getLastErrorObj() - return full status object db.getLogComponents() db.getMongo() get the server connection object db.getMongo().setSlaveOk() allow queries on a replication slave server db.getName() db.getPrevError() db.getProfilingLevel() - deprecated db.getProfilingStatus() - returns if...
将下面新文档替换ID为"6503466fc15bb4f0c6168128" 代码语言:shell AI代码解释 db.class.save({ "_id" : ObjectId("6503466fc15bb4f0c6168128"), "title" : "MongoDB", "description" : "MongoDB 是一个 Nosql 数据库", "by" : "Runoob", "url" : "http://www.aa.com", "tags" : [ "mon...
db.system.users.find() {“_id” : “fragment.admin”, “user” : “admin”, “db” : “fragment”, “credentials” : { “SCRAM-SHA-1” : { “iterationCount” : 10000, “salt” : “/QZtFAvcavqZIm15FmbToA==”, “storedKey” : “t91XZuIrnUYtuN1bG+hNg58R+w0=”, “serverKey...
{u 'job' : u 'nurse' , u '_id' : ObjectId( '554bd2e1e1382306bba8ade9' ),u 'name' : u 'Lucy' , u 'sex' : u 'female' } {u 'nationality' : u 'US' , u 'age' : 24, u '_id' : ObjectId( '554be1cce138230714d0ab0d' ),u 'name' : u 'Lucy' } 1. 2. 3. ...
db.getMongo() get the server connection object db.getMongo().setSlaveOk() allow this connection to read from the nonmaster member of a replica pair db.getName() db.getPrevError() db.getProfilingLevel() - deprecated db.getProfilingStatus() - returns if profiling is on and slow threshold...
Object用于内嵌文档。Null用于创建空值。Symbol符号。该数据类型基本上等同于字符串类型,但不同的是,它一般用于采用特殊符号类型的语言。Date日期时间。用UNIX 时间格式来存储当前日期或时间。你可以指定自己的日期时间:创建 Date 对象,传入年月日信息。Object ID对象 ID。用于创建文档的 ID。Binary Data二进制数据。
(2) 指定生成id > db.user.insert({_id:2,name:'wangwu',age:25}) WriteResult({ "nInserted" : 1 }) > db.user.find(); { "_id" : ObjectId("5d73077c71b815674de4d152"), "name" : "lisi", "age" : 22 } { "_id" : 2, "name" : "wangwu", "age" : 25 } ...
> db.col.find() { "_id" : ObjectId("617970fc286e9ff2b1250d70"), "title" : "Toby MongoDB", "description" : "this is MongoDB", "tags" : [ "mongodb", "database", "NoSQL" ], "likes" : 1 } > 我们也可以将数据定义为一个变量,如下所示:...
deprecated:false, platforms: [0,1,2], isDirectShellCommand:false, acceptsRawInput:false, shellCommandCompleter:undefined, help: [Function(anonymous)]Help } 集合帮助 您可以从mongosh控制台内部查看集合级别的信息。 这些帮助方法接受集合名称<collection>,但您也可以使用通用术语“集合”,甚至是不存在的集合...
deprecated. objectid 7 "objectid" boolean 8 "bool" date 9 "date" null 10 "null" regular expression 11 "regex" dbpointer 12 "dbpointer" deprecated. javascript 13 "javascript" symbol 14 "symbol" deprecated. javascript code with scope 15 "javascriptwithscope" deprecated in mongodb 4.4. 32-...