I have a question regarding computed columns, functions and indexed views. In an indexed view, I'm able to create indexes on (persistent & precise) computed columns, I'm able to create indexes on functions and scalar expressions, but I don't seem to be able to create an index on an ...
How the Query Optimizer Considers Indexed Views - One interesting feature in SQL Server 2000 is that if you have a view with indexes, and the underlying table does not have indexes, the query optimizer might use the view even if the view is not specifically referenced by the query. The que...
Indexes on tables and views can be disabled. When a clustered index on a table is disabled, indexes on views associated with the table are also disabled.PermissionsTo create the view, a user needs to hold the CREATE VIEW permission in the database and ALTER permission on the schema in whic...
The view and subsequent indexes on the view are created. The base tables referenced in the view at the time the view is created. When any insert, update, or delete operation is performed on any table that participates in the indexed view. This requirement includes operations such as bulk ...
Indexes have been a method to improve the performance of SQL queries since the creation of relational databases in the 1970's. You are probably familiar with the ways that indexes can speed query operations at the expense of additional overhead during data inserts, updates, and deletes. Up un...
Remember, as is the case with all indexes, SQL Server chooses to use an indexed view in its query plan only if the query optimizer determines whether it helps to do this. Indexed views can be created in any edition of SQL Server 2008. In SQL Server 2008 Enterprise, the query optimizer ...
4 Partitions, Views, and Other Schema ObjectsAlthough tables and indexes are the most important and commonly used schema objects, the database supports many other types of schema objects, the most common of which are discussed in this chapter....
MySQL Restrictions and Limitations / Restrictions on Views Chapter 2 Restrictions on ViewsThe maximum number of tables that can be referenced in the definition of a view is 61. View processing is not optimized: It is not possible to create an index on a view. Indexes can be used for ...
indexes, to improve data access performance on the most complex queries. In SQL Server 2000 and 2005, a view that has a unique clustered index is referred to as an indexed view. The discussion in this paper applies to SQL Server 2005. Much of the discussion also applies to SQL Server ...
gsql:Oracle_Functions.sql:1035: NOTICE: | result_type | case_count | start_time | complete_time | gsql:Oracle_Functions.sql:1035: NOTICE: |---|---|---|---| gsql:Oracle_Functions.sql:1035: NOTICE: | PASSED | 387 | 2021-11-25 09:42:20.016619 | 2021-11-25 09:42:52.127892 |...