use master goif db_id(N'zhangxu')is not nulldrop database zhangxugocreate database zhangxusp_helpdb zhangxuuse zhangxugoIF EXISTS (SELECT *FROM SYS.OBJECTS WHERE NAME = N'WORKER')DROP TABLE WORKERGOcreate table worker( w_id int identity (1000,1) not null, w_name Nvarchar(10) unique, w_age SMALLINT CONSTRAINT CK_W_AGE CHECK(w_age>20 and w_age<150), w_pay money DEFAULT 0, CONSTRAINT PK_W_ID PRIMARY KEY(W_ID))SELECT *FROM WORKER--用查询技术查看表信息sp_help worker--利用存储过程查看表信息

/*创建简单的非聚集索引*/USE ZHANGXUGOif exists(select name from sys.indexes where name = N'IX_ID_NAME')DROP INDEX IX_ID_NAME on workergo--检查是否存在索引，有则删除索引create index IX_ID_NAME--创建索引on worker(w_id,w_name)--在ID NAME 两个字段上创建非聚集索引drop index worker.IX_ID_NAME--删除索引select *from sys.indexes where name = 'IX_ID_NAME'--查看索引

/*创建唯一非聚集索引*/USE ZHANGXUGOIF EXISTS(SELECT NAME FROM SYS.INDEXES WHERE NAME = N'IX_W_NAME')DROP INDEX IX_W_NAME ON WORKERGOCREATE UNIQUE INDEX IX_W_NAME--唯一非聚集索引ON WORKER(W_NAME)/*查看索引T-SQL脚本*/

--IX_W_NAME 唯一 非聚集索引USE [zhangxu]GO/****** 对象:  Index [IX_W_NAME]    脚本日期: 07/29/2007 16:54:53 ******/CREATE UNIQUE NONCLUSTERED INDEX [IX_W_NAME] ON [dbo].[worker] ( [w_name] ASC)WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]

--PK_W_ID聚集索引USE [zhangxu]GO/****** 对象:  Index [PK_W_ID]    脚本日期: 07/29/2007 16:56:45 ******/ALTER TABLE [dbo].[worker] ADD  CONSTRAINT [PK_W_ID] PRIMARY KEY CLUSTERED ( [w_id] ASC)WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]

--UQ_WORKER 唯一，非聚集索引USE [zhangxu]GO/****** 对象:  Index [UQ__worker__07020F21]    脚本日期: 07/29/2007 16:58:38 ******/ALTER TABLE [dbo].[worker] ADD UNIQUE NONCLUSTERED ( [w_name] ASC)WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]select *from workerinsert into worker(w_name,w_age,w_pay) values('王国龙',25,4500)