Missing Indexes

This metric category leverages MSSQL Dynamic Management Views to get recommended indexes.

Default Collection Interval — Every 60 minutes

Table 2-54 Missing Indexes Metrics

Metric Description

Database Name

Name of the database.

Database ID

Database identifier.

Fully Qualified Table Name

Available space for data file

Table ID

Table identifier.

Equality Columns

Columns that are queried when this index would be used.

Inequality Columns

Columns that are queried when this index would be used.

Included Columns

Columns often included in the result set when this index would be used.

Unique Compiles

Number of unique compiles.

Last User Seek Time

Time of the last user seek.

Last User Scan Time

Time of the last user scan.

Last System Seek Time

Time of the last system seek.

Last System Scan Time

Time of the last system scan.

Estimated Performance Benefit

Unitless measure of estimated benefit from this index. Useful only to compare to other recommended indexes.

Generated Index Name

Name generated based on table name and columns involved and included.

User Seeks per second

User Seeks per second

User Scans per second

User Scans per second

System Seeks per second

System Seeks per second

System Scans per second

System Scans per second