如何在SQL Server中创建复合索引？

Question

我需要在advisor_name表

上创建复合索引名Employee

where Advisor Name = Last_Name + ", " + First_Name

Answer 1

您可以添加持久计算列，而不是创建索引。 有关详细信息：Indexes on Computed Columns

ALTER TABLE dbo.EmployeeTable
ADD AdvisorName AS Last_Name + ', ' + First_Name PERSISTED
GO

CREATE INDEX IX_EmployeeTable_AdvisorName ON dbo.EmployeeTable
(AdvisorName)