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Field Update Operators
Note
For details on a specific operator, including syntax and examples, click on the link to the operator's reference page.
Name | Description |
|---|---|
Sets the value of a field to current date, either as a Date or a Timestamp. | |
Increments the value of the field by the specified amount. | |
Only updates the field if the specified value is less than the existing field value. | |
Only updates the field if the specified value is greater than the existing field value. | |
Multiplies the value of the field by the specified amount. | |
Renames a field. | |
Sets the value of a field in a document. | |
Sets the value of a field if an update results in an insert of a document. Has no effect on update operations that modify existing documents. | |
Removes the specified field from a document. |