如何在PyMongo中删除MongoDB集合 [英] How to delete a MongoDB collection in PyMongo
本文介绍了如何在PyMongo中删除MongoDB集合的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
collection.remove()
或
collection.remove({})
但它不会删除集合。如何做到这一点?
推荐答案
Pymongo示例代码,注释作为说明:
from pymongo import MongoClient
connection = MongoClient('localhost', 27017) #Connect to mongodb
print(connection.database_names()) #Return a list of db, equal to: > show dbs
db = connection['testdb1'] #equal to: > use testdb1
print(db.list_collection_names()) #Return a list of collections in 'testdb1'
print("posts" in db.list_collection_names()) #Check if collection "posts"
# exists in db (testdb1)
collection = db['posts']
print(collection.count() == 0) #Check if collection named 'posts' is empty
collection.drop() #Delete(drop) collection named 'posts' from db and all documents contained.
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