Oracle Database 19c - poslední z rodiny 12.2 a co přináší nového

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Oracle Database 19c

• Worlds most popular database
• Scales from a single CPU to
thousands of CPUs
• Manages both OLTP and Data
Warehousing workloads
• The most secure and highly available
database for the enterprise
Oracle Database : 40 Years of Innovation

Production on
Exadata, Linux,
Solaris, Windows,
ZLinux, AIX and
HP-UX
4

Core aims :
Long Term Stability
5

12.2.0.312.2.0.212.2.0.1
Long Term Support Release of the 12.2 Family

12.2.0.312.2.0.212.2.0.1
Continual improvements in each release….
Sharding
Multitenant, Online
Clone and Relocate
Autonomous Health
Framework
New In-Memory Features
Online Encryption

12.2.0.312.2.0.212.2.0.1
Sharded RAC
Multitenant Snapshot
Carousel
Private Temporary Tables
Mem Optimized Row Store
T1 T2 T3 T4
Active Directory IntegrationActive
Directory

New Install Approaches
• Oracle Database 18c RPM Install
– Yum install from OLN
• Oracle Read Only Homes
• No click through client software
install
• Oracle Docker images
9

12.2.0.312.2.0.212.2.0.1
High speed data ingestion
Active Data Guard DML
Redirect
Automatic Indexing
Hybrid Partition Tables
JSON Improvements
SALESTABLE
Q1 Q2 Q3

Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | 11
Read Only Oracle HomeInline External Tables
And Many Many More….OnlineTableMove
JSON
Real Time Materialized Views
IndexCompression
Auto Generated Sequences
Long Identifiers
Online Tablespace Encryption
Property Graph
SQL Plan Management Enhancements
TopNQueries
Invisible Columns Longer Varchars
Security Assessment Tool
LiveSQL
IndexUsageStats
Application
Continuity
Data Guard DML Redirect
Polymorphic Table Functions
Load From Object Stores
Integration with Active Directory
Unicode 9 Support
Quarantine for SQL Plans
Auto Indexing
Analytical Views
Partitioned Hybrid Tables
Real-Time Statistics
Approximate Functions
Schema-only Oracle accounts
PL/SQLQualifiedExpressions
Neural Networks

Database
Upgrade

Database Release and Support Timelines up until 19c2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
EXTENDED*
18c
11.2.0.4 EXTENDED
EXTENDED12.1.0.2
12.2.0.1
19c
Paid Extended SupportPremier Waived Extended Support Fee
13
*Oracle Database 19c is the long term support release.
Always check MOS Note 742060.1 for the latest schedule.
Confidential - Oracle Internal Only

Direct Upgrade to Oracle Database 19c
12.2.0.1
12.1.0.2
11.2.0.4
12.2.0.2
12.2.0.3
19c is Oracle’s recommended release
for all Database upgrades.

New AutoUpgrade Tool
• Oracle Database AutoUpgrade allows DBAs to upgrade one
or many databases without human intervention
• The AutoUpgrade utility identifies issues before upgrades,
deploys upgrades, performs post upgrade actions, and
brings up the upgraded Oracle Database
• Currently supports 12.2 and 18c
15
12c
19c
* See MOS Note 2485457.1

Oracle Database
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Performance and Scalability
• Continuous Innovation and Improvement
• Row Level Locking, Read Consistency, B-Tree Indexes,
Bitmap Indexes, Materialised Views, Parallel Query,
Advanced Compression, ASM, Results Cache
• Software in Silicon
• In-Memory Column Store
• Exadata provides the best database platform
for all workloads
18
New in 12.2, 18c, 19c
• 12.2
• In Memory JSON Queries
• In Memory Active Standby
• 18c
• Memory Optimized Row Store
• 19c
• Fast ingest support for IoT type workloads
• Quarantine for SQL Statements
• Improvements for count distinct and group
by queries

• A memory optimised mechanism for
inserting data into the database
• Ideal for light weight IoT transactions
• Rows are cached in memory and
asynchronously drained to disk
• An API allows developers to check on the
durability of their inserts
– Declare table MEMOPTIMIZE FOR WRITE
– Use new hint MEMOPTIMIZE_WRITE
Memoptimized Rowstore : Fast Ingest Support
SGA
BUFFER CACHE
LARGE POOL SHARED POOL
Batched Rows
Batched Rows
Batched Rows
DRAINER PROCESSES
WRITE VERIFICATION API
APPLICATION
SERVER
HIGH VOLUME
INSERTS
IOT : SENSORS,
TELEMETRY,
LOCATION ETC.

