SQL Monitor Custom Metric: Possible Duplicate Indexes

When a table has multiple indexes defined on the same columns, it produces duplicate indexes that waste space and have a negative impact on performance. This metric measures the number of possible duplicate indexes per database above a set threshold. You can then consider dropping the indexes and reverse the change.

Primary key vs Unique key

Retrieve instance-wide index level fill factor information

This script retrieves all fill factor information for all indexes (clustered and non) when it is not set to 0 or 100

Index rename to standards

Rename indexes according to pattern:
IX_<TableName>_<Col1>_<Col2>..
or
AK_<TableName>_<Col1>_<Col2>..

Unique Indexes Are Code; Non-Unique Indexes Are Data

Unique indexes are the database developer's responsibility. Non-unique indexes can be more easily maintained directly on the production database by an automated process.

Finding and Eliminating Duplicate or Overlapping Indexes

Duplicate & Overlapping Indexes can be a drag on write speed and disk resources. How do we find and eliminate them quickly and effectively?

Reindex Procedure with a Twist (or two) the SQL

A 2012 update to "Reindex Procedure with a Twist (or two)":

Index Utilization Trending

An important part of regular database maintenance is to monitor index usage and make adjustments as needed. How can we monitor, store, and trend this data effectively over time?

Reorganize indexes

Generate script to reorganize indexes in a database

14 SQL Server Indexing Questions You Were Too Shy To Ask

The first thing you need to understand about SQL Server is indexes, but somehow many of the basic questions don't often get asked or answered much on forums. Rob Sheldon answers some of these questions about SQL Server Indexes and indexing.