在我的数据库应用程序中,当我尝试将页面附加到站点时,我收到以下错误:
System.InvalidOperationException: Can't perform Create, Update or Delete operations on 'Table(Junc_Page_Site)' because it has no primary key.
我打算通过使用联结表将一个页面添加到多个站点。
下面是有问题的三个表 (T-SQL) 的架构。任何建议将被认真考虑!
CREATE TABLE Site (
Id INTEGER NOT NULL IDENTITY ,
FkSiteId INTEGER ,
Name NVARCHAR(64) NOT NULL ,
Domain NVARCHAR(128) ,
Theme NVARCHAR(32) ,
ThemeVariation NVARCHAR(32) ,
PRIMARY KEY(Id) ,
FOREIGN KEY(FkSiteId)
REFERENCES Site(Id));
GO
CREATE TABLE Page (
Id INTEGER NOT NULL IDENTITY ,
Title NVARCHAR(64) NOT NULL ,
Description NVARCHAR(256) NOT NULL ,
Keywords NVARCHAR(1024) NOT NULL ,
ScriptName NVARCHAR(64) ,
PRIMARY KEY(Id));
GO
CREATE TABLE Junc_Page_Site (
FkPageId INTEGER NOT NULL ,
FkSiteId INTEGER NOT NULL ,
FOREIGN KEY(FkSiteId)
REFERENCES Site(Id),
FOREIGN KEY(FkPageId)
REFERENCES Page(Id));
GO