USE master ; GO CREATE DATABASE Sales ON ( NAME = Sales_dat,  FILENAME = 'C:/Program Files/Microsoft SQL Server/MSSQL13.MSSQLSERVER/MSSQL/DATA/saledat.mdf',  SIZE = 10,  MAXSIZE = 50,  FILEGROWTH = 5 ) LOG ON ( NAME = Sales_log,  FILENAME = 'C:/Program Files/Microsoft SQL Server/MSSQL13.MSSQLSERVER/MSSQL/DATA/salelog.ldf',  SIZE = 5MB,  MAXSIZE = 25MB,  FILEGROWTH = 5MB ) ; GO 

SELECT name, database_id, create_date FROM sys.databases ; 

DROP DATABASE Sales;

CREATE TABLE PurchaseOrderDetail (  ID uniqueidentifier NOT NULL  ,LineNumber smallint NOT NULL  ,ProductID int NULL  ,UnitPrice money NULL  ,OrderQty smallint NULL  ,ReceivedQty float NULL  ,RejectedQty float NULL  ,DueDate datetime NULL ); 

DROP TABLE dbo.PurchaseOrderDetail; 

EXEC sp_rename 'Sales.SalesTerritory', 'SalesTerr'; 

ALTER TABLE dbo.doc_exa ADD column_b VARCHAR(20) NULL, column_c INT NULL ;

ALTER TABLE dbo.doc_exb DROP COLUMN column_b; 

EXEC sp_rename 'Sales.SalesTerritory.TerritoryID', 'TerrID', 'COLUMN'; 

--在現(xiàn)有表中創(chuàng)建主鍵ALTER TABLE Production.TransactionHistoryArchive ADD CONSTRAINT PK_TransactionHistoryArchive_TransactionID PRIMARY KEY CLUSTERED (TransactionID);--在新表中創(chuàng)建主鍵CREATE TABLE Production.TransactionHistoryArchive1 (  TransactionID int IDENTITY (1,1) NOT NULL  , CONSTRAINT PK_TransactionHistoryArchive_TransactionID PRIMARY KEY CLUSTERED (TransactionID) );--查看主鍵 SELECT name FROM sys.key_constraints WHERE type = 'PK' AND OBJECT_NAME(parent_object_id) = N'TransactionHistoryArchive'; GO --刪除主鍵ALTER TABLE Production.TransactionHistoryArchive DROP CONSTRAINT PK_TransactionHistoryArchive_TransactionID; GO 

CREATE VIEW V_EmployeeHireDate AS SELECT p.FirstName, p.LastName, e.HireDate FROM HumanResources.Employee AS e JOIN Person.Person AS p ON e.BusinessEntityID = p.BusinessEntityID ; GO 

DROP VIEW V_EmployeeHireDate; 

CREATE PROCEDURE P_UspGetEmployeesTest  @LastName nvarchar(50),  @FirstName nvarchar(50) AS  SELECT FirstName, LastName, Department  FROM HumanResources.vEmployeeDepartmentHistory  WHERE FirstName = @FirstName AND LastName = @LastName  AND EndDate IS NULL; GO 

DROP PROCEDURE P_UspGetEmployeesTest; 

EXEC P_UspGetEmployeesTest N'Ackerman', N'Pilar'; -- Or EXEC P_UspGetEmployeesTest @LastName = N'Ackerman', @FirstName = N'Pilar'; GO -- Or EXECUTE P_UspGetEmployeesTest @FirstName = N'Pilar', @LastName = N'Ackerman'; GO 

EXEC sp_rename 'P_UspGetAllEmployeesTest', 'P_UspEveryEmployeeTest2'; 

CREATE PROCEDURE P_UspGetEmployeeSalesYTD @SalesPerson nvarchar(50), @SalesYTD money OUTPUT AS  SELECT @SalesYTD = SalesYTD  FROM SalesPerson AS sp  JOIN vEmployee AS e ON e.BusinessEntityID = sp.BusinessEntityID  WHERE LastName = @SalesPerson; RETURN GO--調(diào)用DECLARE @SalesYTDBySalesPerson money; EXECUTE P_UspGetEmployeeSalesYTD  N'Blythe',  @SalesYTD = @SalesYTDBySalesPerson OUTPUT; GO