我试图根据link查询asp.net网站中的个人资料表的属性。首先,我定义了一个CLR函数:
using System.Collections;
using System.Collections.Generic;
using System.Data.SqlTypes;
using System.Linq;
using System.Text.RegularExpressions;
using Microsoft.SqlServer.Server;
/// <summary>
/// Summary description for UserDefinedFunctions
/// </summary>
public class UserDefinedFunctions
{
private static readonly Regex ProfileRegex = new Regex(@"([a-zA-Z]+):[A-Z]:(\d+):(\d+)");
[SqlFunction(FillRowMethodName = "FillProfileRow", TableDefinition = "Property nvarchar(250), Value nvarchar(2000)")]
public static IEnumerable ParseProfileString(SqlString names, SqlString values)
{
var dict = ProfileRegex
.Matches(names.Value)
.Cast<Match>()
.ToDictionary(
x => x.Groups[1].Value,
x => values.Value.Substring(int.Parse(x.Groups[2].Value), int.Parse(x.Groups[3].Value)));
return dict;
}
public static void FillProfileRow(object obj, out string Property, out string Value)
{
var x = (KeyValuePair<string, string>)obj;
Property = x.Key;
Value = x.Value;
}
}
但是当我尝试创建一个视图时,我收到一个错误,即CLR函数(ParseProfileString)是一个未解析的引用。
CREATE VIEW UsersView
AS
SELECT *
FROM (
SELECT u.UserId
,u.Username
,m.Email
,f.Property
,f.Value
FROM aspnet_Profile p
INNER JOIN aspnet_Users u ON p.UserId = u.UserId
INNER JOIN aspnet_Membership m ON m.UserId = u.Userid
INNER JOIN aspnet_Applications a ON a.ApplicationId = m.ApplicationId
CROSS APPLY ParseProfileString(p.PropertyNames, p.PropertyValuesString) f
WHERE a.ApplicationName = 'MyApplication'
) src
pivot(min(value) FOR property IN (
-- list your profile property names here
FirstName, LastName, BirthDate
)) pvt