Create an indexed view: a T-SQL exampleThe following example creates a view and an index on that view, in the AdventureWorks database.SQL Copy --Set the options to support indexed views. SET NUMERIC_ROUNDABORT OFF; SET ANSI_PADDING, ANSI_WARNINGS, CONCAT_NULL_YIELDS_NULL, ARITHABORT, ...
Create an indexed view: a T-SQL exampleThe following example creates a view and an index on that view, in the AdventureWorks database.SQL Copy --Set the options to support indexed views. SET NUMERIC_ROUNDABORT OFF; SET ANSI_PADDING, ANSI_WARNINGS, CONCAT_NULL_YIELDS_NULL, ARITHABORT, ...
--Set the options to support indexed views.SETNUMERIC_ROUNDABORTOFF;SETANSI_PADDING, ANSI_WARNINGS, CONCAT_NULL_YIELDS_NULL, ARITHABORT, QUOTED_IDENTIFIER, ANSI_NULLSON;--Create view with SCHEMABINDING.IF OBJECT_ID('Sales.vOrders', 'view') IS NOT NULLDROPVIEWSales.vOrders; GOCREATEVIEWSales....
--以with schemabinding创建索引视图 IF OBJECT_ID ('Sales.vOrders', 'view') IS NOT NULL DROP VIEW Sales.vOrders ; GO CREATE VIEW Sales.vOrders WITH SCHEMABINDING AS SELECT SUM(UnitPrice*OrderQty*(1.00-UnitPriceDiscount)) ASRevenue, OrderDate, ProductID, COUNT_BIG(*) ASCOUNT FROM Sales.Sa...
IF OBJECT_ID ('Sales.vOrders', 'view') IS NOT NULL DROP VIEW Sales.vOrders ; GO CREATE VIEW Sales.vOrders WITH SCHEMABINDING AS SELECT SUM(UnitPrice*OrderQty*(1.00-UnitPriceDiscount)) ASRevenue, OrderDate, ProductID, COUNT_BIG(*) ASCOUNT ...
CREATEUNIQUECLUSTEREDINDEXIX_EmployeeCountONvw_EmployeeCount(DepartmentID); 1. 2. 查询性能提升 通过为视图创建索引,查询vw_EmployeeCount视图将会变得更加高效。以下是一个示例查询: SELECT*FROMvw_EmployeeCountWHEREDepartmentID=1; 1. 此时,SQL Server 将利用物化视图中的索引快速返回结果。
CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON { table | view } ( column [ ASC | DESC ] [ ,...n ] ) [ WITH < index_option > [ ,...n] ] [ ON filegroup ] < index_option > ::= { PAD_INDEX | ...
2. 键入并执行以下语句创建一个视图以通过分组订单的月份来聚合 LineTotal。此示例的代码包含在示例文件CreatingAndUsingIndexedViews.sq l中。 CREATE VIEW dbo.vOrderDetails WITH SCHEMABINDING AS SELECT DATEPART(yy, Orderdate) as Year, DATEPART(mm, ...
To create an indexed view, a unique clustered index is defined on one or more view columns. The view is executed and the result set is stored in the leaf level of the index in the same way table data is stored in a clustered index. For more information, see Create Indexed Views.Limita...
A unique clustered index must be created on a view before any other indexes can be defined on the same view. For more information, see Create Indexed Views.Create the clustered index before creating any nonclustered indexes. Existing nonclustered indexes on tables are rebuilt when a clustered ...