引用PyMongo
>>> import pymongo
創(chuàng)建連接Connection
>>> import pymongo
>>> conn = pymongo.Connection('localhost',27017)
或>>> from pymongo import Connection
>>> conn = Connection('localhost',27017)
創(chuàng)建Connection時(shí)，指定host及port參數(shù)
>>> import pymongo
>>> conn = pymongo.Connection(host='127.0.0.1',port=27017)
連接數(shù)據(jù)庫
>>> db = conn.ChatRoom
或
>>> db = conn['ChatRoom']
連接聚集
>>> account = db.Account
或
>>> account = db["Account"]
查看全部聚集名稱
>>> db.collection_names()
查看聚集的一條記錄>>> db.Account.find_one()
>>> db.Account.find_one({"UserName":"keyword"})
查看聚集的字段
>>> db.Account.find_one({},{"UserName":1,"Email":1})
{u'UserName': u'libing', u'_id': ObjectId('4ded95c3b7780a774a099b7c'), u'Email': u'libing@35.cn'}
>>> db.Account.find_one({},{"UserName":1,"Email":1,"_id":0})
{u'UserName': u'libing', u'Email': u'libing@35.cn'}
查看聚集的多條記錄
>>> for item in db.Account.find():
item
>>> for item in db.Account.find({"UserName":"libing"}):
item["UserName"]
查看聚集的記錄統(tǒng)計(jì) >>> db.Account.find().count()
>>> db.Account.find({"UserName":"keyword"}).count()
聚集查詢結(jié)果排序
>>> db.Account.find().sort("UserName") --默認(rèn)為升序
>>> db.Account.find().sort("UserName",pymongo.ASCENDING) --升序
>>> db.Account.find().sort("UserName",pymongo.DESCENDING) --降序
聚集查詢結(jié)果多列排序
>>> db.Account.find().sort([("UserName",pymongo.ASCENDING),("Email",pymongo.DESCENDING)])
添加記錄
>>> db.Account.insert({"AccountID":21,"UserName":"libing"})
修改記錄
>>> db.Account.update({"UserName":"libing"},{"$set":{"Email":"libing@126.com","Password":"123"}})
刪除記錄
>>> db.Account.remove() -- 全部刪除
>>> db.Test.remove({"UserName":"keyword"})
