A connected user on a database unknowingly should not allow a definer's rights procedure owner on that database to perform database operations on a remote database, logging in as that connected user. A much finer degree of data management is possible through this new feature in addition to the SELECT performance enhancements. When the passwords of SYS, SYSDG, and so on, are changed, the password file at the primary database is updated and then the changes are propagated to all standby databases in the configuration. You can now dynamically increase the size of the in-memory area while the database is open, assuming that enough memory is available within the SGA. This feature adds more flexibility to import or recover tables across different schemas, which provides more freedom to users and may also provide a better understanding of table-related indexes, triggers, constraints, and so on, if these object names are already existing under the same schema. This feature adds views to Oracle Database that provide information about what metadata transforms are available for different modes of Oracle Data Pump and for the metadata API. This also provides the ability to protect data that belongs to one PDB from being accessed by users connected to another PDB. Indexes consume a large amount of storage within many databases. Shared GNS provides dynamic name resolution for one cluster, or to advertise resolution for multiple clusters, so that a single GNS instance can perform name resolution for multiple registered clusters. Through these standards-based interfaces, applications using Oracle Spatial and Graph map visualization can make map data in Oracle Database available to other applications through OGC Web Map Services and Map Tile Services. Specifically, this allows the grouping of realms and command rules under a single Oracle Database Vault policy that can be managed as a single unit for enabling, disabling and authorizing. The effect is similar to a loaded system where the database runs the request slightly slower so that the response to the client is delayed. The Direct NFS client now supports Parallel NFS. This enhancement supports the new ALTERNATE syntax of Oracle Data Guard in the broker. There is also a new ROLLBACK procedure for the DBMS_REDEFINITION package that initiates the swapping of the redefined table with the original table, therefore effectively rolling back the redefinition changes and returning the table to its original state. This feature changes some parameter defaults as well as the locations of some files as follows: The default value of parameter LOG_DIRECTORY changes from $ORACLE_HOME to $ORACLE_BASE_HOME. Sharding with Oracle Database 12c Release 2 (12.2) is an architecture for suitable online transaction processing (OLTP) applications where data is horizontally partitioned across multiple discrete Oracle databases, called shards, which share no hardware or software. Partitions and sub-partitions can be individually set to a read-only state. This feature provides enhanced security when interacting with the operating system from a PDB. This enhancement provides an up front check on the available disk space for the auxiliary instance, before RMAN executes table recovery. You can now set up restore points specific for a pluggable database (PDB) to flash back to that restore point without affecting other PDBs in a multitenant container database (CDB). Only a physical standby database can be created when connected to a physical standby database as the target database. The ALLOWED_LOGON_VERSION_SERVER parameter is set by default to require strong verifiers for user logins. The storage space savings associated with sparse files is obvious, but an even more motivating factor is improved performance. This feature provides better alignment of Oracle ACFS metadata when an Oracle Automatic Storage Management disk group is composed of all new advanced format drives emulating 512-byte sectors. Oracle Flex ASM disk groups allow splitting of mirror copies of files in a file set and then new mirror copies are made during a rebalancing operation. Using Transaction Guard, a transaction manager can now return reliable outcome for XA transactions to the user. Users can optionally enable support for SOLRcloud, if desired. The National Language Support (NLS) data files for AL32UTF8 and AL16UTF16 character sets are updated to match version 7.0 of the Unicode Standard character database. This feature introduces the new DBMS_PLSQL_CODE_COVERAGE package that enables you to collect data at the basic block level. Read-only user connections that use a service designed to run in both the primary and physical standby roles are maintained. Using TFA web sourcing, reviewing, and analyzing diagnostic information gathered as part of a TFA collection becomes easier and more efficient, leading to reduced recovery time. Extract Zip file. Now you can easily define modal and non-modal pages, complete with the ability to use standard page processes. A few months ago at Oracle OpenWorld, Oracle announced the latest release of Oracle Database 12c Release 2 (12.2) for the cloud. The partition maintenance operations SPLIT PARTITION and SPLIT SUBPARTITION can now be executed as online operations for heap organized tables, allowing the concurrent DML operations with the ongoing partition maintenance operation. Oracle SQL now has W3C SPARQL Update support. The new pragma provides a formal way to communicate this message with a power that ordinary external documentation cannot convey. It also provides the ability to use PLSQL_BOOLEAN as IN, OUT, IN OUT parameters in Java or JDBC programs. High compression provides even more space savings than low compression. This feature simplifies the distribution of data files that can be loaded from different directory paths on different machines. Better return on investment through utilization of available resources on Active Data Guard for primary database workload tuning. SQL Tuning Advisor has been enhanced so that tuning can