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Updated 1 week ago · Independent Analysis
Oracle Database 23ai vs PostgreSQL
Capability Overview
Oracle Database 23aivs PostgreSQL
4.4G2
Only in Oracle Database 23ai
- ✦ AI Vector Search
- ✦ SQL & PL/SQL
- ✦ Real Application Clusters (RAC)
✓ Free planFortune 500 users · est. 1979
PostgreSQLvs Oracle Database 23ai
4.4G2
Only in PostgreSQL
- ✦ ACID Transactions
- ✦ Advanced SQL
- ✦ JSON/JSONB Support
✓ Free planMost popular users · est. 1996
Quick VerdictIndependent Analysis
Oracle Database 23ai and PostgreSQL are both Databases tools. Compare features, pricing, and ratings below to find the best fit for your team.
When to Choose Oracle Database 23ai vs PostgreSQL
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
PostgreSQL Unique Strength
JSONB Indexing for Flexible Schema Without NoSQL Migration
PostgreSQL's JSONB with GIN indexes stores semi-structured data in relational tables and queries nested keys at under 5ms, avoiding a full NoSQL migration for use cases that need occasional schema flexibility.
→ Choose PostgreSQL if this scenario applies to you. Oracle Database 23ai doesn't offer a comparable solution.
PostgreSQL Unique Strength
Table Partitioning Cuts Time-Series Query Time by 90%
Declarative partitioning splits large time-series tables into monthly partitions, cutting query scan time by 90% for date-range queries that previously scanned billions of rows.
→ Choose PostgreSQL if this scenario applies to you. Oracle Database 23ai doesn't offer a comparable solution.
PostgreSQL Unique Strength
Logical Replication for Zero-Downtime Migration
Logical replication syncs a live production database to a new instance in real time, enabling a migration cutover measured in seconds rather than the hours a pg_dump/restore requires.
→ Choose PostgreSQL if this scenario applies to you. Oracle Database 23ai doesn't offer a comparable solution.
Pricing Comparison & PlansHigh· Verified May 30, 2026
Oracle Database 23ai Plans
Free tier available
Oracle Database Free
FreeBest for: Ideal for developers and small projects to explore features without cost
- ✓Development and evaluation
- ✓AI Vector Search prototyping
View on vendor site
MOST POPULARStandard Edition 2
Contact SalesBest for: Suitable for small to medium businesses needing a robust database solution
- ✓Base database functionality
- ✓Suitable for mid-market organizations
View on vendor site
Enterprise Edition
Contact SalesBest for: Designed for large enterprises requiring maximum performance, scalability, and advanced features
- ✓AI Vector Search included
- ✓Spatial and Graph included
- ✓Three pluggable databases included
- ✓Advanced security
- ✓Advanced compression
View on vendor site
Autonomous Database
Contact SalesBest for: Offers a self-driving, self-securing, and self-repairing database for mission-critical workloads
- ✓Autonomous AI Transaction Processing
- ✓Autonomous AI Lakehouse
- ✓Autonomous AI JSON Database
- ✓Oracle APEX included
- ✓Bring Your Own License (BYOL) option available
View on vendor site
PostgreSQL Plans
Free tier available
Capability Breakdown
3 differences found across 10 standardized features
Feature
Oracle Database 23ai
PostgreSQL
Horizontal Scaling
✓
✗
Open Source
✗
✓
Multi-Model
✓
✗
Total (raw)
20
20
Oracle Database 23ai Features
- •AI Vector Search
- •SQL & PL/SQL
- •Real Application Clusters (RAC)
- •Multitenant Architecture
- •In-Memory Option
- •Advanced Compression
- •Transparent Data Encryption
- •Data Guard (HA)
- •GoldenGate (CDC)
- •Blockchain Tables
- •JSON Relational Duality Views
- •Spatial & Graph
- •Oracle Autonomous Database
- •Exadata Integration
- •Parallel Execution
- •Partitioning
- •REST API
- •SDK
- •CLI
- •Connection Pooling
PostgreSQL Features
- •ACID Transactions
- •Advanced SQL
- •JSON/JSONB Support
- •Full-Text Search
- •Table Partitioning
- •Foreign Data Wrappers
- •Logical Replication
- •Point-in-Time Recovery
- •Row-Level Security
- •Extensions (pgvector, PostGIS, TimescaleDB)
- •Parallel Queries
- •Window Functions
- •MVCC Architecture
- •Stored Procedures (PL/pgSQL)
- •Streaming Replication
- •Materialized Views
- •REST API
- •SDK
- •CLI
- •Connection Pooling
Strengths & Limitations
Evaluative strengths and weaknesses: not feature lists
Pros
- +45+ year track record in mission-critical enterprise deployments
- +Built-in AI vector search in 23ai
- +RAC clustering for extreme high availability
- +Most feature-complete enterprise SQL database
Cons
- −I am not directly involved in the pricing case of WebLogic, as the other team is looking at budgeting and costing.
