SyntaxError:无效的属性ID-MongoDB [英] SyntaxError: invalid property id - MongoDB

问题描述

我来自Oracle PLSQL背景，我才刚刚开始学习MongoDB命令.

I am from an Oracle PLSQL background and I have just started learning MongoDB commands.

   >db.Employee.find()
   { "_id" : 10, "EmployeeName" : "Smith" }
   { "_id" : 20, "EmployeeName" : "Nandhi" }
   { "_id" : 30, "EmployeeName" : "Rajan" }
   { "_id" : 50, "EmployeeName" : "Raju" }

我需要查询以下文件:

  WHERE EmployeeName = "Smith" OR (EmployeeName = "Rajan" AND _id = 30);

我写了如下对应的代码:

I have written the corresponding code as below:

  db.Employee.find({$or:[{"EmployeeName":"Smith",{"EmployeeName":"Rajan","_id":30}}]})

错误消息

2019-03-13T22:48:26.123 + 0530 E查询[js]语法错误:无效 属性ID @(shell):1:47

2019-03-13T22:48:26.123+0530 E QUERY [js] SyntaxError: invalid property id @(shell):1:47

推荐答案

您的$or术语必须位于单独的对象中:

Your $or terms need to be in separate objects:

db.Employee.find({$or:[{"EmployeeName":"Smith"}, {"EmployeeName":"Rajan", "_id":30}]})

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