Most effective way to grab a table name in the following string

string q = @"SELECT [t0].[Id], [t0].[CODE] AS [arg0], [t0].[DESC] AS [arg1] FROM [SchemaName].[TableName] AS [t0] WHERE ([t0].[Id] <> @p0)";
            int fromIndex = q.IndexOf("FROM")+5;
            int asIndex = q.IndexOf("AS",fromIndex);
            q = q.Substring(fromIndex, asIndex - fromIndex);

string data = "SELECT [t0].[Id], [t0].[CODE] AS [arg0], [t0].[DESC] AS [arg1] FROM [SchemaName].[TableName] AS [t0] WHERE ([t0].[Id] <> @p0)";
Regex re = new Regex(@"FROM (([w+].?){2}) AS");
Match m = re.Match(data);
if (m.Success){ Console.WriteLine(m.Groups[1]); }

string data = "SELECT [t0].[Id], [t0].[CODE] AS [arg0], [t0].[DESC] AS [arg1] FROM [SchemaName].[TableName] AS [t0] WHERE ([t0].[Id] <> @p0)";
Regex re = new Regex(@"FROM [(w+)].[(w+)] AS");
Match m = re.Match(data);
if (m.Success){ Console.WriteLine("{0}.{1}", m.Groups[1], m.Groups[2]); }