Namespace

As explained in MongoDB 8.0 in Action, Third Edition

A namespace is MongoDB's unique identifier for a collection formed by combining its database name and collection name with a dot.

How MongoDB 8.0 in Action, Third Edition covers it

How deep it goes

Defines the database-qualified naming format, demonstrates its output, and states the 255-byte limit.

Examples

Uses sample_mflix.embedded_movies and db.getCollection("embedded_movies") as concrete namespace examples.

What it assumes

Assumes access to a MongoDB deployment and basic use of mongosh databases and collections.

What you can do after

Operate mongosh to list collections, inspect metadata, and display a collection's fully qualified namespace.

How it connects

Connects namespaces with databases, collections, collection metadata, permissions, and indexes.

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  The Quick Python Book, Fourth EditionA global namespace is the namespace associated with a module, script, or interactive session and visible as the defining environment for its functions.
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  100 C++ Mistakes and How to Avoid ThemThe global namespace is the C++ namespace containing declarations that are not enclosed in another namespace.
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  Clojure: The Essential ReferenceA namespace is a Clojure scope that organizes and qualifies names such as functions and variables.
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  Authorization in ActionA namespace is a prefix or naming context that distinguishes entities, actions, policies, or types belonging to different domains or systems.
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  Python How-ToA global namespace is the module-level namespace that maps identifiers to their corresponding objects.
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  F# in Action: A Revised Edition of Get Programming with F#A namespace is a programming-language construct that groups and qualifies names to organize code and avoid naming collisions.
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  Kubernetes for DevelopersA Kubernetes namespace is a logical scope that groups and isolates named resources within a cluster.
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  Refactoring to RustA namespace is a named scope that contains identifiers and distinguishes them from identifiers in other scopes.
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  Python Workout, Second EditionA namespace is a mapping that associates names with objects and separates those names from other naming contexts.
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  Modern CAn identifier namespace is a C naming domain in which identifiers are associated with distinct kinds of entities and may have separate collision rules.
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  Platform Engineering on KubernetesA Kubernetes namespace is a logical scope that isolates and organizes namespaced resources within a cluster.
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  .NET in Action, Second EditionA namespace is a programming-language construct that groups related types and identifiers under a qualified name.
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  Effective Platform EngineeringA namespace is a logical partition that groups and isolates named resources within a cluster.
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  Learn PowerShell Scripting in a Month of Lunches, Second Edition: Write and organize scripts and toolsA namespace is a naming scope that groups related types and helps keep their identifiers distinct from types in other scopes.
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  Learn Go with Pocket-Sized ProjectsA JavaScript namespace is a named scope or object used to organize and expose JavaScript-accessible functions and values.
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  The Well-Grounded Rubyist, Fourth EditionA Ruby namespace is a naming context that groups definitions and keeps names from different contexts distinct.

Compare how 20 books explain namespace →

Related concepts

• namespace collisionaddresses · A namespace collision occurs when distinct software entities use the same identifier within a shared naming scope, causing ambiguity or conflict.
• local namespaceincludes · A local namespace is the mapping of names to objects within a particular local scope, such as an executing function or code block.
• moduleproduced by · A module is a distinct, bounded software unit that groups related code or functionality and provides an organizational or interaction boundary within a larger system.
• scopeused by · Scope is the region of a program in which names are visible and can be resolved according to the language’s lookup rules.
• dir()used by · dir() is a Python built-in function that returns names available in a namespace or attributes associated with an object, module, or type.

This explainer was generated by Manning's knowledge graph from the text of MongoDB 8.0 in Action, Third Edition. The section links point to the parts of the book it draws on.