Author: biju.thomas

“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.

“Oracle *daily* TidBits” (#oratidbit) published on Facebook &Twitter, during weekdays in April 2021. I hope you find these helpful to learn something new or to remind you of its existence and use. It’s a shorter list this month, as I did not tweet every day.

#OraTidbit #AutonomousDB Database Actions Data Load option helps you select data to load from your local computer, from tables in other databases, or from cloud storage. Then you can add the data you select to new or existing tables or views in Autonomous Database.

#OraTidbit #AutonomousDB Database Actions Catalog option helps you to see information about the entities in your Autonomous Database and to see the effect that changing an object has on other objects. The catalog provides a tool for you to examine data lineage and understand the impact of changes.

#OraTidbit #AutonomousDB Database Actions Data Insights option crawls a table or business model and discovers hidden patterns, anomalies, and outliers in your data. Insights are automatically generated by built-in analytic functions. The results of the insight analysis appear as bar charts in the Data Insights dashboard.

#OraTidbit #AutonomousDB Database Actions Business Models option describes the business entities that are derived from data in your Autonomous Database schema or from other sources. This allows you to create a semantic model on top of your data identifying hierarchies, measures, and dimensions.

#OraTidbit #AutonomousDB You can view Autonomous Database maintenance history to see details about past maintenance, such as the start time and stop time for past maintenance events.

#OraTidbit #Linux Oracle Linux Virtualization Manager is a server virtualization management platform that can be easily deployed to configure, monitor, and manage an Oracle Linux Kernel-based Virtual Machine (KVM) environment with enterprise-grade performance and support from Oracle.

#OraTidbit #AutonomousDB Autonomous Database uses predefined maintenance windows to automatically patch your database. Your database remains available during the maintenance window. Your existing database connections may get disconnected briefly; however, you can immediately reconnect and continue using your database.

#OraTidbit #AutonomousDB You can view Autonomous Database maintenance history to see details about past maintenance, such as the start time and stop time for past maintenance events. Your database remains available during the maintenance window.

#OraTidbit #OracleCloud The Network Visualizer provides a diagram of the implemented topology of all VCNs in a selected region and tenancy. Regional Network Topology shows a high-level layout and routing topology of the entire virtual network configuration within a region. Virtual Cloud Network Topology shows the organization of a single VCN including its subnets and routing configuration.

#OraTidbit #Exadata The Smart Flash Log Write-Back feature automatically and transparently stores the entire contents of redo log files using Exadata Smart Flash Cache in Write-Back mode, thereby eliminating the HDDs as a potential performance bottleneck. Depending on the system workload, overall log write throughput can improve up to 250%.

#OraTidbit #OracleCloud Oracle Integration is a fully managed service that allows you to integrate your applications, automate processes, gain insight into your business processes, and create visual applications.

#OraTidbit #OracleCloud OCI Database Migration is a fully-managed service that provides a high performing, self-service experience for migrating databases to OCI. It provides logical online and offline migration for enterprise-level database migration with minimal downtime.

#OraTidbit #OracleCloud The Oracle Cloud Infrastructure Streaming service provides a fully managed, scalable, and durable solution for ingesting and consuming high-volume data streams in real-time.

#OraTidbit #OracleCloud The Oracle Cloud Infrastructure OS Management service allows you to manage updates and patches for the operating system environment on your Oracle Cloud Infrastructure instances.

#OraTidbit #OracleCloud For each Exadata Cloud Service instance you provision, you are billed for the infrastructure for a minimum of 48 hours, and then by the second after that. Each OCPU you add to the system is billed by the second, with a minimum usage period of 1 minute.

#OraTidbit #SQLDev The SQL Developer unit testing feature provides a framework for testing PL/SQL objects, such as functions and procedures, and monitoring the results of such objects over time. The implementation of unit testing is modeled on the well known xUnit collection of unit test frameworks.

#OraTidbit #SQLDev For certain operations, you can invoke SQL Developer from the command line as an alternative to the graphical user interface using sdcli. If you enter just sdcli, the list of available features shows each sdcli command and its associated feature.

#OraTidbit #SQLDev SQL Developer includes an integrated version of SQL Developer Data Modeler. You can create, open, import, and save a database design, and you can create, modify, and delete Data Modeler objects.