假设以下定义:如何在CLR UDF中返回nvarchar(max)?
/// <summary>
/// Replaces each occurrence of sPattern in sInput with sReplace. This is done
/// with the CLR:
/// new RegEx(sPattern, RegexOptions.Multiline).Replace(sInput, sReplace).
/// The result of the replacement is the return value.
/// </summary>
[SqlFunction(IsDeterministic = true)]
public static SqlString FRegexReplace(string sInput, string sPattern,
string sReplace)
{
return new Regex(sPattern, RegexOptions.Multiline).Replace(sInput, sReplace);
}
在nvarchar(max)
值传递用于sInput
具有长度> 4000将导致被截断的值(即,在调用此UDF的结果是nvarchar(4000)
而非nvarchar(max)
您是明星,先生:) – 2010-12-14 09:16:58