be initiated on one database but the actual tuning process is executed remotely on a different database. PL/SQL administration is also supported. The VM's do not require GI to be installed or configured within them. You can also specify this parameter in the OPTIONS clause inside the SQL*Loader control file. Users may also need to failover a PDB from a Data Guard Standby database to a new production container database when the production PDB has failed but the container database and all other PDBs function normally. When a pluggable database (PDB) is unplugged, all data files associated with a PDB along with the PDB manifest need to be copied or moved individually over to the remote server where it is plugged into another multitenant container database (CDB). Currently, transforms are documented with Oracle Data Pump and the metadata API, but DBAs prefer to query the database to get that information. While similar to the diagnostic collection feature, the Oracle Trace File Analyzer (TFA) Collector allows centralization and automatic collection of diagnostic information. The results can be stored as additional attributes with the original data. This feature effectively serves as an Oracle ACFS file system quota. Oracle Data Guard switchovers and Oracle RAC One Node transitions are more seamless during planned outages without requiring additional application logic. Multiple failover targets increase high availability by making an automatic failover more likely to occur if there is a primary outage. This feature provides better performance for queries because an extra cursor is not required to handle read-only MDATA sections. A virtual account can be the Oracle home user for Oracle Database single instance and client installations. By implicitly restoring a session state that is already synchronized to the client side to the post-failover session, OCI eliminates the requirement to write a failover callback. A database administrator (DBA) can create resource manager plans with the appropriate level of detail for the environment. Documents are still searchable after minor updates, without having to immediately perform an index synchronization. This feature set provides a simple to use and fool-proof way for most applications to continue operation during scheduled maintenance. This support enables operations on LOB-based data types across pluggable databases (PDBs) in an Oracle Multitenant environment. This is long awaited patchset by several partners and customers, and is the most comprehensive patch set we've ever built. In previous releases, the Oracle Data Guard broker lacked a ConfigurationWideServiceName configuration property shared by all members. Third party applications and Oracle Fusion Middleware are an example of target consumers of this library. The goal of this enhancement is to allow users to create this type of standby database using the DUPLICATE command. Oracle Database now supports Kerberos implementation with Direct NFS communication. Developers can now control the process for managing overflowing LISTAGG aggregates. Oracle RAC has supported IPv6 for the public network since Oracle Database 12c Release 1 (12.1). A new Oracle ACFS make file system switch enables you to format an Oracle ACFS file system with 4096-byte metadata structures composed of multiple 512-byte logical sectors on Oracle Automatic Storage Management Dynamic Volume Manager (Oracle ADVM) volumes. Without this you must open the remote PDB or non-CDB in read-only mode. The identification of positive or negative trends associated with search terms allows the building of richer search applications. This feature extends the scope of the text-based XMLIndex by enabling the index to optimize range-based searching. It simplifies the execution of the transient logical database rolling upgrade process by automating many manual steps in a simple PL/SQL package (DBMS_ROLLING). With this enhancement, Oracle Database conforms to the latest version of the Unicode Standard. The MESSAGE_TRACKING_FREQUENCY parameter specifies the frequency at which messages received by the apply process are automatically tracked. Oracle Database 12c Release 2 (12.2) provides two types of instances within the same database: read/write and read-only. Superior runtime performance using intelligent, data-dependent routing. Java containers, frameworks, and applications looking to handle FAN events can use these APIs to subscribe to Oracle Database RAC FAN events for building high availability solutions. Description:-This is the article which will guide you step-by-step Duplicating a Database Using RMAN in Oracle Database 12c Release 2. The new Oracle Text BESTMATCH query operator can find a collection of terms within a document even when all terms are not present or are present in variant forms. Oracle Database audit trail now includes the predicate or WHERE clause added by Oracle Virtual Private Database (VPD) policies. TFA encapsulates diagnostic data collection for all clusters and Oracle Database components on all servers into a single command executed on one server only. This feature closely tracks the real-life usage of privilege analysis and increases usability. This feature enables better end user quality of service. Redo Apply can now run on all or some standby instances as configured by the user. Providing longer identifiers gives customers greater flexibility in defining their naming schemes, such as longer and more expressive table names. The ability to run JavaScript in the database provides the following benefits: In this release, the Java version of the Oracle XSL processor is extended to provide complete support for the W3C XSL 2.0 Standard. A file set can be considered as a collection of ASM files belonging to a database or a pluggable database (PDB). agreement containing restrictions on use and disclosure and are protected by Automatic database failover provides high availability for server, database, network, and site outages. 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