Migrating from legacy Database to Postgres

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This document discusses migrating from a legacy database to Postgres. It notes that 35% of software budgets are spent on database management systems, 80% of in-house applications are candidates to move off expensive databases, and migrating can result in 70% cost savings. The advantages of Postgres include database compatibility with Oracle, proven performance, enterprise-class support, and being cloud ready. The steps to migrate include assessing the database, preparing the environment, migrating data and objects, porting applications, testing, integrating, and rolling out to production. Migrating allows leveraging existing skills while gaining benefits like agility, cost savings, and flexibility.

Technology

Migrating from Legacy Database to
Postgres: How, Why and its Advantages
By – Kaustubh Patwardhan (KP)
Director - SEA and HK, Ashnik

CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
WHY Migrate

Digital represents challenge for some,
OPPORTUNITY FOR OTHERS.
With new digital initiatives on the scene,
players will fall on both sides of the fence.
The digital business revolution is
radically transforming
the marketplace...

4
Finding Money in IT
35% 80% 70%
Software Infrastructure
Budget on DBMS1
In House DBMS Apps
Candidates to Move Off
Expensive DBMS2
Cost Savings3
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
CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.

5CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
BUSINESS AGILITY

CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
WHY Postgres

Database Compatibility with Oracle®
Everything works
On EDB Postgres
Applications
Running on Oracle
Oracle
Developers
Your BusinessYour AppsYour People
Compatible with:
CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.

8
Why EDB Postgres? - Customer Benefits
Proven
Performance
Cost Enterprise-Class
Support
Cloud Ready
CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.

CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
EDB Postgres Platform

CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
How to Migrate

Steps to Migrate
CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
1. Database Assessment
2. Prepare Environment
3. Migrate Database Objects and Data
4. Port Application
5. Test
6. Integrate
7. Rollout

STEP 1: DB Migration Assessment
12
• Schema Discovery
• DB Analysis
• Scoring
• App Selection
• Success & Savings

© Copyright EnterpriseDB Corporation, 2017. All Rights Reserved.
STEPS 2 & 3: Prepare Environment
& Migrate Database Objects and Data
EDB POSTGRES MIGRATION TOOLKIT

STEP 4: Port Application
 Change connection information (Readily available EDB drivers based on your application need )
 Recompile/Link application(OCI or Pro*C) (EDB ECPG Plus)
STEP 5: Test
 Verify Application Functionality (Monitoring with EDB PEM and EDB advance auditing)
 Test Performance (Monitoring and analysing current and history Database and system data with PEM)
 Tune (EDB SQL profiler)
STEP 6: Integrate
 Establish co-existence strategy (FDW to connect with foreign system)
 Setup replication between Oracle or SQL Server and EDB Postgres Advance Server (Hydride
replication using EDB replication Server)
STEP 7: Rollout
 System Becomes Production.

EDB POSTGRES SOLUTION USE CASES –
Approach to migrate
CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.
NEW APPLICATIONS:
DevOps, schema-less rapid development, and multiple programming language support
APPLICATION MODERNIZATION:
Multi-model flexibility and integration with popular data sources
REPLACEMENT OF LEGACY DBMS:
Compatibility with Oracle leverages existing DBA and Developer skills
CLOUD REPLATFORMING:
Flexible deployment options and simple business terms

Ashnik – Value Proposition
16
Value based
subscription model
Insight based
consulting
Need based
Training
Outcome based
managed services
Peace of Mind in Open
Source Technology
Adoption
CONFIDENTIAL
© 2011 EnterpriseDB. All rights reserved.

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