SQLServer 2008 新增T-SQL 简写语法
时间:2014-07-02 01:52 来源:linux.it.net.cn 作者:IT网
1.定义变量时可以直接赋值
DECLARE @Id int = 5
2.Insert 语句可以一次插入多行数据
INSERT INTO StateList VALUES(@Id, 'WA'), (@Id + 1, 'FL'), (@Id + 2, 'NY')
3.支持+=操作符
SET StateId += 1
完整示例如下：
复制代码代码如下:
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
结果集为：
StateId StateName
------- ---------
6 WA
7 FL
8 NY
(3 row(s) affected) (责任编辑：IT)
| 1.定义变量时可以直接赋值 DECLARE @Id int = 5 2.Insert 语句可以一次插入多行数据 INSERT INTO StateList VALUES(@Id, 'WA'), (@Id + 1, 'FL'), (@Id + 2, 'NY') 3.支持+=操作符 SET StateId += 1 完整示例如下：
复制代码代码如下:
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 结果集为： StateId StateName ------- --------- 6 WA 7 FL 8 NY (3 row(s) affected) (责任编辑：IT) |