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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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CREATE TABLE user_activity ( user_id int, activity varchar(32), activity_date datetime ); INSERT INTO user_activity VALUES (1, 'login', '2020-01-01 15:16:17'), (2, 'login', '2020-01-01 15:18:19'), (3, 'login', '2020-01-01 19:24:41'), (3, 'logout', '2020-01-01 20:08:01'), (1, 'logout', '2020-01-02 03:16:17'); SELECT user_activity.user_id, user_activity.activity, last_activity_date FROM user_activity JOIN ( SELECT user_id, MAX(activity_date) last_activity_date FROM user_activity GROUP BY user_id ) last_activity ON last_activity.user_id = user_activity.user_id AND last_activity.last_activity_date = user_activity.activity_date ORDER BY activity_date DESC;
SQL
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MariaDB 11.4
MariaDB 11.5
MariaDB 10
MariaDB 10 Sakila (ReadOnly)
MySQL 5.7
MySQL 5.7 Sakila (ReadOnly)
MySQL 8.0
MySQL 8.0 Sakila (ReadOnly)
SQLite 3
SQLite 3 Preloaded
PostgreSQL 10 Bookings (ReadOnly)
PostgreSQL 11
PostgreSQL 12
PostgreSQL 13
PostgreSQL 14
PostgreSQL 15
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
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