Overview

Introduction

The Implement Appropriate Indexing Strategy on Fact Tables module provides you with the instructions and devices to develop hands on skills in the following topics:

  • Implementing clustered index on fact tables
  • Implementing non-clustered index on fact tables

Exercise 1 - Implementing Clustered Index on Fact Table

You can use indexes in tables to speed up the performance of queries. Indexing organizes database data pages into a hierarchical structure. Clustered index is a type of index that reorganizes the way records in the table are physically stored. A table can have only one clustered index. When a primary key is created on a table, a clustered index is created on the table by default.

In this exercise, you will learn how to create clustered index on fact tables using SQL Server Management Studio.

Exercise 2 - Implementing Non-Clustered Index

A non-clustered index is a special type of index that does not alter the physical order of the rows stored in a table. The leaf node of a non-clustered index contains a pointer to the table data. You generally create non-clustered index to improve the performance of frequently executed queries that are not covered by the clustered index.

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