Python操作mongodb数据库进行模糊查询操作示例
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本文实例讲述了Python操作mongodb数据库进行模糊查询操作。分享给大家供大家参考,具体如下:
# -*- coding: utf-8 -*-
import pymongo
import re
from pymongo import MongoClient
#创建连接
#10.20.66.106
client = MongoClient('10.20.4.79',27017)
#client = MongoClient('10.20.66.106',27017)
db_name = 'ta'
db = client[db_name]
假设mongodb数据库中school 集合中有一些数据记录
{ "_id" : 1,"zipcode" : "63109","students" : { "comments" : "python abc" } }
{ "_id" : 2,"zipcode" : "63110","students" : { "comments" : "python abc" } }
{ "_id" : 3,"students" : { "comments" : "python abc" } }
{ "_id" : 4,"students" : { "comments" : "python abc" } }
{ "_id" : 5,"students" : { "comments" : "python abc" } }
{ "_id" : 7,"students" : { "comments" : "python abc" },"school" : "102 python abc" }
{ "_id" : 8,"school" : "100 python abc xyz" }
{ "_id" : 9,"zipcode" : "100","students" : { "name" : "mike","age" : 12,"comments" : "python" } }
{ "_id" : 10,"students" : { "name" : "Marry","age" : 42,"comments" : "this is a python" } }
{ "_id" : 11,"students" : { "name" : "joe","age" : 92,"comments" : "this is a python program" } }
{ "_id" : 12,"students" : { "name" : "joedd","age" : 34,"comments" : "python is a script language" } }
现在要对students中comments的数据进行模糊查询,python中模糊查询要借助正则表达式: 1、查询comments中包含"abc"的记录:
for u in db.school.find({'students.comments':re.compile('abc')}):
print u
结果如下:
2、查询comments中包含"this is"的记录:
for u in db.school.find({'students.comments':re.compile('this is')}):
print u
结果如下:
由此可见,模糊查询要用到re模块,查询条件利用 更多关于Python相关内容感兴趣的读者可查看本站专题:《Python常见数据库操作技巧汇总》、《Python数学运算技巧总结》、《Python数据结构与算法教程》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》、《Python入门与进阶经典教程》及《Python文件与目录操作技巧汇总》 希望本文所述对大家Python程序设计有所帮助。 您可能感兴趣的文章:
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