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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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SET SESSION group_concat_max_len = 1000000;; -- Шаг 1: Объединение таблиц rental и customer CREATE VIEW merged_data AS SELECT r.rental_time as meet_time, s.store_id, c.customer_id, c.first_name, c.last_name FROM rental r INNER JOIN store s ON r.store_id = s.store_id INNER JOIN customer c ON r.customer_id = c.customer_id; -- Шаг 2: Получение списка клиентов, встречавшихся в одном магазине и в одно время CREATE VIEW meeting_customers AS SELECT m.meet_time, m.store_id, GROUP_CONCAT(m.customer_id ORDER BY m.last_name SEPARATOR ',') AS customers FROM merged_data m GROUP BY m.meet_time, m.store_id HAVING COUNT(*) > 1; -- Шаг 3: Сортировка результатов по времени встречи и номеру магазина SELECT meet_time, store_id, customers FROM meeting_customers ORDER BY meet_time ASC, store_id ASC; ; show status like 'Last_query_cost';
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MySQL 5.7
MySQL 5.7 Sakila (ReadOnly)
MySQL 8.0
MySQL 8.0 Sakila (ReadOnly)
MariaDB 11.5
SQLite 3
SQLite 3 Preloaded
PostgreSQL 10 Bookings (ReadOnly)
PostgreSQL 11
PostgreSQL 12
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PostgreSQL 14
PostgreSQL 15
MS SQL Server 2017
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MS SQL Server 2022 AdventureWorks (ReadOnly)
Firebird 4.0
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Oracle Database 19c (HR)
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