USE AdventureWorks;
GO
UPDATE Sales.SalesPerson
SET SalesYTD = SalesYTD +
(SELECT SUM(so.SubTotal)
FROM Sales.SalesOrderHeader AS so
WHERE so.OrderDate = (SELECT MAX(OrderDate)
FROM Sales.SalesOrderHeader AS so2
WHERE so2.SalesPersonID =
so.SalesPersonID)
AND Sales.SalesPerson.SalesPersonID = so.SalesPersonID
GROUP BY so.SalesPersonID);
GO
BEGIN
SET NOCOUNT ON;
BEGIN TRY
BEGIN TRANSACTION;
UPDATE [HumanResources].[Employee]
SET [Title] = @Title
,[HireDate] = @HireDate
,[CurrentFlag] = @CurrentFlag
WHERE [EmployeeID] = @EmployeeID;
INSERT INTO [HumanResources].[EmployeePayHistory]
([EmployeeID]
,[RateChangeDate]
,[Rate]
,[PayFrequency])
VALUES (@EmployeeID, @RateChangeDate, @Rate, @PayFrequency);
COMMIT TRANSACTION;
END TRY
BEGIN CATCH
-- Rollback any active or uncommittable transactions before
-- inserting information in the ErrorLog
IF @@TRANCOUNT > 0
BEGIN
ROLLBACK TRANSACTION;
END
EXECUTE [dbo].[uspLogError];
END CATCH;
END;
申明table变量
declare @t table(id int,name varchar(10),groupid varchar(4),astdatetime varchar(20))
insert into @t select 1,'aaa','001','2007-03-06'
insert into @t select 2,'bbb','001','2007-03-07'
insert into @t select 3,'ccc','001','2007-03-05'
insert into @t select 4,'ddd','002','2007-03-05'
insert into @t select 5,'eee','002','2007-03-08'
表值函数创建
USE AdventureWorks;
GO
CREATE FUNCTION Sales.fn_SalesByStore (@storeid int)
RETURNS TABLE
AS
RETURN
(
SELECT P.ProductID, P.Name, SUM(SD.LineTotal) AS 'YTD Total'
FROM Production.Product AS P
JOIN Sales.SalesOrderDetail AS SD ON SD.ProductID = P.ProductID
JOIN Sales.SalesOrderHeader AS SH ON SH.SalesOrderID = SD.SalesOrderID
WHERE SH.CustomerID = @storeid
GROUP BY P.ProductID, P.Name
);
GO
复杂多语句表值函数创建
USE AdventureWorks;
GO
CREATE FUNCTION dbo.fn_FindReports (@InEmpID INTEGER)
RETURNS @retFindReports TABLE
(
EmployeeID int primary key NOT NULL,
Name nvarchar(255) NOT NULL,
Title nvarchar(50) NOT NULL,
EmployeeLevel int NOT NULL,
Sort nvarchar (255) NOT NULL
)
--Returns a result set that lists all the employees who report to the
--specific employee directly or indirectly.*/
AS
BEGIN
WITH DirectReports(Name, Title, EmployeeID, EmployeeLevel, Sort) AS
(SELECT CONVERT(Varchar(255), c.FirstName + ' ' + c.LastName),
e.Title,
e.EmployeeID,
1,
CONVERT(Varchar(255), c.FirstName + ' ' + c.LastName)
FROM HumanResources.Employee AS e
JOIN Person.Contact AS c ON e.ContactID = c.ContactID
WHERE e.EmployeeID = @InEmpID
UNION ALL
SELECT CONVERT(Varchar(255), REPLICATE ('| ' , EmployeeLevel) +
c.FirstName + ' ' + c.LastName),
e.Title,
e.EmployeeID,
EmployeeLevel + 1,
CONVERT (Varchar(255), RTRIM(Sort) + '| ' + FirstName + ' ' +
LastName)
FROM HumanResources.Employee as e
JOIN Person.Contact AS c ON e.ContactID = c.ContactID
JOIN DirectReports AS d ON e.ManagerID = d.EmployeeID
)
-- copy the required columns to the result of the function
INSERT @retFindReports
SELECT EmployeeID, Name, Title, EmployeeLevel, Sort
FROM DirectReports
RETURN
END;
GO
