mongodb文档修改

MongoDB修改文档

MongoDB修改文档 一、文档替换文档替换其实在之前已经有讲过了，就是传入两个对象，第一个对象作为调节，第二个条件作为满足条件的文档修改的内容，例如：db.test.update({"name":"kevin-01"},{"name":"kevin"});修改前面条件为，后面为...

MongoDB修改,删除文档踩坑记!

1 更新文档语法结构db.集合名称.update(条件,修改后的数据)修改_id为1的记录，点赞数为1000，输入以下语句：执行后发现，这条文档除了thumbup字段其它字段都不见了。为了解决这个问题，我们需要使用修改器$set来实现，命令如下：db.comment...

mongodb内嵌文档查找和修改问题

数据的格式是这样的:现在我想的是1,查询people_id 为 1 且 privilege 为 5的内嵌文档,mongodb的查询命令怎么写的啊2,更新people_id 为 2 且权限为 id为2的内嵌文档的name字段值为 6,更新命令怎么写的啊查询我用db.find({"people_id":1,...

mongodb如何批量修改内嵌文档的属性？

如何用一条命令把message数组中2个对象元素中的status属性都改成false？是否只能在客户端做逻辑处理：

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云数据库 MongoDB 版

支持ReplicaSet和Sharding两种部署架构，具备安全审计，时间点备份等多项企业能力。在互联网、物联网、游戏、金融等领域被广泛采用。

产品详情

管理控制台

在线咨询