日期:2014-05-16 浏览次数:20462 次
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本文是第一节Create Database Objects创建数据库对象。
第一部分:Create and alter tables using T-SQL syntax (simple statements).May include but not limited to: create tables without using the built in tools; ALTER; DROP; ALTER COLUMN; CREATE 用T-SQL语句创建修改表(简易叙述)。可能包含并不仅限于:不使用内建工具创建,修改,删除表;创建,修改,删除列;
创建表:CREATE TABLE Test(ID INT IDENTITY(1,1) PRIMARY KEY,Name VARCHAR(100))
删除表:DROP TABLE Test3
修改表删除列:alter table test drop column name
参考:http://msdn.microsoft.com/en-us/library/ms174979(v=sql.110).aspx
http://msdn.microsoft.com/en-us/library/ms173790(v=sql.110).aspx
http://msdn.microsoft.com/en-us/library/ms190273(v=sql.110).aspx
第二部分:Create and alter views (simple statements). May include but not limited to: create indexed views; create views without using the built in tools; CREATE, ALTER, DROP 创建修改视图(简易叙述)。可能包含并不仅限于:不使用内建工具创建,修改,删除视图;创建带索引视图。
创建修改视图:
CREATE/ALTER VIEW TestView
AS
SELECT id,testid FROM test
删除视图:
DROP VIEW TestView
为视图创建索引:
CREATE UNIQUE CLUSTERED INDEX NIX_TestView_testid
ON TestView
(
testid
)
注意:视图需要设置WITH SCHEMABINDING
ALTER VIEW TestView
WITH SCHEMABINDING
AS
SELECT id,testid,name FROM test
(error: Cannot schema bind view 'TestView' because name 'test' is invalid for schema binding. Names must be in two-part format and an object cannot reference itself.
)
更改视图设置选项WITH SCHEMABINDING出错:此视图不能设置SCHEMABINDING。表名必须是两部分格式并且对象不能引用本身。
正确语句:
VIEW TestView
WITH SCHEMABINDING
AS
SELECT id,testid FROM dbo.test
删除视图索引:DROP INDEX 视图名.索引名,如DROP INDEX TestView.NIX_TestView_id
参考:http://msdn.microsoft.com/en-us/library/ms187956(v=sql.110).aspx
http://msdn.microsoft.com/en-us/library/ms173846(v=sql.110).aspx
http://msdn.microsoft.com/en-us/library/ms173492(v=sql.110).aspx
http://msdn.microsoft.com/en-us/library/ms191432(v=sql.110).aspx