Create table users( user_id in not null primary key AUTO_INCREMENT, username varchar(20) not null unique, password varchar(20) not null ) select count(*) from information_schema.columns where table_schema = database() and table_name = 'users'

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Select all from information schema. Here you can see all the tables inside your database and their TYPE. When we call INFORMATION_SCHEMA.TABLES, it returns all the objects as defined by the database rules in their documentation.

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SELECT USER, COUNT(*) FROM information_schema.PROCESSLIST GROUP BY USER. Along with the Event Scheduler, a stored procedure may decide to KILL processes executing for more than 10 minutes, KILL users who have too many connections, perform some logging on connections and more.

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