SQL BELOW
RESOURCE
THRESHOLD
RESULTS
RETURNED SQL CONSUMING
EXCESSIVE
RESOURCE
SQL PREVENTED
FROM RE-RUNNING
DBA CAN MONITOR AND
EXPORT QUARANTINED SQL
OR CHANGE THE PLAN TO GET
IT OUT OF QUARANTINE
USER EXECUTES
SQL STATEMENT
SQL Quarantine
• SQL execution plans consuming excessive
resources are quarantined
• It’s prevented from executing again
• Improves overall responsiveness of the
system by stopping “rogue” SQL
statements being continually resubmitted
• DBA can monitor quarantined statements
in V$SQL
• Controlled by DBMS_SQLQ or
DBMS_RESOURCE_MANAGER

Capture
Identify
VerifyDecide
Monitor
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Automatic Indexing
• The Automatic Indexing methodology
is based on a common approach to
manual SQL tuning
• It identifies candidate indexes and
validates them before implementing
• The entire process is fully automatic
• Transparency is equally important as
sophisticated automation
– All tuning activities are auditable via
reporting

Automatic Indexing In Action On Netsuite Workload
• Ran a complex Netsuite workload, and compared ATP to existing expert tuning
• 17,542 SQL statements, 1,852 tables, 8,151 indexes - years of tuning to create these indexes
– Before running on ATP, all indexes and statistics were dropped
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Achieved identical performance to expert manual tuning
Stays tuned as workload changes
Elapsed
Time
(sec)
Expert Autonomous
11551172
Indexes
Used
Expert
Autonomous
1733
4663

High Availability
23
New in 12.2, 18c, 19c
• 12.2
• Sharding
• Autonomous Health Framework
• 18c
• Sharded RAC
• 19c
• Data Guard DML Redirect
• Sharding now supports multiple PDB
shards in a CDB
• Improvements to Application Continuity
• Comprehensive HA and disaster recovery
functionality
• Real Application Clusters, Active Data Guard, Recovery
Appliance
• Oracle GoldenGate for heterogeneous replication

Active Data Guard : DML Redirection
• Allows DML to be executed against the standby database
• On execution the DML operation is passed to the primary database
• The primary database performs the operations and generates the redo
• The redo is then applied to the standby and control returned to the
application
• The transaction is fully ACID compliant
• Allows for incidental updates to be run against the standby increasing the
overall flexibility of the disaster recovery architecture
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Active Data Guard : DML Redirection
• Read Mostly Standby
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PRIMARY ACTIVE STANDBY
DML1
2 DML IS REDIRECTED TO PRIMARY
3 DML IS APPLIED TO PRIMARY
4 DATA CHANGE IS STREAMED TO STANDBY
5 DATA IS VISIBLE TO
CLIENT

Application Development
27
New in 12.2, 18c, 19c
• 12.2
• Long Identifiers
• Case Insensitive Databases
• 18c
• Improved JSON Support
• C, Python, Javascript JSON SODA API
• Private Temporary Tables
• 19c
• SQL JSON Enhancements
• Partial JSON Update support
• Application Express provides a low code platform
for building stunning scalable applications
• SQL Developer IDE & SQLCl provide class leading
functionality for both developers and admins
• Comprehensive Language support
• PL/SQL, SQL , Python, Node.js, PHP, Java, C, .NET, REST
• JSON for schema less development

Oracle Database 19c JSON Support
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• The Oracle Database provides comprehensive support for JSON
– Via Standard DML
– NoSQL APIs (Java, REST, C, Python, JavaScript, PL/SQL)
– Analytics (Dot Notation Access, Parallel Query, QBE, Columnar Access)
– JSON Data Guide to analyze the meta data of JSON Collections
• Improvements in Oracle Database 19c include
– JSON Update operations
– Materialized View Support for Queries containing JSON_TABLE
– JSON Function Simplification

• New SQL function
JSON_MERGEPATCH enables
you to update specific portions of a
JSON document without having to
replace the entire document
• Imagine we need to update all of
the JSON documents in the
po_document column of the
purchaseorder_tab table to
remove the field "Special
Instructions"
UPDATE purchaseorder_tab
SET po_document = json_mergepatch(
po_document,
'{"Special Instructions":null}’
);
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Partial JSON Update Support

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 provides an out of the box
high performance analytics platform
31
New in 12.2, 18c, 19c
• 12.2
• Partitioned External Tables
• Analytical Views
• 18c
• Neural Network Support
• In-Memory for external tables
• Automatic propagation of nologged data to
standby
• 19c
• Partitioned Hybrid Tables
• Real Time Stats Collection

Real-Time Statistics
• Gather statistics as part of conventional DML
(Insert/update/merge)
• Statistics gathered during DML needs to be fast with
negligible overhead
• Only most essential stats are gathered to avoid
catastrophic SQL execution plan performance
regressions (e.g. avoiding out-of-range conditions)
– Min, Max, num_rows, etc.
• Gathering of remaining statistics is deferred
– Automatic statistics gathering job still kicks in as needed
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ORDERS
ORDERS Stats
INSERTS/UPDATES
DELETES
STATS ARE MAINTAINED AS
DATA IS MODIFIED

