9 docs tagged with "clauses"

Learn how to use SQL aliases to give temporary, readable names to your columns and tables. Perfect for complex joins and math operations.

Learn how to use the SELECT DISTINCT statement to retrieve unique values from a table. Understand how it works with multiple columns.

Learn how to use the SQL GROUP BY clause to arrange identical data into groups. Often used with aggregate functions for reporting.

Master the SQL HAVING clause. Learn why WHERE cannot be used with aggregates and how to filter your GROUP BY results effectively.

Learn how to limit the number of rows returned by a query. Syntax for MySQL LIMIT, SQL Server TOP, and Oracle FETCH FIRST.

Learn how to sort your SQL results alphabetically, numerically, and by date using the ORDER BY clause. Covers ASC and DESC keywords.

Learn how to use SQL clauses like WHERE, ORDER BY, and LIMIT to refine your search results and improve application performance.

Master the SQL WHERE clause. Learn how to filter rows based on specific conditions using comparison and logical operators.

Master the SQL WITH clause. Learn how to create Common Table Expressions (CTEs) to make complex queries readable and modular.