why you should care. Today I am going to break down some of the details about the differences between the old and new CE, as well as show some examples and scenarios. What’s New in the SQL 2014(…)

SQL 2014 Cardinality Estimator: Why You Should Care

SQL 2014 Cardinality Estimator: Why You Should Care

This is the first of two posts on the new Cardinality Estimator in SQL Server 2014.  SQL Server 2014 comes with a lot of shiny things. Hekaton (or as Microsoft Marketing likes to call it, In-Memory OLTP), updateable Columnstore indexes, and buffer pool extensions are some of the more common enhancements. All of those new(…)

Estimating Hekaton Max Server Memory Requirements in SQL Server 2014

Estimating Hekaton Max Server Memory Requirements in SQL Server 2014

SQL Server 2014 has a lot of shiny new features. One of the brightest is In-Memory OLTP Hekaton, something I have been optimistic about (get the pun?) ever since I saw it at the PASS Summit in 2012. These days there is no shortage of information available to day regarding how Hekaton is full of(…)

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