What is an Online Rebuilding of Indexes in SQL Server ?

Online operation means when online operations are happening the database is in normal operational condition, the processes which are participating in online operations does not require exclusive access to a database.

In the case of Online Indexing Operations, when Index operations (create, rebuild, dropping) are occurring they do not require exclusive access to a database, they do not lock any database tables. This is a major important upgrade in SQL Server from previous versions.



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