Turn On Snapshot Isolation to Use Version Store

The following statement turns snapshot isolation on: [cc lang=”sql”] ALTER DATABASE sqlserverplanet SET ALLOW_SNAPSHOT_ISOLATION ON GO ALTER DATABASE sqlserverplanet SET READ_COMMITTED_SNAPSHOT ON [/cc] Once snapshot isolation is on, rows that have been modified will fill the version store. To find the amount of space the version store is using, execute: [cc lang=”sql”] SELECT version_store_in_kb = version_store_reserved_page_count*8192/1024 FROM sys.dm_db_file_space_usage [/cc]

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