DynamoDB is a powerful NoSQL database that is widely used for its scalability, flexibility, and ease of use. In some cases, you may need to perform a complete scan of your DynamoDB table in order to retrieve all of the data it contains. In this scenario, it can be helpful to order the results by … Read more
Iterating over dictionaries using ‘for’ loops is a common task in Python programming. To do this, you can use the built-in ‘for’ loop in Python, which allows you to iterate over the keys of a dictionary. Python 3.x Example 1: Iterating over a dictionary using keys my_dict = {‘name’: ‘Sam’, ‘age’: 30, ‘gender’: ‘male’} for … Read more
There are two ways to add custom jars to PySpark in a Jupyter notebook: 1. Using the PYSPARK_SUBMIT_ARGS environment variable The PYSPARK_SUBMIT_ARGS environment variable can be used to pass arguments to the spark-submit command when submitting a PySpark job. To add custom jars to PySpark using this environment variable, you can do the following: For … Read more
To perform a complete scan of a DynamoDB table using Boto3, you can use the scan method of the DynamoDB client object. Here’s an example code snippet that demonstrates how to perform a complete scan: In this code snippet, we first initialize a DynamoDB client object using Boto3. We then specify the name of the table to scan and initialize a … Read more