CLR UDF 返回 Varbinary(MAX)
SQL CLR 用户定义函数是否可以返回数据类型 varbinary(MAX)?
Is it possible for a SQL CLR User-Defined Function to return the data type varbinary(MAX)?
在它提到的文档中:
标量值函数返回的输入参数和类型可以是 SQL Server 支持的任何标量数据类型,但 rowversion、text、ntext、image、timestamp、table 或 cursor 除外."- 他们没有提到 varbinary,但我不确定...
"The input parameters and the type returned from a scalar-valued function can be any of the scalar data types supported by SQL Server, except rowversion, text, ntext, image, timestamp, table, or cursor." - they don't mention varbinary, but I'm not sure...
我有一些来自 .NET 端的字节数组数据,我需要从 CLR 返回到 SQL Server,并且我试图避免使用来自存储过程的输出参数(这就是我现在正在测试中).
I have some byte-array data from the .NET side that I need to return to SQL Server from the CLR, and I'm trying to avoid having to do it with an output parameter from a stored procedure (this is how I have it working in test now).
谢谢!
推荐答案
如果您将其定义为返回一个 SqlBytes 数据类型,这应该正确映射到 SQL Server 中的 varbinary(MAX)
.
If you define it as returning a SqlBytes data type, this should correctly map to varbinary(MAX)
in SQL Server.
[SqlFunction]
public static SqlBytes Function1()
{
return new SqlBytes(Encoding.UTF8.GetBytes("Hello world."));
}
虽然您也可以使用 SqlBinary 数据类型,如果您通过 Visual Studio 部署,它将映射到 varbinary(8000)
而不是 varbinary(MAX)
.
Whilst you can also use the SqlBinary data type, if you deploy via Visual Studio, it will be mapped onto varbinary(8000)
rather than varbinary(MAX)
.
相关文章