Oracle 18c: Oracle 18c.. New Features.. What’s NEWS..

ByJoel Pérez ( Oracle ACE Director )

Oracle 18c: Oracle 18c.. New Features.. What’s NEWS..

Oracle 18c: Oracle 18c.. New Features.. What’s NEWS..

Oracle 18c 新功能一览


By Joel Peréz Skant Gupta


This article is brought by


Well.. Oracle 18c.. one release more.. ? Uhmm perhaps not.. Oracle 18c has a that kind of air of.. “Starting now.. it’s when Oracle Cloud Database will mark a real strong beginning..”


I have been playing with Oracle Databases in Cloud from some years ago when all this was barely starting.. when it was more the concept of “Cloud Computing” as a whole.. I’m talking about when the Cloud Computing model was originally designed to be implanted “On-prem”, basically with an arrange of some servers.. software.. resources ( CPU.. Memory.. etc ) and all that could be managed by Enterprise Manager to built your own Cloud infrastructure but “On-prem”, that was around year 2013.. the service of Public Cloud was not still available in that time.. In that time we started to know concepts of “Pay-as-you-go..”.. “Chargeback..” and things like that.. the real concept of that first commercial proposal was really a model of “Cloud Computing”


In that time the concept of Oracle Database Cloud was extreme far from what it’s nowadays.. of course.. the product.. the concept was getting mature.. getting shape..

A couple of years later the first Public Cloud services appeared in the market.. year 2015.. Uhmm.. this was really a more close image of what we were having in mind about Oracle Database Cloud.. of course.. it was product that was changing all time.. and getting mature.. at the beginning even you could not choose the database character set.. the wizard interface had more steps.. and so on.. it was like a child opening his/her eyes to the world.. and we could enjoy how all that was growing..


Little by little more Oracle Database Cloud Services were starting to be available as per we have now:

  • Oracle Database Cloud Service
  • Oracle Bare Metal Cloud Database Service
  • Oracle Database Exadata Cloud Service
  • Oracle Database Exadata Cloud Machine
  • Oracle Database Express Cloud Service


All these lastly mentioned does not include the future new Oracle Database Cloud Services that will be available starting with Oracle 18c.


So.. continuing with the subject.. Oracle Database Cloud services were still changing/evolving.. even its web interface, pricing model, etc until the last months.. so.. it can be said the product was still modeling itself.. but internally we can consider it already a strong product.


So, according to my point of view, all that was a process to see how the product had interaction with real people.. with real customers.. with real companies.. All that was the preparation way to present finally the king product.. “Autonomous Database Suit of Services on Oracle18c..”, which is a great mix of all learned with Oracle Cloud Database Services and all years making better and better the auto-performance tuning techniques.. ( AWR, ADDM, Advisors.. etc )


So, I consider Oracle 18c and all its new feature a real “before and after” related to Cloud Databases..


Oracle 18c as every release.. has many new features.. that can be suitable for some kind of companies and others not too much.. as always.. perhaps a small company for sure will not be interested in autonomous database running in a powerful Exadata and so on.. Perhaps new “Startup” companies could be very interested in the regular “Oracle Database Cloud Service” to have a cheap and fast IT infrastructure.. not thinking as before how costly could be to establish an own data center.. etc..


So, the point it’s.. Oracle 18c as every release has new features for everyone..


The objective of this article is to name/to introduce them briefly before we can get the real production release starting December 2018.


Then, Let’s talk briefly technically of What’s news in Oracle Database 18c..


The figure you will see now is the Lifetime Support Commitments and Plans for current and future Oracle Releases.















*Oracle Database 19c is expected to the long term support release.

Always check MOS Note 742060.1 for the latest schedule.


As you can see between all that information, we will have extended support of 12.2 until 2025 and Oracle 18c will start on December2017. There are a lot of people in fear for the future for DBAs related to Autonomous Database & Oracle 18c, if you want to read my point of view about that subject go here:

#10 Oracle 18c: “Oracle 18c and its impact on DBAs”


Now, Let’s highlight briefly some of what we have today and what we will have in Oracle Database 18c




  • In-Memory Column Store
  • Software in Silicon
  • Engineered Systems

Oracle Database 18c:

Low Latency Memory Transactions

  • 2x throughput for streaming ingest
  • 4x throughput for low latency key lookups

Non Volatile Memory Support

  • Multi Tiered Database Cache

In-Memory Column Store Improvements

  • Performance improvements
  • Automatic Population


Memory Optimized Access for OLTP Workloads

Example: Read Joel’s Balance






















Ultra-Fast key-based lookup:

  • Uses new lock-free In-memory hash index
  • Just declare table MEMOPTIMIZE FOR READ

New low latency client protocol with direct access to data engine

Performance benefits:

  • Up to 4x throughput increase for Primary Key based lookups
  • 50% lower response times


Memory Optimized Access for IoT Workloads

Example: Write Temperature Reading





















New streaming ingest:

  • Clients performs low-latency write into in-memory buffer
  • Buffered writes drained in background
  • Very high throughput inserts since server issues deferred writes in large batches


2x faster throughput than conventional

  • 21M inserts per second on 2-socket server




Container managed database virtualization

Manage Many as one

  • Patching, Backup, Security, Online Cloning, Online Relocation

Software as Service

  • Shared metadata, Data location transparency

Oracle Database 18c:

  • Per-PDB Switchover
  • Transportable Backups
  • Snapshot Carousel
  • Faster Upgrades

Example of

  • Per-PDB Switchover

























Oracle 18c: RMAN New Features.. What’s NEWS..


Oracle Data Guard

Oracle 18c: New Features for Oracle Data Guard.. What’s NEWS..


Oracle 18c: RAC New Features.. What’s NEWS..



