SQL vs MongoDB: Mapping Operations and Concepts Explained

Relational databases use standard SQL statements, whereas MongoDB is a document‑oriented database with different concepts and operations. The tables below map SQL commands to their MongoDB equivalents, helping readers quickly become familiar with MongoDB’s approach.

Concept Name Correspondence

SQL concepts such as tables, rows, and columns correspond to MongoDB collections and documents.

SQL vs MongoDB Operations

Assume a relational users table and a MongoDB users collection containing documents like:

{
  _id: ObjectId("509a8fb2f3f4948bd2f983a0"),
  user_id: "abc123",
  age: 55,
  status: "A"
}

Create / Alter Table

Insert

Select

EXPLAIN

Update

Delete

All content is compiled from the official MongoDB documentation: https://docs.mongodb.com/manual/reference/sql-comparison/.