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sys.dm_db_index_operational_stats not giving proper statistics in sql server?

NOLOCK hint changes order of records returnedWhy does SQL Server refuse to update these statistics with anything but fullscan?Why SQL Server uses Non-Clustered but not Clustered Index?Index rebuild - Not reducing fragmentationOnline index operation blocking insertsImplicit conversion does not affect performanceWhy does adding a computed column prevent predicate pushdown?Clustered Index Maintenance vs. Nonclustered Index MaintenanceImproving statistics on a large “WHERE IN” SQL Server queryTo cluster or not to cluster? That is the question!

0

While working on Index Analysis in SQL Server 2017,
I observed that sys.dm_db_index_operational_stats not showing index is getting utilized(column name range_scan_count, however when i checked same in DMV sys.dm_db_index_usage_stats showing that non-clustered index is getting utilized under column user_seeks (For specific table on which i am trying to create non-clustered index to gain the performance of query).
Not able to understand why there is difference ? Can somebody please help me to understand why it is so ?

Note :-

1. There is no any system/SQL Server service restarted during this
   activity, as well as database is not attached/detached.


2. Creating Non-clustered index on table which is getting utilized in one of the function, that table is not getting utilized in
   anywhere in calling procedure (Main Procedure which is calling that
   function, having underline table).

sql-server-2012 sql-server-2014 sql-server-2017

share

asked 8 mins ago

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1642210

add a comment | 

0

While working on Index Analysis in SQL Server 2017,
I observed that sys.dm_db_index_operational_stats not showing index is getting utilized(column name range_scan_count, however when i checked same in DMV sys.dm_db_index_usage_stats showing that non-clustered index is getting utilized under column user_seeks (For specific table on which i am trying to create non-clustered index to gain the performance of query).
Not able to understand why there is difference ? Can somebody please help me to understand why it is so ?

Note :-

1. There is no any system/SQL Server service restarted during this
   activity, as well as database is not attached/detached.


2. Creating Non-clustered index on table which is getting utilized in one of the function, that table is not getting utilized in
   anywhere in calling procedure (Main Procedure which is calling that
   function, having underline table).

sql-server-2012 sql-server-2014 sql-server-2017

share

asked 8 mins ago

Vikrant MoreVikrant More

1642210

add a comment | 

While working on Index Analysis in SQL Server 2017,
I observed that sys.dm_db_index_operational_stats not showing index is getting utilized(column name range_scan_count, however when i checked same in DMV sys.dm_db_index_usage_stats showing that non-clustered index is getting utilized under column user_seeks (For specific table on which i am trying to create non-clustered index to gain the performance of query).
Not able to understand why there is difference ? Can somebody please help me to understand why it is so ?

Note :-

1. There is no any system/SQL Server service restarted during this
   activity, as well as database is not attached/detached.


2. Creating Non-clustered index on table which is getting utilized in one of the function, that table is not getting utilized in
   anywhere in calling procedure (Main Procedure which is calling that
   function, having underline table).

sql-server-2012 sql-server-2014 sql-server-2017

share

asked 8 mins ago

Vikrant MoreVikrant More

1642210

share

asked 8 mins ago

Vikrant MoreVikrant More

1642210

share

asked 8 mins ago

Vikrant MoreVikrant More

1642210

asked 8 mins ago

Vikrant MoreVikrant More

1642210

asked 8 mins ago

Vikrant MoreVikrant More

1642210