![sql server 2012 enterprise edition disk space sql server 2012 enterprise edition disk space](https://www.sqlrx.com/wp-content/uploads/2015/04/blog_20150423_1.png)
Index Tuning Wizard in previous releases of SQL Server. The Database Engine Tuning Advisor was first introduced in SQL Server 2005 and replace the Use Database Engine Tuning Advisor to help select the indexes to be used in a view. Sometimes it can greatly improve performance especially if the underlying tables are located Space used and slowly rows modification outweigh the speed advantages of creating a new index.Ĭonsider creating two or more smaller views instead of creating a single large (which has only "Male" and "Female" values), because in this case the disadvantages of additional This reduces the number of reads required to read the index and boostĭon't create index on column(s) which values has low selectivity.įor example, don't create an index for columns with many duplicate values, such as "Sex" column Keep the indexes on the views as narrow as possible.īecause each index takes up disk space try to minimize the index key's size to avoid using In this case, creating appropriate clustered index on a view can greatly improve performance Required to read the index and boost overall index performance.Ĭonsider creating index on a view that joins two or more large tables. Number of index pages, which are used to store the index keys. The int data type is 4 bytes, the size of the bigint data type is 8 bytes), you can reduce the
![sql server 2012 enterprise edition disk space sql server 2012 enterprise edition disk space](https://s33046.pcdn.co/wp-content/uploads/2019/09/different-sql-server-editions.png)
Try to create indexes on columns that have integer values rather than character values.īecause the integer values usually have less size than the characters values size (the size of The order of the columns in a composite (multi-column) index is very important. To enhance selectivity, with the most selective columns to the leftmost of the key. If you create a composite (multi-column) index, try to order the columns in the key as In this case, the queries will not take advantages of the view's indexes and the queries They require the use of the NOEXPAND hint to be used.Īvoid creating indexes on a view when the queries that use the view don't contain In all otherĮditions the indexed views will not be automatically considered by the query optimizer, and While indexed views can be created in any edition of SQL Server 2008, only in SQL Server 2008Įnterprise Edition the query optimizer automatically considers the indexed view. Use SQL Server 2008 Enterprise Edition to get the most benefit out of indexed views. By using these views, you can increase the speed and efficiency SQL Server 2008 supports defining indexed views on partitioned data. Index to a view only if the benefit of its speed increase when running exceeds the time it takesĬonsider using partition-aligned indexed views. On views, just like indexes on tables, experience modification overhead. Indexes of the view are also modified to be always up-to-date when it is accessed. When the underlying tables of the view are modified, the clustered index, and any non-clustered Keep in mind, that compression is available only in the SQL Server 2008 Enterprise and By using indexed viewsĬompression, you can reduce the total disk storage space. SQL Server 2008 introduces on-disk storage compression for indexed views. You may experience modification overhead and the total modification performance may be very poor. In this article, you can find some tips about performance tuning and optimizing indexed views inĪvoid creating indexes on a view that based on a table with a high percentage of INSERT,īecause the index of the view will be updated automatically when the base table will be updated,
![sql server 2012 enterprise edition disk space sql server 2012 enterprise edition disk space](https://www.sqlservercentral.com/wp-content/uploads/legacy/b539d1794f1a139b6cb8469422033df18b8bcad4/131.jpg)
Once a unique clustered index has been createdįor a view, you can also create non-clustered indexes for the same view. Just like a table with a clustered index is stored. In queries that involve complex processing, such as aggregating lots of data or joining many rows.Īfter creating a unique clustered index on a view, the result set will be stored in the database Performance by creating a unique clustered index on the view, if the view is frequently referenced One of the ways to optimize SQL Server 2008 performance is using indexed views.