- −Oracle Database needs improvement in data analytics capabilities, AI involvement, machine learning, and deep learning.
- −Areas of Oracle Database that have room for improvement include the license policy.
- −The dashboard is not user-friendly, and I would like to see it improved.
- −Regarding room for improvement, there is not anything specific from a feature standpoint, as Oracle is a database company always e
Pros
- +Extensible architecture supports GIS, time-series, and vector data
- +ACID compliance and MVCC ensure high data integrity and concurrency
- +Advanced indexing (GIN, GiST, BRIN) accelerates complex queries
- +Rich data types including native JSONB, arrays, and range types
- +Mature, battle-tested reliability for mission-critical applications
Cons
- −Requires manual tuning for high-throughput, write-heavy workloads
- −Connection management can be resource-intensive at massive scale
- −No built-in horizontal scaling; requires third-party solutions
- −Vacuuming process can cause performance overhead on busy tables
- −Replication setup is more complex than some modern distributed DBs
At a Glance
User Rating
4.4/5vs4.4/5
Oracle Database 23ai
PostgreSQL
Starting Price
Free tiervsPay-per-use
Oracle Database 23ai
PostgreSQL
Feature Count
20 featuresvs20 features
Oracle Database 23ai
PostgreSQL
User Base
500vs0
Oracle Database 23ai
▲
PostgreSQL
Oracle Database 23ai · Price & Data SyncLast verified: May 30, 2026 · CE-DB-2026W22-3353AD · ✓ Pricing updated May 30, 2026
PostgreSQL · Price & Data SyncLast verified: May 21, 2026 · CE-DB-2026W22-D9B048 · No changes detected
Recent Price History
Oracle Database 23ai
Oracle Database 23ai removed the "Standard Edition 2 (SE2)" plan
Plan removed · May 30, 2026
Oracle Database 23ai
Oracle Database 23ai added a new "Standard Edition 2" plan (Custom pricing)
Plan added · May 30, 2026
Oracle Database 23ai
Oracle Database 23ai removed the "Autonomous DB" plan
Plan removed · May 21, 2026
Oracle Database 23ai
Oracle Database 23ai removed the "Enterprise" plan
Plan removed · May 21, 2026
Oracle Database 23ai
Oracle Database 23ai removed the "Oracle Free" plan
Plan removed · May 21, 2026
Frequently Asked Questions
Related Comparisons
Oracle Database 23aiFree plan
PostgreSQLFree planSources & Data Trail · Oracle Database 23ai
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-05-30)
- 2.Official Website·Official vendor website
- 3.TrustRadius·TrustRadius verified reviews
- 4.PeerSpot·PeerSpot enterprise peer reviews
Sources & Data Trail · PostgreSQL
- 1.Official Website·Official vendor website
- 2.G2·G2 verified reviews · 4.4/5 · 678 reviews
- 3.Capterra·Capterra verified reviews · 4.7/5
- 4.TrustRadius·TrustRadius verified reviews
- 5.PeerSpot·PeerSpot enterprise peer reviews