MongoDB's insertMany Function - Utilize db.Collection.insertMany() for multiple data insertions in a single collection
MongoDB's method offers a convenient solution for inserting multiple documents into a collection, all at once. This method is particularly useful when dealing with large sets of data.
The syntax for using is straightforward: . Here, the collection name is replaced with the name of the specific collection, and the brackets contain the documents to be inserted. The and options are optional.
When inserting multiple documents, MongoDB can generate unique ObjectIds for each document if values are not specified. This is particularly helpful during unordered inserts, where documents may not necessarily be inserted in the order they were provided.
Setting to false allows for out-of-sequence insertions, making the operation continue even if one document causes an error. This can be beneficial when inserting multiple documents and wanting the operation to continue despite potential issues. In such cases, MongoDB automatically assigns a unique to each document.
However, it's important to note that duplicate key errors can occur during bulk operations like . To handle such errors, it's advisable to use a try-catch block in your application code and set to continue inserting the remaining documents despite errors.
The method may throw a and supports multi-document transactions. In addition, it can create a collection if it doesn't exist. Upon successful execution, the method returns an object that includes and . The boolean is true if the write concern was enabled, and false if it was disabled.
Here are a few examples to illustrate the use of . In Example 1, a single document with the name 'Akshay' and age 18 is inserted:
In Example 2, an array of documents containing student information is inserted in a single operation:
In Example 3, multiple documents with manually specified values are inserted, ensuring they remain unique:
It's crucial to remember that network issues can occur during bulk operations. To handle transient network errors, implement retry logic in your code. Additionally, ensure all documents meet the schema rules to avoid validation errors. Examine error details to understand and address specific issues that arise during bulk operations.
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