检测SqlServer中某张表是否存在

Create PROCEDURE up_TableExists
 @tableName nvarchar(50)
AS
BEGIN
 declare @sql nvarchar(max);
 set @sql = 'select COUNT(*) from sysobjects where id=object_id(N''' + @tableName + ''') and OBJECTPROPERTY(id,N''IsUserTable'')=1';
 print @sql
 exec(@sql)
END
GO
c#调用这个存储过程，返回1则存在，返回0则表不存在