MongoDB / Basic: document foundations

MongoDB โ€” Basic: document foundations

Model typed facts and query or change bounded documents precisely.

6 lessons ยท No account required

What you will learn

  • Explain BSON, embedding, references, missing values and arrays.
  • Use scoped filters, projections and atomic updates.

  1. MongoDB server, shell and BSON documents

    Place a document query inside MongoDBโ€™s architecture. Separate the server, database, collection, driver and mongosh before interpreting data or connection behavior.

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  2. Modeling embedded and referenced data

    Choose document boundaries from access patterns and bounded growth. Explain embedding, references and duplication without treating flexible schema as no design.

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  3. BSON types, dates and exact numbers

    Preserve types across shell, driver and API boundaries. Distinguish exact decimal money, integer identifiers, UTC dates and missing or explicit null fields.

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  4. Filters, projection, sorting and pagination

    State exactly which documents and fields a client should receive. Combine filters safely and choose stable cursors without assuming natural collection order.

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  5. Arrays and embedded-document queries

    Match the intended array element and preserve update scope. Distinguish separate matching elements, positional updates and array expansion in reports.

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  6. Inserts, updates, deletes and atomic filters

    Make writes express their own business preconditions. Distinguish update operators, replacement, upsert, acknowledgment and retry identity.

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