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Mysql Modify Field Length
it can be modified with this command: alterableusermodifiycolumnnamevarchar (5);

MySQL is a relational database management system, which is developed by MySQLAB company in Sweden, and belongs to Oracle products. It is one of the most popular relational database management systems. The SQL language used by MySQL is the most commonly used standardized language for accessing databases. Because of its small size, high speed and open source, MySQL is generally chosen as the website database for the development of small and medium-sized websites. MySQL Standard Edition enables you to deliver high-performance and scalable online transaction processing (OLTP) applications. It provides the ease of use, industry-class performance and reliability that make MySQL famous all over the world.

MySQL standard edition includes InnoDB, which makes it a fully integrated, transaction-safe and ACID-compliant database. In addition, MySQL replication allows you to deliver high-performance and scalable applications. Lower TCO—MySQL allows you to minimize the total cost of ownership of your database. Reliability, performance and ease of use-—MySQL has proved to be a popular open source database in the world. Database development, design and management-—MySQLWorkbench provides an integrated development, design and management environment, which improves the work efficiency of developers and DBAs. When other functions are needed, you can easily upgrade to MySQL Enterprise Edition or MySQLCluster Carrier Edition.