Oracle Database 11 g - Online Public Access Catalog

xxviii■INTRODUCTION• The flashback archive feature lets you track data stored in any Oracle table, for any length oftime you want, while providing automatic historical data management.• SQL Repair Advisor provides alternative workarounds in the form of SQL patches to getaround failed SQL statements without having to change the SQL statements themselves.• Data Recovery Advisor lets you effortlessly recover from data failures by getting repairadvice and recommendations that you can implement.• Virtual private catalogs provide greater security by limiting users to only a subset of thebase recovery catalog.• There is improved block media recovery performance with the help of flashback logs.• You can merge recovery catalogs.• You can perform parallel backups of datafiles using the new section size parameterduring backups.• Online patching enhancements make it easy to apply patches with no downtime.Advanced CompressionOracle Database 11g provides new compression capabilities, as summarized here:• The new release lets you compress OLTP data that’s subject to normal data manipulationlanguage (DML) activities.• You can compress export data during a Data Pump operation, instead of just compressingthe metadata.As you can see, there’s a quite bit of exciting new features in Oracle Database 11g. So, withoutmuch ado, let’s dive into a discussion of the new features!