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Master SQL ILIKE: The Ultimate Guide to Case-Insensitive Pattern Matching

"In database management and backend development, locating specific text patterns is one of the most common tasks you will encounter. Whether you are building an e-commerce search bar, filtering user logs, or generating analytical reports, you need a reliable way to query text data. While standard SQL provides the LIKE operator for pattern matching, it comes with a major limitation: it is strictly case-sensitive. This is where the PostgreSQL ILIKE operator becomes an invaluable tool for developers. The ILIKE operator is a custom PostgreSQL extension designed to perform case-insensitive pattern matching. Unlike standard SQL, which treats "Apple"..."

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