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Data Definition Language (DDL) is a subset of SQL that deals with defining, altering, and managing the structure of a database. It allows users to create, modify, and delete database objects like tables, indexes, and schemas. Unlike Data Query Language (DQL), which focuses on retrieving data, DDL focuses on the organization and structure of the database itself
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Data Definition Language (DDL) is a subset of SQL that deals with defining, altering, and managing the structure of a database. It allows users to create, modify, and delete database objects like tables, indexes, and schemas. Unlike Data Query Language (DQL), which focuses on retrieving data, DDL focuses on the organization and structure of the database itself
7集单集
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