LINQ从不同的数据库或DataaContext连接表

Question

var possibleTPMs = (from ui in db1.Users
                                from org in db2.Orgs.Where(o => o.OrgId == ui.OrgId && !o.DeletedFlag).DefaultIfEmpty()

                                where !ui.DeletedFlag && ui.ActiveFlag && ui.OrgId == 1 && ui.UserId != 1

                                select new { ui.UserId, ui.LastName, ui.FirstName }).ToList();

上面是示例LINQ但有错误，我如何加入来自两个不同数据库的这两个表。

Answer 1

加入两张桌子＆＃39;你只需使用以下语法加入它们。你不应该使用wheres

进行任何复杂的连接

var possibleTPMs = (from ui in db1.Users join org in db2.Orgs on ui.id equals org.id select new { ui.UserId, ui.LastName, ui.FirstName }).ToList();