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What is the difference between database views and tables
Database views and tables are two different concepts in the database, with different characteristics and uses. A table is an entity that actually stores data in the database, while a view is a virtual table derived from one or more tables, used to specify way to present and manipulate data. Tables have higher data persistence, while views provide more flexible and convenient data access.
What are the differences between database views and tables?There are five differences between database views and tables in the database: 1. Views do not store data, but tables are the objects that actually store data; 2. The data in the view is a virtual table, and the data in the table can come from multiple sources; 3. The view inherits the structure of the query statement, while the table has its own structural definition; 4. The view cannot be updated, while the table allows direct operations on it; 5. The view is based on the permissions of the underlying table, and the table has its own access permissions.
What is the difference between database views and tablesDifferences: 1. Views are compiled SQL statements, tables are not; 2. Views do not have actual physical records, tables do; 3. Tables are content, views are windows; 4. Tables occupy physical space, but views do not. ; 5. The table is a conceptual schema, the view is an external schema; 6. The table belongs to the table in the global schema, the view belongs to the table in the local schema, etc.
How to distinguish database views and tablesDatabase views and tables are two different concepts in the database, with different characteristics and uses. A table is an entity that actually stores data in the database, while a view is a virtual table derived from one or more tables, used to specify way to present and manipulate data. Tables have higher data persistence, while views provide more flexible and convenient data access.
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