Hi! Could we please enable some services and cookies to improve your experience and our website?

SQLize Online / PHPize Online  /  SQLtest Online

A A A
Share code      Blog   Popular   FAQ

Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code

Copy Format Clear
select count_departured, count_delayed, round(count_delayed/count_departured*100, 2) delayed_flights_rate from ( select count(flight_id) count_departured, sum(case when date_trunc('seconds', actual_departure-scheduled_departure) > '00:30:00' then 1 else 0 end)::numeric as count_delayed from ( select flight_id, scheduled_departure, actual_departure from flights where actual_departure is not null and departure_airport = 'DME' and date(scheduled_departure) between '2017-08-01' and '2017-08-31') as subq ) subq1

Stuck with a problem? Got Error? Ask ChatGPT!

Copy Clear
Have a question? Ask in our telegram chat!
Contact us:
© 2025 Free Online PostgreSQL 10 Bookings (ReadOnly) Playground: Practice & Master SQL Skills | About project | Privacy Policy and Disclaimer
PHP versions: PHP 7.4, PHP 8.0, PHP 8.1, PHP 8.2, PHP 8.3, PHP 8.4
RDBMS versions: MySQL 8.0, MySQL 8.0 Sakila (ReadOnly), MySQL 9.3.0, MariaDB 11.4, MariaDB 11.8, MariaDB 10, MariaDB 10 Sakila (ReadOnly), SQLite 3, SQLite 3 Preloaded, PostgreSQL 10 Bookings (ReadOnly), PostgreSQL 13, PostgreSQL 14, PostgreSQL 15, PostgreSQL 16, PostgreSQL 17, MS SQL Server 2017, MS SQL Server 2019, MS SQL Server 2022, MS SQL Server 2022 AdventureWorks (ReadOnly), Firebird 4.0, Firebird 4.0 (Employee), Oracle Database 19c (HR), Oracle Database 21c, Oracle Database 23c Free, SOQOL