This presentation reviews the key methodologies that all the member of the team should consider such as: - How to prioritize the right application or project for your first Oracle - Tips to execute a well-defined, phased migration process to minimize risk and increase time to value - Handling the common concerns and pitfalls related to a migration project - What resources you can leverage before, during and after your migration - Suggestions on how you can achieve independence from an Oracle database – without sacrificing performance. Target audience: This presentation is intended for IT Decision-Makers and Leaders on the team involved in Database decisions and execution. For more information, please email sales@enterprisedb.com

1. © 2015 EnterpriseDB Corporation. All rights reserved. 1
Getting a Head Start: Migrating
Oracle to Postgres
To hear the recording of this presentation please visit Enterprisedb.com > Resources > Webcasts > On- Demand Webcasts

2. © 2015 EnterpriseDB Corporation. All rights reserved. 2
Agenda
• Company Overview
• Why Migrate?
• Finding the money to migrate
• How to get started
• Steps to Migrate
• How EnterpriseDB can help
• Summary
• Q&A

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Who is EDB?

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POSTGRES
innovation
ENTERPRISE
reliability
24/7
support
Services
& training
Enterprise-class
features, tools &
compatibility
Certifications
Product
road-map
Control
Thousands
of developers
Fast
development
cycles
Low cost
No vendor
lock-in
Advanced
features
Enabling commercial
adoption of Postgres

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Why Migrate?

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Is keeping the
“IT Lights” on
costing you
business and
your future?
Change the
“IT” Lights

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Little Money For
New Initiatives
Competitive
Disadvantage
$
t
$
Revenue
DBMS
Customer
Engagement

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Finding Money in IT
Relative Cost for IT Stack Components
Analytics
High Value
Invest for Brand
Mobile
Applications
Middle-ware
$ Database Bloat $
Virtual Machine
Operating System
Commodity
Rationalize for Stability

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Finding Money in IT
35% 80% 70 %
Software Infrastructure
Budget on DBMS (1)
In House DBMS Apps
Candidates to Move Off
Expensive DBMS (2)
Cost Savings (3)
(1) Gartner, Forrester and EDB analysis
(2) The State of Open-Source RDBMS, 2015, Gartner, April 2015
(3) The State of Open-Source RDBMS, 2015, Gartner, April 2015; EDB analysis of customer experiences and market prices
+

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Getting Money in IT
Gartner: Relational OSDBMS has matured and today can be considered as a
standard infrastructure choice for a large majority for new enterprise applications.
2009
Figure 1
Relational Open-Source DBMS Maturity Evaluation, 2015
Source: Gartner (April 2015)
Figure 2
Relational Open-Source DBMS Maturity Evaluation,2015
Source: Gartner (April 2015)
2015
Open-Source DBMS
Commercial
Non-Mission Critical
Applications
Non-Mission Critical
Applications
Mission
Critical
Applications
Mission
Critical
Applications
Total Cost of
Ownership
Total Cost of
Ownership
DBMS
Functionality
DBMS
Functionality
DBA
Tools
DBA
Tools
Availability
of DBA Resources
Availability of DBA
Resources

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t
Transform
DBMS
Revenue
DBMS
Customer
Engagement
Revenue
DBMS
Customer
Engagement
$
t
$ $
$
Transform
You Have The Money!

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The Key to Unlocking the Money:
Postgres Plus Advanced Server

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Security
Tools
Performance
Compatibility
ADVANCED SERVER
POSTGRES
PLUS

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Database Compatibility with Oracle®
Compatible with:
Your BusinessYour AppsYour People
Everything works
On EDB Postgres
Applications
Running on Oracle
Oracle
Developers

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Database Compatibility for Oracle includes:
• SQL extension support
− Decode, NVL, Substr, NVL2
− Date/time functions: add_months, extract,
next_day
• PL/SQL support
− REF Cursors, Implicit and explicit cursors
− Looping, variable declarations, conditional
statements
− Collections: Associative Arrays, Varrays,
Nested tables
− Bulk binding
− Named parameters
− User Defined Exceptions
− Explicit Transaction Control
− within a stored procedure
• Tools
− EDB*Plus – SQL*Plus look-a-like
− EDB*Loader – SQL*Loader equivalent
− EDB*Wrap – similar to the PL/SQL wrapper
• Features
− Packages
− Stored procedures
− Functions
− Triggers
− Hints
− Database Links
− Hierarchical Queries
− Synonyms – Public and Private
− Sequences
− Rownum
− Object types
− Create type … as object
− Create type … as table
− Create type …as varray
− Constructor and collection methods
− Users/Roles
− Dynamic SQL

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Database Compatibility (cont.)
• Data Types
− Integer, number, char, double precision,
float, varchar2, blob, clob, xmltype, rowid
• Oracle-like Data Dictionary
− ALL_, DBA_, USER_ views
− Most commonly accessed views
• Diagnostics - DRITA
− System and session waits
− Not exposed in PostgreSQL
− Part of Advanced Server
− Statspack-like reporting
• Support for Functions:
− REGEXP_INSTR
− REGEXP_COUNT
− REGEXP_SUBSTR
• Oracle compatible partitioning syntax
• Oracle compatible Materialized Views
© 2013 EnterpriseDB. All rights reserved.
• Package Support for:
− DBMS_ALERT
− DBMS_CRYPTO
− DBMS_JOB
− DBMS_LOB
− DBMS_LOCK.sleep
− DBMS_MVIEW
− DBMS_OUTPUT
− DBMS_PIPE
− DBMS_PROFILER
− DBMS_RANDOM
− DBMS_RLS
− DBMS_SCHEDULER
− DBMS_SQL
− DBMS_UTILITY
• Package Support for:
− UTL_HTTP for web server communications
− UTL_URL
− UTL_TCP
− UTL_FILE
− UTL_MAIL
− UTL_SMTP
− UTL_ENCODE

