SQLServer 2008 新增 += 简写语法

CREATE TABLE StateList(StateId int,StateName char(2)) 
GO 
-- Declare variable and assign a value in a single statement 
DECLARE @Id int = 5 
-- Insert multiple rows in a single statement with IDs 5,6,and 7 
INSERT INTO StateList VALUES(@Id,'WA'),(@Id + 1,'FL'),(@Id + 2,'NY') 
-- Use compound assignment operator to increment ID values to 6,7,and 8 
UPDATE StateList 
SET StateId += 1 
-- View the results 
SELECT * FROM StateList
插入后
StateId	StateName
5	WA
6	FL
7	NY
更新后
StateId	StateName
6	WA
7	FL
8	NY