mongod –help
mongod --dbpath path --auth //
mongo –u username –p password
use admin
db.addUser('admin','pwd') //
db.system.users.find() //
db.auth('admin','pwd') //
db.removeUser('mongodb') //
show users //
show dbs //
show collections // collection
db.printCollectionStats() // collection
db.printReplicationInfo() //
db.repairDatabase() //
db.setProfilingLevel(1) // profiling，0=off 1=slow 2=all
show profile // profiling
db.copyDatabase('mail_addr','mail_addr_tmp') //
db.mail_addr.drop() // collection
db.dropDatabase() //
db.foo.save({'name':'ysz','address':{'city':'beijing','post':100096},'phone':[138,139]}) //
db.user_addr.save({'Uid':'[email protected]','Al':['[email protected]','[email protected]']}) //
db.foo.update({'yy':5},{'$set':{'xx':2}},upsert=true,multi=true)
// query ， ，
db.foo.remove({'yy':5}) // yy=5
db.foo.remove() //
db.things.ensureIndex({firstname: 1, lastname: 1}, {unique: true});
// ：1(ascending),-1(descending)
db.user_addr.ensureIndex({'Al.Em': 1})//
db.deliver_status.getIndexes() //
db.deliver_status.getIndexKeys()
db.user_addr.dropIndex('Al.Em_1') //
db.foo.dropIndexes()
db.foo.find() //
db.foo.findOne() //
db.foo.find().skip(10)// 10
db.foo.find({'msg':'Hello 1'}).limit(10)// 10
db.deliver_status.find({'From':'[email protected]'}).sort({'Dt',-1})
// sort
db.deliver_status.find().sort({'Ct':-1}).limit(1)
db.user_addr.count()//count
db.foo.distinct('msg')// distinct
db.foo.find({"timestamp": {"$gte" : 2}})//>
db.foo.find({'address.city':'beijing'})//
$all,$exists,$mod,$ne,$in,$nin,$nor,$or,$and,$size,$type
db.things.find( { x : 3, y : "foo" } );
db.things.find({j: {$ne: 3}, k: {$gt: 10} });
db.collection.find({ "field" : { $lte: value } } );
db.collection.find({ "field" : { $gte: value } } );
db.collection.find({ "field" : { $lt: value } } );
db.collection.find({ "field" : { $gt: value1, $lt: value2 } } );
db.things.find( { a: { $all: [ 2, 3 ] } } );
db.things.find( { a : { $exists : true } } );
db.things.find( { a : { $mod : [ 10 , 1 ] } } )
db.things.find({j:{$in: [2,4,6]}});
db.things.find({j:{$nin: [2,4,6]}});
db.foo.find( { $or : [ { a : 1 } , { b : 2 } ] } )
db.foo.find( { $and: [ { a: 1 }, { a: { $gt: 5 } } ] }
db.things.find( { a : { $size: 1 } } );
db.things.find( { a : { $type : 2 } } ); // matches if a is a string
db.things.find( { a : { $type : 16 } } ); // matches if a is an int
db.customers.find( { name : { $regex : 'acme.*corp', $options: 'i' } } );
db.deliver_status.dataSize()// collection
db.deliver_status.stats() // colleciont
db.deliver_status.totalIndexSize()//
MongoDB
mongoexport --help
mongoexport -d foo -c t1 -o /data/t1.json
mongoimport --help
mongoimport -d foo -c t1 /data/t1.json