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Document Queries

Note

SDK method: find; findOne reads a single document.

test.user_info.find({age: {$gte: ?}}, {name: 1, age: 1}).sort({_id: 1}).skip(0).limit(10)
test.user_info.findOne({uid: ?})

The first argument is the filter and the second is the projection. Supported chained methods are sort, skip, limit and hint, not arbitrary mongosh method chains.

Combined Conditions​

test.user_info.find({$or: [{name: ?}, {uid: ?}]})
test.user_info.find({name: {$regex: ?}})

$regex accepts a regular expression, not a SQL LIKE pattern. Escape regex metacharacters when matching plain text.

In the default pre-read mode, a projection exposes only the projected fields. Without a projection, _JSON is also available. See Reading Results for entity and scalar access.