Oracle EXP Function With Examples. The new ON STATEMENT refresh capability provides more flexibility to the application developers to take advantage of the materialized view rewrite, especially for complex transactions involving multiple DML statements. To work around this issue, Oracle Database uses abbreviated names (short names) internally, but maintains a correspondence between short names and full names (long names). This can improve scalability and performance. This feature leverages the new switch service functionality to reuse pooled connections across multitenant (pluggable) databases. Redo Apply can now run on all or some standby instances as configured by the user. This feature automatically synchronizes password files across Oracle Data Guard configurations. The Oracle Call Interface (OCI) session pool currently supports a scheme to drain work away from an instance prior to a planned outage. The left-truncated searches are now as fast as the right-truncated searches, without the need to use the WORDLIST attribute, SUBSTRING_INDEX. The calendar is based on the popular FullCalendar library and supports drag and drop, time-based events, and is even responsive. Extracts and returns a field from within a specified datetime value. Keyboard Shortcuts. A distinguishable extended Oracle RAC configuration allows for better reliability of extended Oracle RAC setups, either between sites or in smaller settings that require protection against storage array failures. It allows you to modify the matching behavior for the REGEXP_COUNT function. In June 2015, David Needle characterized "so-called data lakes" as "one of the more controversial ways to manage big data". By allowing access to all PDBs in a multitenant container database (CDB) from a single port, database security is enhanced by reducing open ports and possible attack vectors. This allows efficient pool reuse while giving incomplete transactions a longer time to be concluded. Oracle Application Express Application Builder User's Guide, Oracle Database Data Cartridge Developer's Guide, Oracle Database Globalization Support Guide, Oracle Database PL/SQL Packages and Types Reference, Oracle Database PL/SQL Language Reference, Oracle Data Provider for .NET Developer's Guide for Microsoft Windows, Oracle Call Interface Programmer's Guide, Oracle Universal Connection Pool Developer's Guide, Oracle XML Developer's Kit Programmer's Guide, Oracle Database SecureFiles and Large Objects Developer's Guide, Oracle Data Guard Concepts and Administration, Oracle Real Application Clusters Administration and Deployment Guide, Oracle Database VLDB and Partitioning Guide, Oracle Database Backup and Recovery Reference, Oracle Real Application Clusters Installation Guide for Linux and UNIX, Oracle Database Backup and Recovery User's Guide, Oracle Database Vault Administrator's Guide, Oracle Clusterware Administration and Deployment Guide, Oracle Text Application Developer's Guide, Oracle Grid Infrastructure Installation and Upgrade Guide for Linux, Oracle Database Net Services Administrator's Guide, Oracle Autonomous Health Framework User's Guide, Oracle Database Performance Tuning Guide, Oracle Automatic Storage Management Administrator's Guide, Oracle Database Real Application Security Administrator's and Developer's Guide, Oracle Spatial and Graph RDF Semantic Graph Developer's Guide, Oracle Spatial and Graph Property Graph Developer's Guide, Oracle Spatial and Graph Developer's Guide, Oracle Spatial and Graph GeoRaster Developer's Guide, Oracle Database Workspace Manager Developer's Guide, Oracle Database Platform Guide for Microsoft Windows, Oracle Database Installation Guide for Microsoft Windows, Database Development Productivity Tools Enhancements, Reducing Costs and Complexities of Migration to Oracle Database, Support for the .NET and MS Development Community, Support for the Java Development Community, Application Express 5.0: Packaged Applications, Application Express 5.0: User Interface Enhancements, Application Express 5.0: Improved Application Builder Design, Application Express 5.0: Interactive Reporting, Application Express 5.0: Mobile Enhancements, Application Express 5.0: Modal Dialog Pages, Application Express 5.0: All New Calendar, AL32UTF8 As the Default Database Character Set, PL/Scope Reports on Static SQL Statements and Call Sites for Dynamic SQL, Enhancing CAST Function With Error Handling, New SQL and PL/SQL Function VALIDATE_CONVERSION, Binding PL/SQL-Only Data Types to SQL Statements Using DBMS_SQL, New PL/SQL Pragma to Mark an Item as Deprecated, Materialized Views: Real-Time Materialized Views, Materialized Views: Statement-Level Refresh, Oracle Java Virtual Machine