Content
ARRAY_AGG in PostgreSQL - Examples & AI Generator
ARRAY_AGG in PostgreSQL - Examples & AI Generator
ARRAY_AGG in PostgreSQL lets you aggregate values from multiple rows into an array, enabling concise, compact data retrieval—no manual joins or subqueries needed. However, remembering the exact PostgreSQL ARRAY_AGG syntax can slow you down, especially when deadlines are tight or you're working across databases. AI2sql solves this by generating production-ready ARRAY_AGG queries instantly from plain English, with no coding required. Stop memorizing syntax and focus on insights—AI2sql supports 50,000+ users in 80+ countries with instant SQL generation tailored for PostgreSQL.
ARRAY_AGG Syntax in PostgreSQL
Basic Syntax
- expression: The column or value to aggregate. - ORDER BY: (Optional) Specifies the order of array elements.
PostgreSQL-Specific Notes
ARRAY_AGG returns an array data type, unique to PostgreSQL compared to databases like MySQL or SQL Server.
ORDER BY clause inside ARRAY_AGG is supported for ordered arrays.
ARRAY_AGG Examples You Can Generate Instantly
Copy, paste, or generate equivalent queries in 10 seconds with AI2sql—no coding skills needed. Business-ready scenarios below:
1. Group Customer Emails by Country
Result: Get each country with an array of its customers' emails.
2. List Products Ordered in Each Order (Sorted by Name)
Result: Returns each order with a sorted array of product names.
3. Aggregate Order Dates for Each Customer
Result: Shows each customer with all their order dates as an array.
Generate ARRAY_AGG queries in 10 seconds with AI2sql.
Why Use AI2sql Instead of Manual ARRAY_AGG Coding
Save time: No more searching documentation for PostgreSQL ARRAY_AGG syntax—get instant results.
Reduce errors: AI2sql produces production-ready code, minimizing costly mistakes.
Focus on insights: Skip repetitive coding and turn natural language into optimized SQL in seconds.
Trusted by 50,000+ users in 80+ countries.
Frequently Asked Questions
What does ARRAY_AGG do in PostgreSQL?
ARRAY_AGG aggregates column values into a PostgreSQL array, enabling complex analytics and reporting in a single step.
Can I use ORDER BY inside ARRAY_AGG in PostgreSQL?
Yes, you can sort elements within each group using ORDER BY inside ARRAY_AGG.
What's the fastest way to generate ARRAY_AGG queries?
Use AI2sql’s AI SQL generator for instant, high-quality ARRAY_AGG queries with no coding required.
Takeaway: Don’t get stuck on PostgreSQL ARRAY_AGG syntax. Use AI2sql to generate your first query now and experience 10-second, no-code SQL creation.
Try AI2sql Generator
Learn ARRAY_AGG
Share this
More Articles

GUIDE
Is SQL Easier Than Python? A Practical Comparison for Data Beginners
May 29, 2025

GUIDE
Is SQL Easy to Learn? A Beginner’s Guide to Getting Started
May 29, 2025

GUIDE
Can I Learn SQL in 7 Days? A Step-by-Step Guide for Beginners
May 29, 2025

GUIDE
Is SQL Like Excel? Understanding the Key Differences and How AI2sql Bridges the Gap
May 29, 2025

GUIDE
What is SQL and Why is it Used? A Beginner’s Guide
May 29, 2025