Actually we need to migration from SQL server to MongoDB. Can we access all the procedures and functions which is available in SQL server. If yes please guide me how to implement those things in MongoDB.
MongoDB is not a drop in replacement as it is a NoSQL document oriented database. It is actually much more flexible. I recommend that you take some courses at https://university.mongodb.com/.
There is one course that go over the differences between MongoDB and SQL.
Take a look at MongoSyphon, which was written by a MongoDB employee (John Page). It provides the capabilities to load data from an SQL database.