According to Gartner, organizations can reduce their database spend by up to 80% by deploying EDB Postgres in place of traditional database solutions like Oracle. Nevertheless, the perceived risks associated with migrating from Oracle to an open source-based alternative prevents many organizations from trying. Review this presentation to learn some of EDB Postgres Enterprise’s more important features and techniques employed to reduce migration risk. This presentation will be valuable to organizations researching Postgres, as well as current Oracle customers considering migrating to an open source-based database management system such as EDB Postgres. It highlights key points for both business and technical decision-makers and influencers.

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Reducing the Risks of Moving Off Oracle
EDB Postgres Enterprise reduces risks… Raises…

2. © Copyright EnterpriseDB Corporation, 2016. All Rights Reserved. 2 Company Confidential.
…you could use your Oracle® skills
without using Oracle?
…you could keep your investments in
PL/SQL and not use Oracle?
…you could do both and save money?
What if…

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But wait, change is not without risks!
Re-training
Risks
Technical
Risks
RISK
e g
r
a
t
io
n
I
n
t

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Reducing the Risk of Change
Technical
Data Compatibility
Code Compatibility
Tools for Mission-
critical apps
Re-Training
Compatible
Developer features:
PL/SQL
DBA features:
Workload Mgr &
Diagnostics,
Compatible tools:
SQL*Plus,
SQL*Loader
Integration
Replicate to and
from Oracle
XA Resource
Manager
Data Adapters
Wrappers for
External DBs
Cost
Savings
Cap core license
quantities
Reduce core
licenses
Eliminate core
licenses
EDB Postgres Enterprise reduces risks… and raises…

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EDB Migration Toolkit
Migration Toolkit converts Oracle database objects to
Advanced Server objects
Data Compatibility
- Data types: all data including Blobs, Clobs and Object types…
- Meta data like: schemas, tables, indexes, views, partitions, roles…
- Code: triggers, stored procedures, users, roles, database links …

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Advanced Server executes PL/SQL Stored Procedures, Triggers, Packages and
understands extensions like DUAL, Rownum, Decode, NVL(2) and Substr().
Code Compatibility – PL/SQL
Emulation
Translation
Layer on PL/pgSQL
Compiler ✔
Interpreter ✔
Debugger ✔

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my_program.pgc
ecpgPlus pre-
compiler
C compiler
Linker
ecpgPlus (Pro*C support)
Code Compatibility – Pro*C
ecpglib
other libraries
my_progam.o
my_program.c
my_program
Supports:
• Oracle Dynamic
SQL
• Pro*C compatible
anonymous
blocks, and
• Oracle-compatible
CALL statement

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Open Client Library - OCL (OCI support)
Code Compatibility - OCI
Application
Programs
Oracle’s OCI-Lib
Published API
UPI
Wire Protocols
Oracle® Call Interface stack
Application
Programs
Open Client Library
OCI Compatible API
libpq
Wire Protocols
EDB’s Open Client Library
Same Apps

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Enterprise Manager
(Monitor, Alert, Manage
& Tune)
Active Data Guard
features: Failover and
Hot Standby Reads
Tools for Mission-critical Apps
Failover server in Hot
Standby mode also allows
READ access

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…database compatibility for Oracle is compatible with:
10
EDB Postgres Enterprise…
Your technology
Minimal
Application
re-writes

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Compatibility for Developers
Query Hints Packages
- UTL_ENCODE
- UTL_FILE
- UTL_HTTP
- UTL_MAIL
- UTL_SMTP
- UTL_URL
- Custom
- DBMS_ALERT
- DBMS_CRYPTO
- DBMS_JOB
- DBMS_LOB
- DBMS_LOCK
- DBMS_OUTPUT
- DBMS_PIPE
- DBMS_PROFILER
- DBMS_SCHEDULER
- DBMS_SQL
- DBMS_RANDOM
- DBMS_RLS
- DBMS_UTILITY
- Default Optimizer Hints
- Access Method Hints
- Join Order Hints
- Join Relation Hints
- Global Hints
- Append Hints

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Virtual Private Database
implemented using a package
compatible with Oracle’s
DBMS_RLS (row level security)
Compatibility for Developers

