Category: TidBits

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Oracle Tidbits: June 2021 #OraTidbit

“Oracle *daily* TidBits” (#oratidbit) published on Facebook &Twitter, during weekdays in June 2021. I hope you find these helpful to learn something new or to remind you of its existence and use.

#OraTidbit #OracleCloud Exadata Cloud Service has a non-rolling infrastructure patching option. This option allows you to reduce the total time your system is undergoing quarterly maintenance but does involve system downtime.
#OraTidbit #OracleCloud AWR Viewer in Database Management integrates performance and data visualization tools, displaying the historical performance data from AWR snapshots in easy-to-interpret charts. You can use the #OCI Database Management service to monitor and manage your on-premises Oracle Databases.
#OraTidbit #OracleCloud Data Flow is a fully managed service for running Apache Spark applications. It allows developers to focus on their applications and provides an easy runtime environment to execute them. There is no need to spend any time on the underlying infrastructure, cluster provisioning, or software install.
#OraTidbit #OracleCloud The Data Science service enables data science teams to build, train, and manage machine learning and artificial intelligence models on Oracle Cloud. Notebook Sessions provide a JupyterLab interface where data scientists can write and execute Python code to build, train, evaluate, and explain models using a wide variety of pre-installed open-source and Oracle machine learning libraries.
#OraTidbit #AutonomousDB You can use Autonomous Database as a Recovery Manager (RMAN) recovery catalog. Recovery Manager (RMAN) recovery catalog is preinstalled in Autonomous Database in schema RMAN$CATALOG. The preinstalled catalog version is based on the latest version of Oracle Database and is compatible with all supported Oracle database versions.
#OraTidbit #OracleCloud Oracle Integration is a secure, unified platform that lets you connect cloud and on-premises applications, automate business processes, gain insight into your business through business metrics analysis, and develop web and mobile applications.
#OraTidbit #OracleCloud Oracle Integration includes a portfolio of recipes for integrating different applications. Think of a recipe as a template or pre-assembled solution that gives you a head start in building your integrations. You can start with a recipe, and then customize it to fit your needs and requirements.
#OraTidbit Application Continuity Protection Check (ACCHK) (#db21c feature backported to 19.11) provides guidance on the level of protection for each application that uses Application Continuity and assists you to increase protection if required.
#OraTidbit Oracle database has two core mechanisms to work with data in OCI object stores – DBMS_CLOUD package or manually defining external tables. The DBMS_CLOUD package is available in Oracle Database 19c, starting with version 19.10.
#OraTidbit #AutonomousDB Automatic partitioning analyzes and automates partition creation for tables and indexes of a specified schema to improve performance and manageability in Autonomous Database. Automatic partitioning, when applied, is transparent and does not require any user interaction or maintenance.
#OraTidbit #AutonomousDB Automatic partitioning uses a single-column partition key combined with single-level partitioning. Partition methods: AUTOMATIC INTERVAL, LIST AUTOMATIC, HASH. Automatic partitioning analyzes application workload and finds the optimal partitioning strategy.
#OraTidbit #AutonomousDB Graph Studio provides graph data support in Oracle Autonomous Database to model, create, query, and analyze graph data. Graph Studio includes notebooks, developer APIs for executing graph queries using PGQL, nearly 60 built-in graph algorithms, and offers dozens of visualizations including native graph visualization.
#OraTidbit #AutonomousDB Database Actions is a web-based interface that uses Oracle REST Data Services to provide development, data tools, administration, and monitoring features for Oracle Autonomous Database. The main features include executing your SQL statements and scripts, creating Data Modeler diagrams, developing RESTful web services, managing JSON collections, and using the Data Load, Catalog, Data Insights, Business Models, and Data Transforms tools to load data from local and remote sources, view data in your tables and views, view objects in your data dictionary, and organize, analyze, and transform your data.
#OraTidbit #db21c Database Nest is an infrastructure that provides operating system resource isolation and management, file system isolation, and secure computing for CDBs and PDBs. This infrastructure enables a database instance to run in a protected, virtualized environment.
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Oracle Tidbits: May 2021 #OraTidbit

“Oracle *daily* TidBits” (#oratidbit) published on Facebook &Twitter, during weekdays in May 2021. I hope you find these helpful to learn something new or to remind you of its existence and use.

