Oracle to PostgreSQL Migration Feasibility Assessment
Answer 8 questions to evaluate whether migrating from Oracle Database to PostgreSQL is technically feasible and commercially beneficial for your organisation.
3 Min
To Complete
8
Questions
Free
Assessment
Question 1 of 88 Questions
Question 1 of 8
🗄️
How many Oracle databases do you have that could be migration candidates?
Not all databases need to migrate at once. Start with the most suitable candidates.
1–5 databases
6–20 databases
21–50 databases
50+ databases
Question 2 of 8
🔧
How heavily do your applications use Oracle-specific features?
PL/SQL, Oracle-specific syntax, RAC, Partitioning, Advanced Queuing, and other proprietary features increase migration complexity.
Basic SQL only — minimal Oracle-specific features
Some PL/SQL and Oracle functions but limited
Significant PL/SQL, stored procedures, and Oracle features
Heavily dependent on Oracle-specific features (RAC, streams, etc.)
Question 3 of 8
📊
What is the size and performance requirement of your Oracle databases?
Very large databases or those with extreme performance requirements may face more challenges.
Small databases (under 100GB) with moderate performance needs
Medium databases (100GB–1TB) with standard performance
Large databases (1–10TB) with high performance requirements
Very large databases (10TB+) or extreme performance/availability needs
Question 4 of 8
👨💻
Does your team have PostgreSQL experience?
Migration success depends heavily on having PostgreSQL skills internally or accessible.
Strong PostgreSQL expertise on the team
Some experience with PostgreSQL
General database skills but no PostgreSQL experience
Limited DBA resources and no PostgreSQL experience
Question 5 of 8
🏗️
How many applications connect to the Oracle databases?
Each application may need testing and potentially code changes after migration.
1–3 applications per database
4–10 applications
10–30 applications
30+ applications or unknown
Question 6 of 8
💰
What is your annual Oracle Database licensing and support cost?
Higher costs create stronger business cases for migration. PostgreSQL has zero licence cost.
Under $200K per year
$200K–$1M per year
$1M–$5M per year
Over $5M per year
Question 7 of 8
📅
What is your target timeline for migration?
Realistic Oracle-to-PostgreSQL migrations typically take 6–24 months depending on complexity.
12–24 months — realistic planning
6–12 months — ambitious but possible
3–6 months — very aggressive
Under 3 months or no timeline defined
Question 8 of 8
🔒
What are your high availability and disaster recovery requirements?
PostgreSQL supports HA/DR but the architecture differs from Oracle RAC and Data Guard.
Standard HA — some downtime acceptable
High availability with automated failover needed
Near-zero downtime with cross-region DR
Mission-critical with zero data loss and instant failover
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