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EDBMigration Toolkit

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Postgres Plus Deployment Strategies
Strategy Benefits
New LOB Applications
• Significant cost savings for non mission critical
systems
• Leverages all existing Oracle skills
• Very low risk
Oracle Replication
Server
• Significant cost savings
• Leverages Postgres Plus Replication Server
• Leverages all existing Oracle skills
• Improves transaction and query performance
Migrate / Rewrite non-
Mission Critical Apps
• Significant cost savings
• Leverages all existing Oracle skills
• Very low risk
Migrate / Rewrite Mission
Critical Apps
• Biggest cost savings
• Leverages all existing Oracle skills
• Greatest deployment flexibility

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How to get started

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Applications Inventory
Apps of
Innovation
20% of all Apps
Application of Differentiation
60% of all Apps
Application of Record
20% of all Apps
Initial Target:
50 Custom Apps
Web & Mobile
Custom Apps
Custom Apps
Oracle, SAP,
MS Prop. Apps
ISV Apps

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Staged Application Migration Process
50 Apps
Pool
Days/App
# of Apps
Net Savings
3yr (Net) ROI
50% 30% 20%
20 Days 40 Days 60 Days
25 Apps 15 Apps 10 Apps
$3.7 Million $2.0 Million $1.2 Million
140% 109% 84%

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Iterative and Agile Motion Approach
Find the Sweet Spot
Prioritize and
Plan Migration
Build the Team
Migrate Deploy

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Steps to Migrate

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Steps to Migrate
• Prepare Environment
− Obtain and install necessary software
− Establish connectivity between systems
− Copy the Oracle JDBC jar file to jre/lib/ext directory in Postgres Plus Advanced
Server Installation
• Migrate Schema
− Use Migration Toolkit in schema only mode
− Resolve issues here before going to next phase
• Migrate Data
− Use command line MTK
− Use –copyViaDBLinkOra
− Uses OCI to connect to Oracle
− Use parallel threads
− Use dblink_ora_copy function directly to bypass logging
− Export Oracle data to flat files, load using EDB*Loader

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Steps to Migrate con’t
25
• Port Application
− Change connection information
− Recompile /Link application (OCI or Pro*C)
• Test
− Verify application functionality
− Address issues
− Test performance
− Tune
• Integration
− Establish co-existence strategy
− Setup database links to other databases
− Setup replication between Oracle or SQL Server and Postgres
Plus Advanced Server
• Rollout
− System becomes production

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How EDB can help

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EDB can help you unlock money in
your IT stack to enable you to
innovate and compete

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Build a Migration Baseline
Migration Services
Migration
Opportunity
Assessment
Migration
Assessments
Migration Plans
Training Classes Migration
Assistance

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Applications Inventory
$5B company – Example
• 100 - 150 total applications
inventory
• 60 - 90 Apps are Custom
Apps
Custom application footprint
• 2 dual socket, quad core
servers
• 16 cores
• 16 cores/app x ~ 50apps
= 800 cores
Apps of
Innovation
20% of all Apps
Application of Differentiation
60% of all Apps
Application of Record
20% of all Apps
Initial Target: 50 Apps
Web & Mobile
Custom Apps
Custom Apps
Oracle, SAP,
MS Prop. Apps
ISV Apps

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Database Migration Assessment
30
Oracle
1. Analyze Oracle schema layout for
supported features in PPAS
2. Review features used in Oracle
client application
3. Supported features and recommended fixes
Difficult Easy
4. Overall composite score and migration plan
with workarounds and time estimates

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EDB Postgres Deployment Services
Postgres
Eval
Support
Kit
Postgres
Kick Start
• w. Developer
Subscription
Postgres
Team
Success
Postgres
Team
Success
• w. RDBA
Postgres
Enterprise
Enablement
• w. RDBA
SolutionCost
Postgres Deployment
Pre-Deployment Post-Deployment

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Global Training Services
• Online
− Live and interactive training delivered to remote participants by trained EDB
personnel (or a contractor)
− 1-5 days
− Scheduled in advance; schedules are published at EnterpriseDB.com
• On-Demand
− Pre-recorded training sessions
− 4-14 hours
− Available at EnterpriseDB.com
• Off-site Open Enrollment
− Marketed, sold and delivered by EDB Certified Training Partner
− Currently available in EMEA and Asean
• Onsite
− Delivered at the customer site by EDB
trained personnel
− Marketed and sold by EDB or EDB Partner (licenses EDB materials)
− 1-5 days scheduled as needed

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Summary
• Migrations are no longer impossible
• Compatibility provides
− Lower cost of migrations
− Shorter migration timelines
− Lower risk (you can always go back)
• EnterpriseDB provides
− Oracle compatibility
− Automated tools to migrate from Oracle
− And others: MySQL, Sybase, SQL Server (data & schema)
• Migration Expertise for:
− Planning
− Performing migration
− Testing
− Rollout
http://www.enterprisedb.com/solutions/oracle-compatibility

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