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SQLize Online / PHPize Online  /  SQLtest Online

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SQLize.online is a free online SQL environment for quickly running, experimenting with and sharing code. You can run your SQL code on top of the most popular RDBMS including MySQL, MariaDB, SQLite, PostgreSQL, Oracle and Microsoft SQL Server.

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with recursive month_dates(date) AS ( select '2005-07-01' union all select date_add(date, interval 1 day) from month_dates where date < '2005-07-31' ) select count(*) weekend_days from month_dates where dayofweek(date) IN (7, 1);

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