listCollections (List Collections)

Last updated: 2026-10-09

listCollections (List Collections)

listCollections lists the database's collections with their options (validator, collation, TTL, etc.). In mongosh use db.getCollectionNames() for names only or db.getCollectionInfos() for details. The filter argument narrows by name or type (e.g. views only). Results come back as a cursor to be iterated.

📝 Syntax

db.runCommand({ listCollections: 1, filter: { name: /^orders/ } })
db.getCollectionInfos({ name: /^orders/ })

⚙️ Parameters

Returns：Returns a cursor whose firstBatch holds name, type, and options per collection

▶ Example

Run the commands below in your local mongosh (requires a running mongod):

// listCollections: print all collection names
use shop
db.getCollectionInfos().forEach((c) => print(c.name))

Output：

orders
products
users

📌 Notes

• Results are a cursor; iterate firstBatch for everything
• filter supports name, type, and options
• system.* collections are included by default; filter by name to exclude them

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