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MySQL

MySQL is an open-source relational database management system (RDBMS) widely used for storing and managing data. It facilitates efficient data organization, retrieval, and modification, making it a popular choice for web applications and various software projects.

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  • What is MySQL?

    MySQL is an open-source relational database management system (RDBMS) that uses SQL (Structured Query Language). It is widely used for managing and organizing structured data and is known for its reliability, ease of use, and strong community support.

  • How do you connect to a MySQL database?

    To connect to a MySQL database, you typically use a MySQL client or an application that supports MySQL connections. You need to provide connection details such as the host name, username, password, and database name.

  • What is the purpose of the SELECT statement in MySQL?

    The SELECT statement is used in MySQL to retrieve data from one or more tables. It allows you to specify the columns you want to retrieve, filter data using conditions, and perform various operations on the selected data.

  • How do you create a new table in MySQL?

    To create a new table in MySQL, you use the CREATE TABLE statement. This statement includes the table name, column names, data types, and any constraints or indexes.

  • Explain the difference between INNER JOIN and LEFT JOIN in MySQL.

    In MySQL, INNER JOIN returns only the rows where there is a match in both tables based on the specified condition. On the other hand, LEFT JOIN returns all rows from the left table and the matched rows from the right table. If there is no match, NULL values are returned for columns from the right table.

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