Comprehensive HA and disaster recovery functionality

  • Real Application Clusters, Active Data Guard, Recovery Appliance

Oracle Golden Gate for heterogeneous replication

Scale out and fault isolation with Oracle Database Sharding


Oracle Database 18c:

Zero Impact Grid Infrastructure Patching

Sharded RAC

  • Logically partition data across instances in RAC
  • Sharded access for shard-aware applications and transparency for non-sharded applications

Sharding improvements

  • User Defined Sharding
  • Improved Cross Shard Query support


Sharded RAC

Higher performance for shard-aware RAC applications



























Affinitizes shards to RAC instances

  • Requests that specify sharding key will be routed to the RAC instance that logically holds the shard
  • Affinity gives better cache utilization and reduced block pings across instances

Requests that don’t specify sharding key still work transparently

Gives Sharded Database performance with minimal application changes

  • Just add sharding key to the most performance intensive operations




Security In-Depth

  • Access Controls, Encryption, Redaction, Masking, Auditing, SQL Firewalls

Key Vault

Audit Vault Database Firewall

Security Assessment Tool


Oracle Database 18c:

Integration with Active Directory

  • Authorization to database through Active Directory user/group mappings to database schema users and roles

Per PDB Key storage

Password-less schema creation

  • No default passwords















Data Warehousing and Big Data


The most advanced analytics engine available today

  • Partitioning, Compression, SQL, Analytical Views, Analytical SQL, Data Mining

Easily analyze data held in Hadoop with Big Data SQL

Big Data Appliance


Oracle Database 18c:

In-Memory for external tables

Automatic propagation of nologged data to standby

More Machine Learning algorithms

Polymorphic Table Functions

Alter Table Merge Partition Online

Approximate Query Improvements




Application Express 5.1

SQL Developer & SQLCl

Comprehensive Language support

  • PL/SQL, SQL , Python, Node.js, PHP, Java, C, .NET, REST


  • SQL Support


Oracle Database 18c:

Improved JSON Support

Property Graph Improvements

  • Support for PGQL

Rolling patches for OJVM

Private Temporary Tables


Private Temporary Tables

Transient tables useful for reporting applications


Global temporary tables

Persistent, shared (global) table definition

Temporary, private (session-based) data content

  • Data physically exists for a transaction or session
  • Session-private statistics


Private temporary tables (18c)

Temporary, private (session-based) table definition

  • Private table name and shape

Temporary, private (session-based) data content

  • Session or transaction duration


Database Instance Management REST API

  • A REST API to provide instance management and monitoring
  • Same consistent API for Cloud and On Premises
  • Simple API for all database lifecycle operations
  • Supports Oracle Databases integration with orchestration frameworks
  • Expected CY2018


List the pdbs in the exadata database container:


Official Docker Support

Oracle Database is fully supported on Docker for

  • Oracle Linux 7
  • Red Hat Enterprise Linux 7

** Oracle RAC is not supported on Docker “CURRENTLY” but in Oracle 18c Oracle RAC support is coming

MOS Note: Oracle Support for Database Running on Docker (Doc ID 2216342.1)

Oracle & images are available on Oracle Container Registry

Docker build files also available at


New Installation Approaches

  • Oracle Gold Image as a Service
  • On demand image creation including application of RUs, RURs and one off patches
  • Request images as a

Zip file, TAR File, Docker Image, Virtual Box, VM (Ravello, BMC, Vbox)

  • Web Interface or REST API
  • Coming soon…

Oracle Installation via RPM

  • Oracle EE, SE2, and Grid Infrastructure


Oracle Database 18c XE

  • Free use for development and production
  • Expected CY 2018
  • Nearly all functionality is included
  • Limited to 12GB of user storage
  • Limited to 2GB of SGA


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Author Bios:


Joel Pérez is an Expert DBA ( Oracle ACE Director, Maximum Availability OCM, OCM Cloud Admin. & OCM12c/11g ) with over 17 years of Real World Experience in Oracle Technology, specialised in design and implement solutions of: High Availability, Disaster Recovery, Upgrades, Replication, Cloud and all area related to Oracle Databases. International consultant with duties, conferences & activities in more than 50 countries and countless clients around the world. Habitual and one of leading writers of Technical Oracle articles for: OTN Spanish, Portuguese, English and more. Regular Speaker in worldwide Oracle events like: OTN LAD (Latin America), OTN MENA (Middle East & Africa), OTN APAC ( Asian Pacific), DTCC China, Oracle Code.. . Joel has always been known for being a pioneer in Oracle technology since the early days of his career being the first Latin American awarded as “OTN Expert” at year 2003 by Oracle Corp., one of the first “Oracle ACE” globally in the Oracle ACE Program at year 2004. He was honoured as one of the first “OCM Database Cloud Administrator” & Maximum Availability OCM in the world. Currently Joel works as Senior Cloud Database Architect in “Yunhe Enmo (Beijing) Technology Co.,Ltd”., company located in Beijing, China


Skant Gupta is an Oracle Certified Cloud Professional in Oracle Database 12c, an Oracle Certified Expert in Oracle Real Application Clusters (Oracle RAC) in Oracle Database 11g and 12c, and an Oracle Exadata Certified and an Oracle Certified Professional in Oracle Database 10g, 11g, and 12c. He works at Vodafone Technology in the UK and formerly worked as a senior DBA at Etisalat in Dubai. He has six years of experience with various Oracle technologies, focusing mainly on Cloud, database, and high availability solutions, Oracle WebLogic Suite, Oracle Exadata and Oracle GoldenGate. He has presented at several Oracle user groups worldwide, most recently in the US, the United Arab Emirates, and the India. Skant website link:


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About the author

Joel Pérez ( Oracle ACE Director ) administrator