我已经开发了一个小的asp.net应用程序来将数据存储到sqlserverce中,如何在sqlserver中设置varbinary(max)ce.i已经编写了这样的代码
string filepath = Server.MapPath("~/App_Data/") + txtuname.Text + ".sdf";
SqlCeConnection conn = new SqlCeConnection(@"Data Source=" + filepath);
conn.Open();
SqlCeCommand cmdCreate = new SqlCeCommand("CREATE TABLE Mybusinessapp_Pictures (Id int IDENTITY(1,1)PRIMARY KEY, Name nchar(50),Description nvarchar(500),Data varbinary(510),ImageUrl nvarchar(500))", conn);
cmdCreate.ExecuteNonQuery();
MessageBox.Show("Table created:");
当我尝试向此插入数据时,它显示错误,如
The conversion is not supported. [ Type to convert from (if known) = nvarchar, Type to convert to (if known) = varbinary ]
有什么不对请帮助我......
答案 0 :(得分:1)
使用映像数据类型,SQL Server Compact不支持varbinary(MAX)