Support for Long Identifiers, Static PL/SQL Expressions Now Allowed Where Previously Literals Were Required, Longer Schema Identifiers for Oracle Data Provider for .NET, Real Application Clusters Connection Node Affinity, Longer Schema Identifiers for Oracle Provider for OLE DB, PL/SQL Callback Facility for Session State Fix Up, New MAX_TXN_THINK_TIME Setting for DRCP Pooled Servers With Transactions in Progress, DRCP Statistics Views and AWR Reports for Performance Monitoring and Tuning, Oracle JDBC Support for JDK 8 and JDBC 4.2, Oracle Universal Connection Pool (UCP) Configuration Using XML, Universal Connection Pool Health Check Frequency, JDBC Support for Deprioritization of Database Node, Oracle Java Virtual Machine (OJVM) Web Services Callout, JavaScript Stored Procedures Using Java 8 Nashorn, Enhancing the Oracle XML Developers Kit for Java (XDK/J), Loading Sub-Documents from XML Documents Using ORACLE_LOADER, Distributed Operations on CLOB, BLOB and XMLType, Minimizing Impact on Primary Database When Using Multiple SYNC Standby Databases, Oracle Data Guard Broker Support for Multiple Automatic Failover Targets, Oracle Data Guard Broker Support for Multiple Observers, Simplifying Observer Management for Multiple Fast-Start Failover Configurations, Oracle Data Guard Broker Support for Transport Destinations of Different Endianess Than the Primary, Oracle Data Guard Broker Support for Oracle Data Guard Multiple Instance Apply, Oracle Data Guard Broker Support for Enhanced Alternate Destination, Fast-Start Failover in Maximum Protection Mode, Block Comparison Tool Support in Oracle Data Guard Broker DGMGRL Interface, Oracle Data Guard Broker Support for Executing DGMGRL Command Scripts, Broker ConfigurationWideServiceName Configuration Property, Enhancing Support for Alternate Destinations, Automatically Synchronize Password Files in Oracle Data Guard Configurations, Preserving Application Connections to An Active Data Guard Standby During Role Changes, Application Continuity for OCI Applications, Transaction Guard for Oracle XA Transactions, Java Support for FAN APIs (UP, DOWN and LoadAdvisory Events), JDBC Driver Support for Fast Application Notification (FAN), Planned Outage for Oracle Data Guard Switchover and Oracle RAC One Node, Application Continuity for Planned Database Maintenance, Data Guard Broker PDB Migration or Failover, Error Handling Improvements for Oracle GoldenGate Integrated Replicat, XStream Inbound Server Performance Optimizations, Optimizing Batch Update During Redefinition, Materialized Views: Fast Dependent Materialized View Refresh During Redefinition, Redefinition Supports Tables With BFILE Columns, Formalizing Retirement of an Edition With Automatic Garbage Collection, Online Conversion of a Nonpartitioned Table to a Partitioned Table, Partitioning: Table Creation for Partition Exchange, Partitioning: Filtered Partition Maintenance Operations, Oracle Recovery Manager - Enhanced Table Recoveries Across Schemas Using REMAP SCHEMA, Disk Space Check During RECOVER TABLE Operation, Upgrading the Incremental Transportable Scripts, Cross-Platform Import of a Pluggable Database into a Multitenant Container Database, Cross-Platform Migration Support for Encrypted Tablespaces, Data Guard DUPLICATE Command Enhancements, DUPLICATE Command Support for Non Auto-Login Wallet Based Encrypted Backups, Automatic Deployment of Oracle Data Guard, Creating Data Guard Standbys With Database Configuration Assistant, Statement-Level Routing and Cross-Shard Queries, Enhancing SSL and Kerberos Authentication for Administrative Users, Oracle Label Security Support for Oracle Data Guard Database Rolling Upgrade, Oracle Database Vault Support for Oracle Data Guard Database Rolling Upgrade, Oracle Database Vault Support for Flashback Technology and ILM, Oracle Data Guard Broker Support for Oracle Active Data Guard Rolling Upgrades, Big Data Management System Infrastructure, Enhancing Query Processing and Optimization, High Performance Oracle Advanced Analytics, Data Mining, and Predictive Analytics, Oracle Parallel Query Services on Oracle RAC Read-Only Nodes, External Tables Can Access Data Stored in Hadoop Data Sources Including HDFS and Hive, Scan Rate and In-Memory Columnar Statistics, Cursor-Duration Temporary Tables Cached in Memory, Oracle Database Can Contain Both Read/Write and Read-Only Instances, Oracle Advanced Analytics Extensibility for R Models, Oracle Advanced Analytics Association Rules Enhancements, Significant Performance Improvements and Support for Partitioned Models, Explicit Semantic Analysis Algorithm Enhancement, Support for Range-Based XML Queries with Text-Based XML Index, Improving Token Management for Binary