ILIKE in PostgreSQL - Examples & AI Generator

Mastering the ILIKE operator in PostgreSQL can trip up even seasoned SQL developers—its case-insensitive matching behaves differently from other databases. With variations in PostgreSQL ILIKE syntax, remembering the correct patterns for every situation can slow down your workflow. AI2sql eliminates these bottlenecks by instantly turning natural-language requests into production-ready ILIKE queries, helping you move from idea to query in just 10 seconds—no coding required.

ILIKE Syntax in PostgreSQL

Case-Insensitive Pattern Matching

In PostgreSQL, ILIKE works just like LIKE but ignores case. This is useful when searching for text regardless of capitalization.

• General Syntax:

SELECT column_name FROM table_name WHERE column_name ILIKE 'pattern';

• Wildcard %: Matches any sequence of characters.

• Wildcard _: Matches a single character.

ILIKE Examples You Can Generate Instantly

Copy-Paste Business-Ready Use Cases

• Find customers with emails containing 'gmail' (case-insensitive):

SELECT customer_id, email FROM customers WHERE email ILIKE '%gmail%';

• Search orders for product codes starting with 'ab' (any case):

SELECT order_id, product_code FROM orders WHERE product_code ILIKE 'ab%';

• Filter products where the description ends with 'discount' (ignoring case):

SELECT product_id, description FROM products WHERE description ILIKE '%discount';

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FAQ: ILIKE in PostgreSQL

• Q: What’s the difference between LIKE and ILIKE in PostgreSQL?
  A: ILIKE is case-insensitive, making it easier to match strings regardless of capitalization.

• Q: Can I use wildcards with ILIKE?
  A: Yes, use % for multiple characters, _ for a single character, just like with LIKE.

• Q: Does every SQL dialect support ILIKE?
  A: No, ILIKE is specific to PostgreSQL. Use AI2sql for compatibility across databases.

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