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  Tutorial: Database MySQL Optimizing MySQL Queries and Indexes Tutorial

Building a database-driven site is one thing. But all too often your masterpiece starts performing like a donkey when it becomes popular. Learn how to optimize your queries and indexes in MySQL, and potentially speed up your application many times over.

Tutorial Details:

Database MySQL Optimizing MySQL Queries and Indexes Tutorial

The database is just too slow. Queries are queuing up, backlogs growing, users being refused connection. Management is ready to spend millions on "upgrading" to some other system, when the problem is really that MySQL is simply not being used properly. Badly defined or non-existent indexes are one of the primary reasons for poor performance, and fixing these can often lead to phenomenal improvements. Consider an extreme example:

CREATE TABLE employee (
employee_number char(10) NOT NULL,
firstname varchar(40),
surname varchar(40),
address text,
tel_no varchar(25),
salary int(11),
overtime_rate int(10) NOT NULL
);
To find employee Fred Jone's salary(employee number 101832), you run: SELECT salary FROM employee WHERE employee_number = '101832';


 

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Database MySQL Optimizing MySQL Queries and Indexes Tutorial

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