Applies to: SQL Server (all supported versions) Azure SQL Database
UPDATE STATISTICS against all user-defined and internal tables in the current database.
sp_updatestats [ [ @resample = ] 'resample']
Return Code Values
0 (success) or 1 (failure)
[ @resample = ] 'resample'
Specifies that sp_updatestats will use the RESAMPLE option of the UPDATE STATISTICS statement. If 'resample' is not specified, sp_updatestats updates statistics by using the default sampling. resample is varchar(8) with a default value of NO.
UPDATE STATISTICS, by specifying the
ALL keyword, on all user-defined and internal tables in the database. sp_updatestats displays messages that indicate its progress. When the update is completed, it reports that statistics have been updated for all tables.
sp_updatestats updates statistics on disabled nonclustered indexes and does not update statistics on disabled clustered indexes.
For disk-based tables, sp_updatestats updates statistics based on the modification_counter information in the sys.dm_db_stats_properties catalog view, updating statistics where at least one row has been modified. Statistics on memory-optimized tables are always updated when executing sp_updatestats. Therefore do not execute sp_updatestats more than necessary.
sp_updatestats can trigger a recompile of stored procedures or other compiled code. However, sp_updatestats might not cause a recompile, if only one query plan is possible for the tables referenced and the indexes on them. A recompilation would be unnecessary in these cases even if statistics are updated.
For databases with a compatibility level below 90, executing sp_updatestats does not preserve the latest NORECOMPUTE setting for specific statistics. For databases with a compatibility level of 90 or higher, sp_updatestats does preserve the latest NORECOMPUTE option for specific statistics. For more information about disabling and re-enabling statistics updates, see Statistics.
To run sp_updatestats, the user must be the owner of the database (the
dbo, not just member of the role
db_owner) or to be member of the sysadmin fixed server role.
The following example updates the statistics for tables in the AdventureWorks2012 database.
USE AdventureWorks2012; GO EXEC sp_updatestats;
Automatic index and statistics management
Leverage solutions such as Adaptive Index Defrag to automatically manage index defragmentation and statistics updates for one or more databases. This procedure automatically chooses whether to rebuild or reorganize an index according to its fragmentation level, amongst other parameters, and update statistics with a linear threshold.
ALTER DATABASE SET Options (Transact-SQL)
CREATE STATISTICS (Transact-SQL)
DBCC SHOW_STATISTICS (Transact-SQL)
DROP STATISTICS (Transact-SQL)
UPDATE STATISTICS (Transact-SQL)
System Stored Procedures