mongodb的命令:
启动服务
./bin/mongod -f ./conf/mongod.conf
启动 命令行
./bin/mongo localhost:12345
> db
test
> use local
switched to db local
> db.createCollection("mycoll", {capped:true, size:100000})
{
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(0, 0),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(0, 0)
}初始化：
rs.initiate()
{
"info2" : "no configuration specified. Using a default configuration for the set",
"me" : "localhost:12345",
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(1599893065, 1),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(1599893065, 1)
}
数据库
查看数据库
rs0:SECONDARY> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
db.col.findOne()
null
创建一个db：’
rs0:PRIMARY> use jinghang
switched to db jinghang
rs0:PRIMARY> db
jinghang
rs0:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
rs0:PRIMARY> db.jinghang.insert({"name":"景航教程"})
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
jinghang 0.000GB
local 0.000GB删除db:
rs0:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
jinghang 0.000GB
local 0.000GB
rs0:PRIMARY> use jinghang
switched to db jinghang
rs0:PRIMARY> db.dropDatabase()
{
"dropped" : "jinghang",
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(1599901507, 2),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(1599901507, 2)
}
rs0:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
创建集合：
rs0:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
jinghang 0.000GB
local 0.000GB
rs0:PRIMARY> use test
switched to db test
rs0:PRIMARY> db.createCollection("jinghang")
{
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(1599901881, 1),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(1599901881, 1)
}
rs0:PRIMARY> show collections
jinghang
rs0:PRIMARY> db.createCollection("mycol", { capped : true, autoIndexId : true, size :
... 6142800, max : 10000 } )
{
"note" : "The autoIndexId option is deprecated and will be removed in a future release",
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(1599901909, 2),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(1599901909, 2)
}
rs0:PRIMARY> db.mycol2.insert({"name" : "景航教程"})
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> show collections
jinghang
mycol
mycol2
rs0:PRIMARY>
删除集合：
rs0:PRIMARY> use mydb
switched to db mydb
rs0:PRIMARY> show collections
rs0:PRIMARY> db.mycol2.insert({"name" : "景航教程"})
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> db.mycol3.insert({"name" : "景航教程"})
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> db.mycol4.insert({"name" : "景航教程"})
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> show collections
mycol2
mycol3
mycol4
rs0:PRIMARY> db.mycol2.drop()
true
rs0:PRIMARY> show collections
mycol3
mycol4
rs0:PRIMARY>
插入文档：
rs0:PRIMARY> db.col.insert({title: 'MongoDB 教程',
... description: 'MongoDB 是一个 Nosql 数据库',
... by: '景航教程',
... url: 'http://www.jinghang.com',
... tags: ['mongodb', 'database', 'NoSQL'],
... likes: 100
... })
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> show collections
col
mycol3
mycol4
rs0:PRIMARY> db.col.find()
{ "_id" : ObjectId("5f5c92e3da33b31d5e0f590b"), "title" : "MongoDB 教程", "description" : "MongoDB 是一个 Nosql 数据库", "by" : "景航教程", "url" : "http://www.jinghang.com", "tags" : [ "mongodb", "database", "NoSQL" ], "likes" : 100 }
rs0:PRIMARY> db.col.portI().find()
uncaught exception: TypeError: db.col.portI is not a function :
@(shell):1:1
rs0:PRIMARY> document=({title: 'MongoDB 教程',
... description: 'MongoDB 是一个 Nosql 数据库',
... by: '景航教程',
... url: 'http://www.jinghang.com',
... tags: ['mongodb', 'database', 'NoSQL'],
... likes: 100});
{
"title" : "MongoDB 教程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
rs0:PRIMARY> db.col.insert(document)
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY>
更新文档：
rs0:PRIMARY> db.col.insert({
... title: 'MongoDB 教程',
... description: 'MongoDB 是一个 Nosql 数据库',
... by: '景航教程',
... url: 'http://www.jinghang.com',
... tags: ['mongodb', 'database', 'NoSQL'],
... likes: 100})
WriteResult({ "nInserted" : 1 })
rs0:PRIMARY> db.col.update({'title':'MongoDB 教程'},{$set:{'title':'MongoDB教'}})
WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 1 })
rs0:PRIMARY> db.col.find().pretty()
{
"_id" : ObjectId("5f5c92e3da33b31d5e0f590b"),
"title" : "MongoDB教",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c9340da33b31d5e0f590c"),
"title" : "MongoDB 教程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c93c6da33b31d5e0f590d"),
"title" : "MongoDB 教程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
rs0:PRIMARY> db.col.update({'title':'MongoDB 教程'},{$set:{'title':'MongoDB 程'}},{multi:true})
WriteResult({ "nMatched" : 2, "nUpserted" : 0, "nModified" : 2 })
rs0:PRIMARY> db.col.find().pretty()
{
"_id" : ObjectId("5f5c92e3da33b31d5e0f590b"),
"title" : "MongoDB教",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c9340da33b31d5e0f590c"),
"title" : "MongoDB 程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c93c6da33b31d5e0f590d"),
"title" : "MongoDB 程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
rs0:PRIMARY>替换：
rs0:PRIMARY> db.col.save({
... "_id" : ObjectId("56064f89ade2f21f36b03136"),
... "title" : "MongoDB",
... "description" : "MongoDB 是一个 Nosql 数据库",
... "by" : "jinghang",
... "url" : "http://www.jinghang.com",
... "tags" : [
... "mongodb",
... "NoSQL"
... ],
... "likes" : 110})
WriteResult({
"nMatched" : 0,
"nUpserted" : 1,
"nModified" : 0,
"_id" : ObjectId("56064f89ade2f21f36b03136")
})
rs0:PRIMARY> db.col.find().pretty()
[
"mongodb",
"NoSQL"
],
"likes" : 110}{
"_id" : ObjectId("5f5c92e3da33b31d5e0f590b"),
"title" : "MongoDB教",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c9340da33b31d5e0f590c"),
"title" : "MongoDB 程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c93c6da33b31d5e0f590d"),
"title" : "MongoDB 程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("56064f89ade2f21f36b03136"),
"title" : "MongoDB",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "jinghang",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"NoSQL"
],
"likes" : 110
}
rs0:PRIMARY>
rs0:PRIMARY> {
... "_id" : ObjectId("56064f89ade2f21f36b03136"),
... "title" : "MongoDB",
... "description" : "MongoDB 是一个 Nosql 数据库",
... "by" : "jinghang",
... "url" : "http://www.jinghang.com",
... "tags" : [
... "mongodb",
... "NoSQL"
... ],
... "likes" : 110}
uncaught exception: SyntaxError: unexpected token: ':' :
@(shell):2:14
rs0:PRIMARY> db.col.find().pretty()
{
"_id" : ObjectId("5f5c92e3da33b31d5e0f590b"),
"title" : "MongoDB教",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c9340da33b31d5e0f590c"),
"title" : "MongoDB 程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("5f5c93c6da33b31d5e0f590d"),
"title" : "MongoDB 程",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "景航教程",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"database",
"NoSQL"
],
"likes" : 100
}
{
"_id" : ObjectId("56064f89ade2f21f36b03136"),
"title" : "MongoDB",
"description" : "MongoDB 是一个 Nosql 数据库",
"by" : "jinghang",
"url" : "http://www.jinghang.com",
"tags" : [
"mongodb",
"NoSQL"
],
"likes" : 110
}
rs0:PRIMARY>