Logical Query Operators¶

注解

For details on specific operator, including syntax and examples, click on the specific operator to go to its reference page.

Name	Description
`$or`	Joins query clauses with a logical `OR` returns all documents that match the conditions of either clause.
`$and`	Joins query clauses with a logical `AND` returns all documents that match the conditions of both clauses.
`$not`	Inverts the effect of a query expression and returns documents that do not match the query expression.
`$nor`	Joins query clauses with a logical `NOR` returns all documents that fail to match both clauses.

← $nin $or →