SQL Server Indexes to Improve Query Performance
In this article, we look at how to design SQL Server indexes and why the way an index is created makes a difference in query performance.
2022-11-07
In this article, we look at how to design SQL Server indexes and why the way an index is created makes a difference in query performance.
2022-11-07
2022-01-26
510 reads
2021-08-09
525 reads
In the last year I’ve published articles on indexes to include Indexes: When Column Selectivity Is Not Always A Requirement – SQLServerCentral and Query Optimizer Suggests Wrong Index and Query Plan -- Why? – SQLServerCentral. This article is a continuation of just how the optimizer interacts with the index wizard. We’ve all heard and read […]
2021-07-07
2,598 reads
The script returns all the fragmented indexes on all databases on the instance you run it. Can be run on multiple instances in the same time using central management capability.
2021-07-12 (first published: 2021-07-06)
1,759 reads
Introduction Every DML transaction reads the data before it makes any changes. Not only during a SELECT query, but when you run any DML statement, insert, update, or delete, SQL Server first fetches a bunch of pages into the buffer pool locating the desired rows and changes them while synchronously writing to the transaction log […]
2021-05-10
4,630 reads
While preparing for my SQL Saturday Salt Lake City presentation, Climbing the B-Tree, I ran into one of the “word of mouth” facts that the first column of an index should be highly selective, i.e., it should only point to one or a few rows. This is not always the case and I’ll show you […]
2023-01-02 (first published: 2020-09-16)
4,828 reads
2020-07-10
568 reads
Today Kendra talks about two of the online options used when working with indexes.
2020-01-14
205 reads
2019-12-16
834 reads
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