Câu hỏi phỏng vấn MySQL
Câu hỏi

What is mysqldump ?

Câu trả lời

mysqldump is a command-line utility that is part of the MySQL relational database package. It is designed to "dump" a database or a collection of databases for the purpose of backup or transfer to another SQL server. The utility generates a file containing SQL statements that can recreate the database's structure and data. This file can then be used to restore the original database or to migrate data to another database server. The server receiving the data does not necessarily have to be a MySQL server, as the SQL statements generated are standard and can be executed in other SQL database systems as well[1][2].

mysqldump is highly versatile and supports various options for customizing the output. For example, it can generate dump files in SQL format by default, but it can also produce files in XML, CSV, or other delimited text formats. This makes it a powerful tool for backing up databases, transferring data between servers, or even for processing data in different formats for other applications[1].

The utility is used by executing it from the command line, specifying various options to tailor its operation to the user's needs. These options can include the names of the databases and tables to dump, whether to include data or just schema, and the format of the output file, among others. mysqldump is typically included with the MySQL client or server installation, making it readily available for database administrators and developers[1][2].

In addition to its primary function of backing up databases, mysqldump can be used for a var...

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