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How to use Set in Salesforce

Apex provides collections such as List, Set, Map. These are similar to arrays, but these collections have advanced features and easier methods than an array. Set is a collection of unordered elements and don't contain any duplicate values.

Multifactor Authentication with Django MFA using Google Authenticator

Use Django Multi-Factor Authentication method to verify user identity with more than one authentication methods. It can be used for user login, any transactional methods etc.

Full text search in mongodb

Full text search is a custom implementation created by the MongoDB developers as a specific index type

Full text search as an index type when creating new indexes, just like any other.
1.Indexing of multiple fields, with weighting to give different fields higher priority.
2.Support for Latin based languages initially, with plans for other character sets later.

MongoDB CRUD operations with Python (Pymongo)

MongoDB with Python - Connection establishment, Create, Update, Retrieve and Delete operations explained with sample code.

Advanced Querying in MongoDB

Advanced Queries of MongoDB: Inserting records to the database and retrieving data from database.
1. Wrapped Queries: Like, sort, limit, count.
2. Query Using Modifiers: set, increment, push,Set Elements in Array, AddToSet Modifier, each.

group() vs aggregation framework vs MapReduce in mongodb

The group() command, Aggregation Framework and MapReduce are collectively aggregation features of MongoDB. group(): Group Performs simple aggregation operations on a collection documents. Group is similar to GROUP_BY in mysql. Output format : Returns result set inline. Sharding: Its not support in shared environment. Limitations:

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