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Home > Database > Mysql Tutorial > MongoDB学习 (六)：查询

MongoDB学习 (六)：查询

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Release： 2016-06-07 17:39:00
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本文将介绍操作符的使用，配合操作符，我们可以执行更加复杂的操作。 目录 查询操作 "、""、 ""、""、""、""、""、""、""、""、""、"" 1.1 集合查询方法 find() db.collection.find() 查询集合中文档并返回结果为游标的文档集合。 语法：db.collection.find(

　本文将介绍操作符的使用，，配合操作符，我们可以执行更加复杂的操作。

目录
  • 查询操作
  • "、""、
  • ""、""、""、""、""、""、""、""、""、""

    •  

      1.1 集合查询方法 find()

    db.collection.find()  查询集合中文档并返回结果为游标的文档集合。

    语法：db.collection.find(query, projection)

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    mongodb study Inquire
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