Indexing

“Included columns” for non-clustered indexes explained

  • Article

Microsoft SQL Server has the feature to use “Included columns” for the creation of non-clustered indexes. This feature and its benefits and disadvantages will be explained in the following article. Included columns can be used to create a covering indexes without including all the data into the key columns. This covering index has the advantage […]

4.17 (6)

2019-09-17

5,214 reads

How much will it cost or save to rebuild that index? (SQL Oolie)

  • Article

What's the true and permanent cost of lowering the Fill Factor of an index in SQL Server? It's a lot more than many people think. 9 year SQL Server MVP veteran, Jeff Moden, demonstrates how to calculate the extra space that will be used by lowering the Fill Factor and saved by increasing it.

4.27 (11)

2019-09-03

4,200 reads

A Self-Tuning Fill Factor Technique for SQL Server – Part 2

  • Article

Introduction Fill Factor is a parameter most of us have ignored because there is no definitive way to calculate what the correct value should be. Part 1 of this series describes a new technique to dynamically determine index fill factors for all indexes within a database. Part 2 covers an analysis of the data collection […]

5 (2)

2019-08-27

2,648 reads

Some T-SQL INSERTs DO Follow the Fill Factor! (SQL Oolie)

  • Article

With origins from the world of “Submarine ‘Dolphin’ Qualification” questions, an “Oolie” is a difficult question to answer, or the knowledge or fact needed to answer such a question, that may or may not pertain to one's duties but tests one's knowledge of a system or process to the limit. Introduction Contrary to what many […]

5 (9)

2019-08-08

4,633 reads

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