在所有集合中查找值，然后在mongodb中删除该值

Question

我有几个收藏集1：

{
Pid: 111,
Flag: true,
Uploaded: [
    { 
         Name: "abc"
     },
    {
         Name: "def"
     },
    {
         Name: "gig"
     }
]
}

Collection2：

{
Pid: 113,
Flag: false,
Uploaded: [
    { 
         Name: "abc"
     },
    {
         Name: "hjk "
     },
    {
         Name: "xyz"
     }
]
}

Collection3：

{
Pid: 114,
Flag: true,
Uploaded: [
    { 
         Name: "money"
     },
    {
         Name: "GUI"
     },
    {
         Name: "abc"
     }
]
}

我想查找所有具有uploaded.name ="abc"的集合，并只想删除该集合的特定数组。

输出应为：

Collection1：

{
Pid: 111,
flag: true,
Uploaded: [
    {
         Name: "def"
     },
    {
         Name: "gig"
     }
]
}

Collection2：

{
Pid: 113,
Flag: false,
Uploaded: [
    {
         Name: "hjk "
     },
    {
         Name: "xyz"
     }
]
}

Collection3：

{
Pid: 114,
Flag: true,
Uploaded: [
    { 
         Name: "money"
     },
    {
         Name: "GUI"
     }
]
}

Answer 1

您将要使用$pull更新参数

看起来像

db.myCollection.update({$in: {Uploaded: {Name: "abc"}}}, {$pull: {Uploaded: {Name: "abc"}}}, {multi: true})