SQL SERVER 2005 存储过程

USE AdventureWorks
GO
CREATE PROC spEmployee
AS
SELECT * from Humanresources.Employee
EXEC spEmployee
ALTER PROC spEmployee
AS SELECT EmployeeID from Humanresources.Employee
drop proc spEmployee
ALTER PROC spEmployee
@LastName nvarchar(50) = NULL
AS
IF @LastName IS NULL
SELECT * from HumanResources.Employee
ELSE
SELECT c.LastName,c.FirstName,e.*
from Person.Contact c
INNER JOIN HumanResources.Employee e
ON c.ContactID = e.ContactID
WHERE c.LastName LIKE @LastName + '%'
EXEC spEmployee
BEGIN TRY
CREATE TABLE OurIFTest
(
COL INT PRIMARY KEY
)
END TRY
BEGIN CATCH
DECLARE @MyOutParameter int
IF ERROR_NUMBER() = 2714
BEGIN
PRINT 'WARNING SHIPPING CREATE AS TABLE ALREADY EXISTS'
EXEC dbo.uspLogError @ErrorLogID = @MyOutParameter OUTPUT
PRINT 'A ERROR WAS LOGGED.THE ERROR ID WAS ' + CAST(@MyOutParameter AS VARCHAR)
END
ELSE
RAISERROR('SOMETHINGS NOT GOOD HAPPENED THIS AROUND',16,1)
END CATCH
DROP TABLE OurIFTest
CREATE TABLE OurIFTest
(
COL INT PRIMARY KEY
)
IF @@ERROR != 0
PRINT 'PROBLEM'
ELSE
PRINT 'EVERYTHING ID OK !'
CREATE PROC spTestRETURN
AS
DECLARE @MyMessage varchar(50)
DECLARE @MyOtherMessage varchar(50)
SELECT @MyMessage = 'HI,IT''S THAT LINE BEFOR THE RETURN'
PRINT @MyMessage
RETURN
SELECT @MyOtherMessage = 'SORRY,BUT WE WON''T GET THIS FAR'
RETURN @MyOtherMessage
RETURN
ALTER PROC spTestRETURN
AS
DECLARE @MyMessage varchar(50)
DECLARE @MyOtherMessage varchar(50)
SELECT @MyMessage = 'HI,IT''S THAT LINE BEFOR THE RETURN'
PRINT @MyMessage
RETURN 100
SELECT @MyOtherMessage = 'SORRY,BUT WE WON''T GET THIS FAR'
PRINT @MyOtherMessage
RETURN
DECLARE @ReturnVal int
EXEC @ReturnVal = spTestRETURN
SELECT @ReturnVal
DECLARE @Error int
INSERT INTO Sales.Individual
(CustomerID,ContactID)
VALUES
(0,0)
SELECT @Error = @@ERROR
PRINT ''
PRINT 'THE VALUE OF ERROR IS ' + CONVERT(VARCHAR,@Error)
PRINT 'THE VALUE OF @@ERROR IS ' + CONVERT(VARCHAR