先看集合post中文档信息：
|
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5
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7
8
9
10
11
|
> db.post.
find
();
{
"_id"
: ObjectId(
"54a51cfd7f46906f81b7adcd"
),
"bar"
:
"baz"
}
{
"_id"
: 0 }
{
"_id"
: 1 }
{
"_id"
: 2 }
{
"_id"
: 5,
"test1"
: 0 }
{
"_id"
: 4,
"test2"
: 2 }
{
"_id"
: 3,
"test3"
: 3 }
{
"_id"
: 6,
"test5"
: 5 }
{
"_id"
: 7,
"test1"
: 1 }
{
"_id"
: 8,
"test1"
: 1 }
|
删除指定的文档：
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5
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11
12
|
> db.post.remove({
"_id"
:5});
WriteResult({
"nRemoved"
: 1 })
> db.post.
find
();
{
"_id"
: ObjectId(
"54a51cfd7f46906f81b7adcd"
),
"bar"
:
"baz"
}
{
"_id"
: 0 }
{
"_id"
: 1 }
{
"_id"
: 2 }
{
"_id"
: 4,
"test2"
: 2 }
{
"_id"
: 3,
"test3"
: 3 }
{
"_id"
: 6,
"test5"
: 5 }
{
"_id"
: 7,
"test1"
: 1 }
{
"_id"
: 8,
"test1"
: 1 }
|
删除所有｛“test1”：1｝的文档：
|
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11
|
> db.post.remove({
"test1"
:1});
WriteResult({
"nRemoved"
: 2 })
> db.post.
find
();
{
"_id"
: ObjectId(
"54a51cfd7f46906f81b7adcd"
),
"bar"
:
"baz"
}
{
"_id"
: 0 }
{
"_id"
: 1 }
{
"_id"
: 2 }
{
"_id"
: 4,
"test2"
: 2 }
{
"_id"
: 3,
"test3"
: 3 }
{
"_id"
: 6,
"test5"
: 5 }
>
|
删除整个post集合：
|
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5
|
> db.post.drop()
true
> show collections
system.indexes
>
|
本文转自 bannerpei 51CTO博客，原文链接：http://blog.51cto.com/281816327/1598301，如需转载请自行联系原作者
