Oracle DataPump Enhancements Full Transportable Export and Import of Data In Oracle 12c you now have the possibility to create full transportable exports and imports. A full transportable export contains all objects and data needed to create a copy of the database. To create a fully transportable export of your database you need to specify [...]
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Online Partition operations Table Partitions and subpartitions can now be moved online. [crayon-5447caf7d0323514534927/] Compression options can also be added during an online partition move. [crayon-5447caf7d034e673459253/] Reference Partitioning Enhancements Truncate or Exchange Partition with Cascade option With Oracle 12c, it is now possible to use the CASCADE option to cascade operations to a child-referenced table when [...]
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Table Enhancements Oracle 12c offers you to create invisible columns, these columns are not visible until you explicitly mention their names in the SQL statement. This functionnality allows developpers to make change to the database without conflicting with the existing application. To create an invisible column: [crayon-544665ad911af900442543/] You can’t create invisible columns on : External [...]
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ADR enhancements In oracle 12c the Automatic Diagnostic Repository contains a new log directories with 2 subdirectories : DDL Debug The DDL log When you active the DDL logging in Oracle 12c using enable_ddl_logging=true, Oracle writes all DDL operations into the specific DDL log instead of writting it to the alert log. To enable DDL logging [...]
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Emergency Monitoring Emergency monitoring is meant for extreme circumstances where it’s impossible for you to connect to the database because the database is hung. Emergency monitoring allows you to connect to the database in diagnostic mode and run a lightweight analysis to see what’s happening. You can access real-time performance data from ASH and access [...]
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What’s new ? Oracle 12c introduces a major update called Adaptive Query Optimization which is based on : Adaptive execution plans Adaptive Statistics These two functionnalities are used to improve execution plans by using dynamic statistics gathered during the first part of the SQL execution. This allow to create more efficient plans that those using [...]
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What is Real Time Database Operation Monitoring ? Real Time Database Operation Monitoring will help you track the progress of a set of sql statements and let you create a report. Real Time Database Operation Monitoring acts as a superset of all monitoring components like : ASH, DBMS_MONITOR … You can generate Active Reports which are [...]
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RMAN Enhancements New Privilege A new SYSBACKUP privilege is created in Oracle 12c, it allows the grantee to perform BACKUP and RECOVERY operations with RMAN SQL in RMAN You can now use SQL Statements in RMAN like you would do in SQL*PLUS : BEFORE : RMAN> SQL “alter system switch logfile”; NOW : RMAN> alter system switch logfile; [...]
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User Task-Specific Administrative Privileges To continue with the objective of separating duties and the least privileges, Oracle 12c introduce new administratives privileges all destinated to accomplish specific duties: SYSBACKUP : Used for RMAN operations like BACKUP, RESTORE, RECOVER SYSDG : Used to administer DATAGUARD, In 12c when you use DGMGRL commandline interface your are automatically [...]
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Unified Audit Data Trail Unifed Auditing offers a consolidated approach, all the audit data is consolidated in a single place. Unified Auditing consolidate audit records for the following sources : Standard Auditing Fine-grained auditing (DBMS_FGA) RAC security auditing RMAN auditing Database Vault auditing Oracle Label Security auditing Oracle Data Mining Oracle Data Pump Oracle SQL*Loader In [...]
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