What is a database schema and what is its purpose?

Question

A database schema is a visual and logical architecture of a database created on a database management system. It provides a graphical view of the entire database architecture and structure. It provides a means for logically grouping and displaying database objects such as tables, fields, functions and relations. 19 янв. 2017 г.

What is purpose of database schema?

A database schema represents the logical configuration of all or part of a relational database. It can exist both as a visual representation and as a set of formulas known as integrity constraints that govern a database. These formulas are expressed in a data definition language, such as SQL.

What does schema mean in a database?

A schema is a collection of database objects. A schema is owned by a database user and has the same name as that user. Schema objects are logical structures created by users. Objects such as tables or indexes hold data, or can consist of a definition only, such as a view or synonym.

Expert · Answer

A database schema represents the logical configuration of all or part of a relational database. It can exist both as a visual representation and as a set of formulas known as integrity constraints that govern a database. These formulas are expressed in a data definition language, such as SQL.

Expert · Answer

A schema is a collection of database objects. A schema is owned by a database user and has the same name as that user. Schema objects are logical structures created by users. Objects such as tables or indexes hold data, or can consist of a definition only, such as a view or synonym.

What is a database schema and what is its purpose?

What is purpose of database schema?

What does schema mean in a database?

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