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Resource Manager (CPU &
I/O resource allocation)
Compatibility for DBAs
Password Profiles

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DRITA (Dynamic Runtime
Instrumentation Tools Architecture)
working with Wait events …
Compatibility for DBAs
• Functions
− get_snaps()
− sys_rpt()
− sess_rpt()
− sessid_rpt()
− sesshist_rpt()
− purgesnap()
− truncsnap()
• Statspack-like AWR Reports
− edbreport()
− stat_db_rpt()
− stat_tables_rpt()
− statio_tables_rpt()
− stat_indexes_rpt()
− statio_indexes_rpt()
− edb$system_waits
− edb$session_waits
− edb$session_wait_history
• Catalog Views
− edb$system_waits
− edb$session_waits
− edb$session_wait_history
− ~50 Dictionary Views

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Compatibility for Developers and DBAs
• EDB*Plus • EDB*Loader

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…database compatibility for Oracle is compatible with:
16
EDB Postgres Enterprise…
Your technology Your people
No Application
re-writes
Minimal
re-training

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Replication with Oracle
TRANSACTION
REPLICATION
Queries Reports
POSTGRES PLUS
ADVANCED SERVER
TABLE
C
TABLE
D
ORACLE
Procs Objects
TABLE
A
TABLE
C
TABLE
B
TABLE
D
Improved
OLTP
Performance
Inexpensive
Query / Reporting

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XA 2-Phase Commit Support
Transaction Manager
(e.g. Tuxedo)
XA Resource
Manager in
Oracle
XA Resource
Manager in
Advanced Server
Phase 1
XA Resource
Manager in
Oracle
XA Resource
Manager in
Advanced Server
Phase 2
Transaction Manager
(e.g. Tuxedo)

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EDB Postgres Data Adapters
Read / Write
MySQL
Read / Write
MongoDB
Read / Write
Hive/HDFS
File / CSVODBC / JDBC
LDAP
Many others…
Twitter /
Facebook
EDB
Postgres
Advanced
Server

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…database compatibility for Oracle is compatible with:
20
EDB Postgres Enterprise…
Your technology Your people
No Application
re-writes
Minimal re-
training
Easy
Integration
Your business

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Strategy Risk Time Effort Benefits Savings
New Reporting
Applications
Low Fast Low
• Leverages existing Oracle reporting skills
• Proof point: Oracle alternative for reporting
• No new Oracle licenses
Low
Offload Reports
using Replication
Low Fast Med
• Leverages existing Oracle reporting skills
• Proof point: integration into Oracle infrastructure
• No new Oracle licenses
Low
New Transaction
Applications
Low
Application
Dependent
Low
• Leverages existing Oracle report & txn skills
• Proof point: viable option for txn processing
• No new Oracle licenses
Med
Old Applications
Due for Re-
writes / Updates
Med
Application
Dependent
Med
• Leverages existing Oracle skills and PL/SQL
• Proof point: retain PL/SQL investments
• Recycle existing Oracle licenses
Med
Migrate / Rewrite
non-mission
critical Apps
High
Application
Dependent
Med
• Leverages existing Oracle skills and PL/SQL
• Proof point:
• Significant cost savings
High
New mission
critical
applications
High
Application
Dependent
High
• Leverages existing Oracle skills
• Proof point: Postgres tools for HA, Management
• Dramatic cost savings
High
Adoption Strategies to Reduce Risk
EDB’s Migration Assessment Service helps you build a custom strategy to move off
Oracle that reduces your risk and maximizes your savings and success.

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…you could use your Oracle® skills
without using Oracle!
…you could keep your investments in
PL/SQL and not use Oracle!
…you could do both and save money!
What if… When will you…

23. © Copyright EnterpriseDB Corporation, 2016. All Rights Reserved. 23 Company Confidential.
Additional Resources…
• EDB Downloads:
− www.enterprisedb.com/downloads
• Case study: Clear Capital Shrinking Oracle Costs
− www.enterprisedb.com/clear-capital
• eBook comparing EDB Postgres Enterprise to Oracle
Enterprise Edition
− Email: gary.carter@enterprisedb.com