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db.dropAllRoles()
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Definition
- db.- dropAllRoles( writeConcern )
- 
     Deletes all user-defined roles on the database where you run the method. Warning The dropAllRolesmethod removes all user-defined roles from the database.The dropAllRolesmethod takes the following argument:Field Type Description writeConcerndocument Optional. The level of write concern for the removal operation. The writeConcerndocument takes the same fields as thegetLastErrorcommand.Returns: The number of user-defined roles dropped. The db.dropAllRoles()method wraps thedropAllRolesFromDatabasecommand.
Behavior
Replica set
If run on a replica set, db.dropAllRoles() is executed using majority write concern by default.
Example
The following operations drop all user-defined roles from the products database and uses a write concern of majority.
use products
db.dropAllRoles( { w: "majority" } )
The method returns the number of roles dropped:
4