Sql Distinct Limit — Free Sql Tutorial

TL;DR: Learn Sql Distinct Limit in Sql with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Sql Distinct Limit in Sql

DISTINCT removes duplicate rows from results — shows each unique combination once. Useful for finding unique values or counts.

LIMIT restricts how many rows are returned. OFFSET skips rows (for pagination). Essential for performance on large datasets.

DISTINCT is applied before ORDER BY and LIMIT, so it's an expensive operation on large tables.

SELECT DISTINCT column FROM table;
SELECT DISTINCT col1, col2 FROM table;  -- unique pairs

SELECT * FROM table LIMIT 10;
SELECT * FROM table LIMIT 10 OFFSET 20;  -- rows 21-30

SELECT COUNT(DISTINCT column) FROM table;

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