PROGRAMMING EXAMPLES

M ONGODB FIND In MongoDB we use the find() and find_one() methods to find data in a collection. Just like the SELECT statement is used to find data in a table in a MySQL database. Find One To select data from a collection in MongoDB, we can use the find_one() method. The find_one() method returns the first occurrence in the selection. Find the first document in the customers collection: import pymongo myclient = pymongo.MongoClient("mongodb://localhost:27017/") mydb = myclient["mydatabase"] mycol = mydb["customers"] x = mycol.find_one() print(x) Find All To select data from a table in MongoDB, we can also use the find() method. The find() method returns all occurrences in the selection. The first parameter of the find() method is a query object. In this example we use an empty query object, which selects all documents in the collection. No parameters in the find() method gives you the same result as SELECT * in MySQL. Return all