数据样例: _id baiducom intelligences apivoid host baiducom create_time 2022-10-25 1830查询mongodb中_id为baiducomintelligencesapivoid字段是否存在
可以使用以下代码查询:
from pymongo import MongoClient
client = MongoClient('mongodb://localhost:27017/')
db = client['your_database_name']
collection = db['your_collection_name']
query = {"_id": "baidu.com", "intelligences.apivoid": {"$exists": True}}
result = collection.find_one(query)
if result:
print("intelligences.apivoid exists for _id=baidu.com")
else:
print("intelligences.apivoid does not exist for _id=baidu.com")
其中,"$exists": True 表示查询该字段是否存在。如果查询到结果,则说明该字段存在;否则,说明该字段不存在
原文地址: https://www.cveoy.top/t/topic/cPff 著作权归作者所有。请勿转载和采集!