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Mongodb compass filter example
Mongodb compass filter example






mongodb compass filter example

He was upset he didn’t get the win, but fans will respect his boxing efforts more after this performance. He looked completely lost in the ring fighting Paul, but he was much more polished against Holder. The co-main event between AnEsonGib and Tayler Holder ended in a huge controversy as the judges decided a majority draw finish. AnEsonGib appeared to be the clear winner of the fight, and fans were so upset that “ROBBED” started to trend on Twitter after the ruling.Įven though AnEsonGib didn’t get the actual victory, he did prove to others that he has improved a lot since his loss to Jake Paul. But since the referee intervened, it’s not clear if Hall is going to be paying up. Either way, McBroom came away the winner of the main event.

mongodb compass filter example

The two social media stars put up a bet against one another that they’d have to pay the other a $1 million bonus in the event of a knockout. The sort function can be used to return the documents in descending order after which the limit clause can be used to limit the number of documents being returned.The Battle of the Platforms is finished, and it ended up being a pretty entertaining event.Īustin McBroom absolutely dominated his fight against Bryce Hall, earning a TKO victory. Use a combination of sort and the limit function to return the last n documents in the collection.The delimiters // can also be used for pattern matching.The ‘i’ along with the $regex operator can be used to specify case insensitivity so that strings can be searched whether they are in lower case or upper case.The ^ and $ symbol can be used for exact text searches with ^ being used to make sure that the string starts with a certain character and $ used to ensure that the string ends with a certain character.This operator can be used to find for certain strings in the collection. Pattern matching can be achieved by the $regex operator.Note: If the search is performed on a string which is greater than say 38,000 characters, it will not display the right results. Hence we have clearly shown that to fetch the last ‘n’ documents in the collection, we can first sort the documents in descending order and then use the limit clause to return the ‘n’ number of documents which are required.

mongodb compass filter example

The output clearly shows that the last two documents in the collection are displayed. If the command is executed successfully, the following Output will be shown: Here we have set the limit clause (2), so it will fetch the last two documents. The -1 basically indicates to sort the documents in reverse order or descending order so that the last document becomes the first document to be displayed.Ģ) Then use the limit clause to just display the number of records you want.

MONGODB COMPASS FILTER EXAMPLE CODE

Here in the below code we have used regex operator to specify the search criteria.ĭb.Employee.find().limit(2).forEach(printjson)ġ) When querying for the documents, use the sort function to sort the records in reverse order based on the _id field value in the collection. Let’ also assume that we have the following documents in our collection. Let’s assume that we have our same Employee collection which has the Field names of “Employeeid” and “EmployeeName”. The following example shows how this can be done. The regex operator in MongoDB is used to search for specific strings in the collection. Using $regex operator for Pattern matching

  • Fetching last ‘n’ documents from a collection.
  • Pattern matching without the regex operator.
  • Using $regex operator for Pattern matching.
  • Hence, one can use regular expressions to assist in retrieving data based on pattern matching search values. Sometimes when retrieving documents in a collection, you may not know exactly what the exact Field value to search for.

    mongodb compass filter example

    Regular expressions are used for pattern matching, which is basically for findings strings within documents.








    Mongodb compass filter example