Oracle® Database Migration to EDB Postgres - DASEQ · PDF fileOracle® Database Migration to EDB Postgres Sandra Wiecki, Director Product Marketing ... products/postgres-plus-advanced-server

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Oracle® Database Migration to EDB Postgres Sandra Wiecki, Director Product Marketing


EDB Postgres Platform


Database Compatibility for Oracle® •  PL/SQL •  OCI support

•  Stored procedures •  Function packages •  SQL Syntax

•  System catalog

EDB Postgres Advanced Server

! Easier migrations ! Preserve your investment


Collect and analyze both database server and application info.

PRE-ASSESSMENT DESIGN, BUILD & RUN MIGRATION ASSESSMENT

Access Schema

Analyze using tools

Identify dependencies, incompatibilities, and workarounds

Further analysis where required (developer access may be required)

Document migration plan

Service-based plan implementation with a central consultant overseeing delivery

Technical training

Technical Account Manger

Periodic Architectural Health Checks (AHC)

Database Migration Project Phases

Presales Professional Services engagement




Access Schema

Analyze using tools





Technical training








Access Schema

Analyze using tools





Technical training








Access Schema

Analyze using tools





Technical training






Customer Input

Technical questionnaire for each candidate

Availability for follow-up questions

Analysis of responses

Follow-up questions

Identification of Oracle features, which require additional investigation

Initial triage of databases

Identification of duplicate schemas and schema dependencies

Estimation of Migration Assessment work

Pre-Assessment Phase

Key Staff:

Presales & Consultants

EDB Input Output

Key Staff:

DBAs


Database schema: •  data-less dump or •  access via SSH / VPN Application team access

Detailed analysis of schema (approx. 3-5 days per schema)

Follow-up questions

Migration assessment documentation: •  issues •  solutions •  high-level deployment

plan

Migration Assessment Phase

Customer Input EDB Input Output

Key Staff: DBAs, application team

Key Staff: Consultants


Design, Build, Run

Senior Consultant focused on design

Consultants implementing test & production systems

Technical Account Manager

Technical Training

Architectural Health Checks

Design Transition Operation


Design, Build, Run Transition

Migration Load Map Create Schema Migration Data Move Stored Procedures View Migration Trigger Migration Document Code Issues

Testing Unit Testing Execution Sanity Testing System Testing Integration & Functional Performance Tuning Acceptance Testing QA Acceptance

Packaging Generate Maint. Scripts Test Maint. Scripts Generate Install Scripts Test Install Scripts Documentation

Delivery Execution Post Migration Support

Design Transition Operation


•  Designated Postgres technical resource •  Working closely with your IT organization •  Take advantage of EDB features and functionality

•  Support escalations and advocacy •  Roadmap development and visibility •  Quarterly visits

•  Semi-dedicated resource

Technical Account Manager (TAM)


•  Comprehensive certification: −  EDB Postgres Associate Certification (5 days) −  EDB Postgres Professional Certification (+3 days)

•  Available: −  In person −  Online −  On-Demand

Technical Training


•  Identifies: −  Short-term opportunities −  Strategic & Tactical opportunities

•  Checking: −  Operating system −  Hardware configuration −  Database settings −  Backup strategies −  General database practices −  Upgrade requirements −  High Availability options

•  Enables better strategic decision-making going forward

Architectural Health Check


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 −  Profiles for Passwords


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

•  Custom constructor methods for Objects

•  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_SESSION −  DBMS_SQL −  DBMS_UTILITY

•  Package Support for: −  UTL_HTTP for web server communications −  UTL_URL −  UTL_TCP −  UTL_FILE −  UTL_MAIL −  UTL_RAW −  UTL_SMTP −  UTL_ENCODE


Database Comparison: Oracle and EDB Postgres http://www.enterprisedb.com/database-comparison-oracle-and-edb-postgres

Blog: Comparing EDB Postgres and Oracle http://www.enterprisedb.com/postgres-plus-edb-blog/gary-carter/comparing-edb-postgres-and-oracle

EDB Postgres Advanced Server http://www.enterprisedb.com/products-services-training/products/postgres-plus-advanced-server

Resources

Documents

Oracle® Database Migration to EDB Postgres - DASEQ · PDF fileOracle® Database Migration to EDB Postgres Sandra Wiecki, Director Product Marketing ... products/postgres-plus-advanced-server