Mongoose schemas support a timestamps option. If you set timestamps: true, Mongoose will add two properties of type Date to your schema: createdAt: a date representing when this document was createdupdatedAt: a date representing when…
The error is because of the new version of the mongoose i.e version 6.0.6. useNewUrlParser, useUnifiedTopology, useFindAndModify, and useCreateIndex are no longer supported options. Mongoose 6 always behaves as if useNewUrlParser, useUnifiedTopology, and useCreateIndex are true, and useFindAndModify is false. Please remove…
While working on any project where we may have a requirement to check the size of an array or to get an element whose size is greater or less than…
Some time while performing any operation on user like updating user, dropping user or granting or revoking access, we face error like user not found for particular db. Few thing…
Many time we want run query with in query to get desirable result. MongoDB provide a aggregation operator to achieve result like this. Lets assume we have a collection with…
If we want SQL like "Like" operator in Mongo DB for string matching. But in mongo DB there is no such "like" operator instead it has regular expression to achieve…
We will see the example of $mul, $min, and $max in the update query of MongoDB. How we can use these update query field operators in our update query to…
We need import a large or any size of data set to practice or for the project requirement. We can insert a large data set using insertMany() but it is…
