Defining, Creating and Dropping a MongoDB collection
MongoDB is an open-source, cross-platform document-based database.
Document: It is the basic unit of MongoDB and a single record inside a collection is known as a document.
It is a JSON object which has the data in the form of key-value pairs.
Collection: It is the grouping of documents. A collection belongs to the single database inside MongoDB.
Collection contains the data in the form of document just like the table of RDBMS which contains the data in the form of rows and columns.
query: An object for finding the document
update: An object for updating the document with set command
- To edit a mongodb collection update function is used
- Apply the query for finding the document which you want to update.
In our collection we want to update collection having name as shilpi so query is:
- Using the set command to modify the Field Name
- Choose which Field Name you want to modify and then enter the new value accordingly into the query.
In our collection we want to edit age value to 23 for name shilpi:
Dropping the collection:
It will return true if collection is deleted successfully.