Which LIKE predicate can use a standard B-tree index in most engines?

Problem Statement

Explanation

A leading wildcard breaks the ability to seek from the left, so the index is not used. A prefix search like 'son%' can seek to the prefix range. If you need case-insensitive search, consider functional indexes or citext/GIN features where available.

Code Solution

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SELECT * FROM people WHERE name LIKE 'son%';

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Indexes & Query Performance Essentials

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Which LIKE predicate can use a standard B-tree index in most engines?

Problem Statement

Explanation

Code Solution

Practice Sets

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Which SQL statement retrieves all columns and rows from a table named employees?

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More from SQL & Databases

Master Interviews Anywhere, Anytime

Which LIKE predicate can use a standard B-tree index in most engines?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which SQL statement retrieves all columns and rows from a table named employees?

Which clause filters rows before aggregation and affects which rows are grouped?

What is the default sort order when ORDER BY is used without ASC or DESC?

Which construct is commonly used to paginate results in SQL engines like Postgres and MySQL?

Which predicate correctly checks for missing values in standard SQL?

More from SQL & Databases

Master Interviews
Anywhere, Anytime