#OraTidbit #OracleCloud Always Free Oracle Cloud Service includes a maximum of 2 instances of Autonomous Database – Data Warehouse, Transaction Processing, JSON Database, and APEX Service. JSON Databases and APEX service are new in April.
#OraTidbit #AutonomousDB New in April. When you create dedicated Autonomous Database deployments on Oracle Public Cloud, you can deploy to X8M Exadata Database Machine systems.
#OraTidbit #AutonomousDB Graph Studio features include automated modeling to create graphs from database tables, an integrated notebook to run graph queries and analytics, and native graph and other visualizations. Graph Studio is a fully integrated, automated feature with Autonomous Database.
#OraTidbit #Middleware Oracle Coherence is a distributed cache and in-memory data grid solution that is used by applications for fast and reliable access to frequently used data.
#OraTidbit #OrclDB Oracle Data Pump is used for migrating application data. In the #db21c release, a checksum is added to the dump file to help to confirm that the file is valid after a transfer.
#OraTidbit #OrclDB Starting with #db21c release, Oracle Data Pump can perform exports from Oracle Autonomous Database into dump files in a cloud object store. Oracle Data Pump supports dump file export from OCI PaaS database services to the object store.
#OraTidbit #OrclDB Starting with #db21c release, Oracle SQL*Loader accesses data in an object store by presenting user-defined credentials. Oracle SQL*Loader can specify credentials that you define to access and read data from files in an object store into Oracle Database.
#OraTidbit #AutonomousDB Autoscaling is enabled by default when you create an Autonomous Database instance. With auto-scaling enabled the database can use up to three times more CPU and IO resources.
#OraTidbit #AutonomousDB Autonomous Database CPU scale up or scale down operation does not require any downtime; it is seamless. OCI DBCS, all Public Cloud IaaS, and AWS RDS instance scaling require downtime.
#OraTidbit #db21c You can set the TABLESPACE_ENCRYPTION_DEFAULT_ALGORITHM dynamic parameter to define the default encryption algorithm for tablespace creation operations. For example if you set TABLESPACE_ENCRYPTION_DEFAULT_ALGORITHM to AES256 then future tablespace creation operations will use AES256 as the default encryption algorithm.
#OraTidbit #db21c Application Continuity Protection Check (ACCHK) provides guidance on the level of protection for each application that uses Application Continuity and assists you to increase protection if required.
#OraTidbit #db21c Oracle Automatic Storage Management Cluster File System (Oracle ACFS) automatic shrinking automatically shrinks an Oracle ACFS file system based on policy providing there is enough free storage in the volume.
#OraTidbit #db21c #Exadata Automatic indexing considers more cases for potential indexes and allows inclusion or exclusion of specific tables. An enhancement has been introduced to reduce the overhead of cursor invalidations when a new automatic index is created.
#OraTidbit #OracleCloud Oracle provides two core mechanisms to work with data in object stores as part of the DBMS_CLOUD package or manually defining external tables. The DBMS_CLOUD package is available in Oracle Database 19c, starting with version 19.10.
#OraTidbit #OrclAPEX Oracle Application Express release 21.1 requires an Oracle Database release 12.1.0.2 or later, including Enterprise Edition (EE) and Express Edition (Oracle Database XE).
#OraTidbit #OrclDB Application Continuity masks outages from end-users and applications by recovering the in-flight work for impacted database sessions following outages. Application Continuity performs this recovery beneath the application so that the outage appears to the application as a slightly delayed execution.
#OraTidbit #AutonomousDB Autonomous Database has full support for data represented as JSON documents. In Autonomous Databases, JSON documents can coexist with relational data.
#OraTidbit Oracle Analytics Desktop provides standalone data exploration and visualization in a per-user desktop download. Oracle Analytics Desktop is the tool for quick exploration of sample data from multiple sources or for analyses and investigation of your own local data sets.
#OraTidbit #OracleCloud Using Zero Downtime Migration to migrate your database from on-premises to OCI DBCS, Exadata Cloud Service, or Exadata Cloud at Customer involves creating a backup of the source database and restoring it to the target database, followed by an Oracle Data Guard sync and switchover of the primary role from the source database to the target database.