XML, Partitioning: Improving Support for XMLIndex, Text: Reverse Token Index for Left-Truncated Queries, DBFS, Oracle Exadata and SecureFiles Enhancements, HCC Compress Data With ADO Row-Level Policy, Support for Automation of Large Scale Cloud Deployments, Oracle Grid Infrastructure Installation Using Zip Images, Text: Partition-Specific Near Real-Time Indexes, Text: Improving Management of Near Real-Time Indexes, Text: Structured/Sort Data (SDATA) Section Improvements, Text: Availability of Updated Documents in Index, Text: Join Character Support for JAPANESE_VGRAM_LEXER and WORLD_LEXER, Text: Extracting Synonyms of Words in Documents, Text: Changes to NDATA, NEAR2, and NESTED NEAR Query Operators, Materialized Views: Refresh Statistics History, Partitioning: Multi-Column List Partitioning, Parameter Default and File Location Changes for Read-Only Oracle Home for Oracle Text, Heat Map and Automatic Data Optimization Support for CDBs, Logical Standby Database to Support CDBs with PDBs with Different Character Sets, LogMiner to Support CDBs with PDBs with Different Character Sets, Support for PDBs with Different Character Sets, Time Zone File Versions, and Database Time Zones in a CDB, Performance Profiles and Mandatory PDB Profiles, Forwarding Connections to A New Address Based on Service, Upgrading a CDB With One or More PDBs in a Single Operation, Support for Thousands of Pluggable Databases for Each Multitenant Container Database, Pluggable Database Lockdown Profiles Enhancements, Pluggable Database Operating System Credentials, Enhancing Ease-of-Use and Reporting From Pre-Upgrade Information Tool, Automatically Set User Tablespaces to Read-Only During Upgrade, Oracle Data Pump Parallel Import of Metadata, Oracle Data Pump Parallel Export of Metadata, New Options for Substitution Variables in Oracle Data Pump File Names, TRUST_EXISTING_TABLE_PARTITIONS Flag for DATA_OPTIONS Parameter of Import, GROUP_PARTITION_TABLE_DATA Flag for DATA_OPTIONS Parameter of Export, Data Verification Option to Import, ORACLE_LOADER Access Driver and OCIDirPath, ORACLE_DATAPUMP and ORACLE_LOADER Access Driver Supports New File Format, Support for Tables With LONG Data Types in Data Pump Network Mode Operations, Metadata Transforms Available for Oracle Data Pump in New Views, Adding Oracle Data Pump and SQL*Loader Utilities to Instant Client, Allowing Multi-Byte Strings for SQL*Loader Parameters Used for Express Mode, Database Migrations: Support LLS Files Generated by DB2 Export Utility, Trace File Analyzer: Web-Based Visualization, Trace File Analyzer: Optimizing Diagnostic Collection, Trace File Analyzer: Automating Diagnostic Collection, Trace File Analyzer: Managing Diagnostic Collection, Trace File Analyzer: Feedback to Auxiliary Systems, XStream and GoldenGate Inbound Server Message Tracking, Trace File Analyzer: Enabling Time-Trimmed Diagnostic Collection, RMAN: Backing Up Sparse Databases in the Backup-Set Format, RMAN: Backing Up Sparse Databases in the Image Copy Format, Oracle Data Guard Support for Oracle Diagnostics Pack, Active Data Guard Support for SQL Tuning Advisor, SQL Performance Analyzer and SQL Tuning Sets Enhancements, Oracle Enterprise Manager Database Express (EM Express) Resource Manager Support, EM Express: SQL Performance Analyzer (SPA) Support, EM Express: Simplifying Configuration for Multitenant Through Single Port Access, Oracle Enterprise Manager Database Express (EM Express) Support for Simplified Database Resource Management, Automatic Workload Repository (AWR) Support for a Pluggable Database (PDB), AWR_PDB_AUTOFLUSH_ENABLED Initialization Parameter, ENABLE_AUTOMATIC_MAINTENANCE_PDB Initialization Parameter, AUTOTASK_MAX_ACTIVE_PDBS Initialization Parameter, Advanced Queuing: PL/SQL Enqueue and Dequeue Support for JMS Payload in Sharded Queues, Advanced Queuing: PL/SQL Enqueue and Dequeue Support for Non-JMS Payload in Sharded Queues, Global and Shared Connection Pool for Oracle Cloud and Multitenant Oracle Databases, Oracle Database Java Virtual Machine Performance Enhancements, Automatic Data Optimization Support for In-Memory Column Store, Oracle Database In-Memory Support on Oracle Active Data Guard, Controlling Outbound Database Link Options, Rapid Home Provisioning and Patch Management, Oracle Flex ASM Disk Group Quota Management, Extending Oracle Real Application Clusters (Oracle RAC) Configuration Support, Cluster Verification Utility - Second Generation Command Line Output, Shared Grid Naming Service High Availability, Reasoned What-If Command Evaluation (Why-If), Oracle Grid Infrastructure Installation Support for Application Cluster Installation Type, Oracle Automatic Storage Management Cluster File System (Oracle ACFS) Snapshot Enhancements, 4K Sectors and Metadata Enhancements for Oracle ACFS, Oracle ACFS Metadata Collection Enhancements, Oracle ACFS API Access for Snapshots, File Tags, Plug-in Metrics, Oracle Snapshot-Based Replication Enhancements, Oracle ACFS NAS Maximum Availability eXtensions, Support for IPv6 Based IP Addresses for the Oracle Cluster Interconnect, Oracle Real Application Clusters (Oracle RAC) Reader Nodes, Service-Oriented Buffer Cache Access Optimization, Enforcing Application Security in the Database, Improving Security Manageability, Administration, and Integration, Improving Security Posture of the Database, Improving User Authentication and Management, Modernizing Network Authentication and Encryption, Support for ARIA, SEED, and GOST Encryption Algorithms in TDE, Oracle Virtual Private Database Predicate Audit, Oracle Database Vault Simulation Mode Protection, Oracle Database Vault Common Realms and Command Rules for Oracle Multitenant, Redaction: Different Data Redaction Policy Expressions, Redaction: New Functions Allowed in Data Redaction Policy Expressions, Redaction: Additional Data Redaction Transformations, Automatic KDC Discovery When Configuring OCI Clients, Automatic Provisioning of Kerberos Keytab for Oracle Databases, SYSRAC - Separation of Duty for Administering Real Application Clusters, Transparent Sensitive Data Protection Feature Integration, Requiring Strong Password Verifiers by Default, Automatic Locking of Inactive User Accounts, Kerberos-Based Authentication for Direct NFS, RDF Semantic Graph Support for W3C Standards, Extending JSON Support in Oracle Database With Spatial Operations, In-Database Location Tracking Data Model and Services, Network Data Model Support for Oracle Coherence, Support for Hash and List Partitioning of Spatial Indexes, GeoRaster Map Algebra and Image Processing Enhancements, Open Geospatial Consortium Web Map Service and Web Map Tile Service Support, Geospatial Consortium Web Coverage Service 2.0 Support, Integrating With the Latest Windows Platforms and Services, Windows Install: Support Virtual Accounts and Group Managed Accounts, Microsoft Management Console Can Manage Oracle Database, Windows Direct NFS Client Supports All Widely Accepted NFS Path Formats, Oracle Database 12c Release 2 (12.2) New Features. PL/SQL administration is also supported. Read-only partitions and subpartitions enable fine-grained control over DML activity. EXTRACT. 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). You can specify the limit as either I/O requests per second or as Mbps (megabytes of I/O per second). The purpose of PL/SQL is to issue SQL statements. Heat Map and ADO are now usable in databases that are consolidated using Oracle Multitenant, providing the benefits of automatic tracking of access patterns at the block and segment level, and automatic storage and compression tiering of data based on user-defined policies. 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. This is an extension to the existing read-only table functionality. The Grid Naming Service (GNS) is linked to the corporate Domain Name Service (DNS) so that clients can resolve dynamic addresses and transparently connect to the cluster and the databases in the data center. Separation of duty for administering Oracle RAC (SYSRAC) improves the security of Oracle Database and reduces reliance on SYSDBA privilege to do Oracle RAC administration. Support is provided for both XStream outbound and inbound servers. Database links can carry sensitive information (depending on the connect options) and should be secured. By default, TFA considers Oracle Database alert logs, Oracle ASM alert logs, and Oracle Clusterware alert logs for this feature. This allows DBAs to offload tuning of the primary database workload to an Active Data Guard standby and tuning of Active Data Guard SQL workloads on Active Data Guard itself. The following example extracts the value of the /Warehouse/Dock node of the XML path of the warehouse_spec column in the sample table oe.warehouses: Compare this example with the example for EXTRACTVALUE, which returns the scalar value of the XML fragment. Choose Virtual Machines to Restore, Step 5. In this case the part of the statement is processed on both read/write and read-only instances while the INSERT part is processed only on read/write instances. You can still use the old listener and you do not need to change the client application. The routing engine in Oracle Spatial and Graph can now use time-based data including time zones, traffic patterns, and time-based constraints (for example, no turns from 6 AM to 9 AM). It will perform a case-insensitive search so it will return 2.