Hybrid Partitioned Tables
• Extends Oracle Partitioning by enabling partitions to reside in both Oracle
Database segments and in external files
• External partitions may reside on standard file systems, HDFS or Object
Storage (coming soon).
• This model supports the placement of data for long term archiving on
lower cost storage whilst allowing it’s continued online access
• Supports long term access to infrequently accessed data for regulatory
requirements
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Hybrid Partitioned Tables
Q4_2018Q3_2018Q2_2018Q1_2018Q4_2017Q3_2017Q2_2017Q1_2017Q4_2016
ORDERS
OBJECT STORAGE
TABLE PARTITIONED BY QUARTER
SQL HOT DATACOLD DATA
UPDATES

Multitenant
• Container managed database virtualization
• Manage Many as one
• Patching, Backup, Security, Online Cloning, Online
Relocation
• Software as Service
• Shared metadata, Data location transparency
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New in 12.2, 18c, 19c
• 12.2
• Online cloning & relocation
• Incremental refresh of test/dev master
• Application containers
• 18c
• Transportable backups
• Snapshot carousel
• Refreshable PDB switchover
• 19c
• RAT and ADDM at PDB level

Security
• Security In-Depth
• Access Controls, Encryption, Redaction, Masking, Auditing,
SQL Firewalls
• Key Vault
• Audit Vault Database Firewall
• Security Assessment Tool
37
Active Directory
• 12.2
• Online encryption
• 18c
• Integration with Active Directory
• Password-less schema creation
• 19c
• Schema-only Oracle accounts
• Database Vault Operations Control
New in 12.2, 18c, 19c

Small Change
Small but important…
38

EZConnect Improvements
• Simplification of Easy Connect syntax
• Easy Connect adaptor will now accept a list of name value pairs
– For example: SDU, RETRY_COUNT, CONNECT_TIMEOUT, etc.)
• Will now enable multiple hosts/ports in the connect string
– Typically used in load-balancing client connections.
Oracle Confidential – Internal39
$> sqlplus soe/soe@(DESCRIPTION=
(ADDRESS_LIST=
(LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL=tcp)(HOST=salesserver1)(PORT=1522))
(ADDRESS=(PROTOCOL=tcp)(HOST=salesserver2)(PORT=1522))
(ADDRESS=(PROTOCOL=tcp)(HOST=salesserver3)(PORT=1522)))
(CONNECT_DATA=(SERVICE_NAME=sales.us.example.com)))
$> sqlplus soe/soe@//salesserver1,salesserver2,salesserver3:1522/sales.us.example.com$> sqlplus soe/soe@(DESCRIPTION=
(retry_count=3) (connect_timeout=60)(transport_connect_timeout=30)
(ADDRESS=(PROTOCOL=tcp)(HOST=salesserver1)(PORT=1521))
(CONNECT_DATA=(SERVICE_NAME=sales.us.example.com)))
$> sqlplus soe/soe@//salesserver1:1521/sales.us.example.com?connect_timeout=60&
transport_connect_timeout=30&retry_count=3

•Free to use
• Includes most EE features
– no RAC, Data Guard, GoldenGate
• No support
• Resource limited:
– 2 CPUs for foreground processes
– 2 GB memory (SGA + PGA)
– 12 GB user data
– 3 PDBs
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Oracle Database XE
https://www.oracle.com/database/technologies/appdev/xe.html

New Install Approaches
• Oracle Database 19c RPM Install
– Yum install of Oracle Instant Clients
• Oracle Read Only Homes
• No click through client software
install
• Oracle Docker images
41

SQLDeveloper Web
• Browser based IDE for Oracle
database development
• Allows developers to run SQL
statements and build scripts
• Build diagrams using the Data
Modeler
• Use Real Time SQL Monitor to
analyse SQL

Oracle Data REST Services (ORDS)
• ORDS provides REST services for both
application development and
administration
• In ORDS 19.1 we now provide REST
endpoints to enable the management and
monitoring of the Oracle Database
– General, Data Dictionary, Monitoring,
Performance, & PDB Lifecycle Management
Additional end points to be rolled out in
future updates
43Confidential - Oracle Internal Only

Database Features – New App
• Database feature app
– Part of Oracle Documentation
– Compare releases & interactively
view new features
https://apex.oracle.com/database
-features/
44Confidential - Oracle Internal Only

livesql.oracle.com is now running Oracle Database 19c
• Oracle Database 19c
• Free access
• Run SQL scripts
• Run Tutorials
• Share Scripts
45

Summary
• Oracle Database 19c is now
production and available on
premises
• Oracle Database 19c offers an
extended support window
making it an excellent choice for
current and future upgrade
plans
• Focus on long term stability
46

Oracle Database 19c - poslední z rodiny 12.2 a co přináší nového

Oracle Database 19c - poslední z rodiny 12.2 a co přináší nového

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Oracle Database 19c - poslední z rodiny 12.2 a co přináší nového