Events
Apr 8, 3 PM - May 28, 7 AM
Sharpen your AI skills and enter the sweepstakes to win a free Certification exam
Register now!Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Applies to: 
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Contains statistics collected since the last database restart.
For more information, see In-Memory OLTP (In-Memory Optimization) and Guidelines for Using Indexes on Memory-Optimized Tables.
| Column name | Data type | Description |
|---|---|---|
| object_id | bigint | ID of the object to which this index belongs. |
| xtp_object_id | bigint | Internal ID corresponding to the current version of the object. Note: Applies to SQL Server 2016 (13.x). |
| index_id | bigint | ID of the index. The index_id is unique only within the object. |
| scans_started | bigint | Number of In-Memory OLTP index scans performed. Every select, insert, update, or delete requires an index scan. |
| scans_retries | bigint | Number of index scans that needed to be retried, |
| rows_returned | bigint | Cumulative number of rows returned since the table was created or the start of SQL Server. |
| rows_touched | bigint | Cumulative number of rows accessed since the table was created or the start of SQL Server. |
| rows_expiring | bigint | Internal use only. |
| rows_expired | bigint | Internal use only. |
| rows_expired_removed | bigint | Internal use only. |
| phantom_scans_started | bigint | Internal use only. |
| phantom_scans_retries | bigint | Internal use only. |
| phantom_rows_touched | bigint | Internal use only. |
| phantom_expiring_rows_encountered | bigint | Internal use only. |
| phantom_expired_rows_encountered | bigint | Internal use only. |
| phantom_expired_removed_rows_encountered | bigint | Internal use only. |
| phantom_expired_rows_removed | bigint | Internal use only. |
| object_address | varbinary(8) | Internal use only. |
Requires VIEW DATABASE STATE permission on the current database.
Requires VIEW DATABASE PERFORMANCE STATE permission on the database.