The FILESTREAM feature is very effective because it allows storing BLOB files in the NT file system and maintains the transactional consistency. This approach gives huge performance improvement, but it does not ensure the transactional consistency moreover file management was difficult too. Instead of storing the entire file in the SQL table, store the physical location of the unstructured file in SQL Table.This approach is effective to maintain transactional consistency and reduces the file management complexity, but when the client application reads data from the SQL table, it uses SQL memory which leads to poor performance. Unstructured files can be stored in the VARBINARY or IMAGE column of a SQL Server table.Before FILESTREAM was introduced, the following approaches were used to store the data in SQL server: The purpose was to store and manage unstructured files more effectively. FILESTREAM has been introduced by Microsoft in 2008.
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