Oracle SecureFiles
Oracle SecureFiles were introduced in Oracle Database 11g Release 2 to enable optimized storage of large objects and enhanced performance. SecureFiles are re-engineered LOB
storage architecture that is designed to leverage the joint capabilities of an Oracle Database and a file system. Oracle SecureFiles greatly benefitted from the file system-like features such as deduplication, compression, and encryption. In addition, the SecureFiles data works with trusted database features such as flashback, fine-grained auditing, Real Application Clusters, Automatic Storage Management, and Information Lifecycle Management. The optimization features in SecureFiles are deduplication, compression, and encryption.
With the introduction of Oracle Securefiles, the older LOB
, that is, all LOBs until Oracle Database 11g Release 1, will be known as BasicFiles.
Deduplication and compression
Let us first understand what optimizes the SecureFiles storage on the disk. Oracle SecureFiles gives the...