MongoDB $ceil Operator

MongoDB provides different types of arithmetic expression operators that are used in the aggregation pipeline stages and $ceil operator is one of them. This operator is used to find the smallest integer greater than or equal to the specified number.  

{ $ceil: <number> }

Here, the number is a valid expression until it resolves to a number. 

  • If the entered value is null, then this operator will return null.
  • If the entered value is NaN, then this operator will return NaN.
  • If the entered value is a missing field, then this operator will return null.

Examples:

In the following examples, we are working with:

Database: GeeksforGeeks



Collection: employee

Document: three documents that contain the details of the employees in the form of field-value pairs.

Using $ceil Operator:

In this example, we are going to find the smallest integer greater than or equal to the value of the perfoPoint field in the development department.

db.employee.aggregate([{$match: {department: "Development"}}, 
 {$project: {perfoPoint: 1, ceilingPoint: {$ceil: "$perfoPoint"}}}])



Using $ceil Operator in the Embedded Document:

In this example, we are going to find the smallest integer greater than or equal to the value of the perfoPoint.firstMonthPoint field in the HR department.

db.employee.aggregate([{$match: {department: "HR"}},
... {$project: {"perfoPoint.firstMonthPoint": 1,
       ceilingPoint: {$ceil: "$perfoPoint.firstMonthPoint"}}}])



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.