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Views (logical views) are stored queries that encapsulate one or multiple SELECT statements. Views dynamically access and compute database data when executed. Views are read-only and can reference any combination of tables and other views.

Views can be used for the following purposes:

  • To simplify access or provide secure access by hiding complex SELECT statements from users. For example, you can create a view that displays only the data users need from various tables while hiding sensitive data in those tables.
  • To encapsulate details of table structures that may change over time behind a consistent user interface.

Unlike materialized views, logical views are not materialized, which means they do not store data on disk. Therefore, they have the following limitations:

  • When the underlying table data changes, Doris does not need to refresh the view data. However, accessing and computing data through views can incur some overhead.
  • Views do not support insert, delete, or update operations.

Creating View​

The syntax for creating a logical view is as follows:

(column1[ COMMENT "col comment"][, column2, ...])
AS query_stmt


  • Views are logical and have no physical storage. All queries on views are equivalent to queries on the corresponding subquery of the view.
  • query_stmt is any supported SQL statement.


  • Creating a view named example_view in the example_db database:
CREATE VIEW example_db.example_view (k1, k2, k3, v1)
SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
WHERE k1 = 20160112 GROUP BY k1,k2,k3;
  • Creating a view with comments:
CREATE VIEW example_db.example_view
k1 COMMENT "first key",
k2 COMMENT "second key",
k3 COMMENT "third key",
v1 COMMENT "first value"
COMMENT "my first view"
SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
WHERE k1 = 20160112 GROUP BY k1,k2,k3;