Posts
All the articles I've posted.
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Running PySpark on Google Colab: Do You Still Need findspark?
Introduction For a long time, using Apache Spark in Google Colab required manual setup, including installing Spark and configuring Python to recognize it. This was often done using the findspark
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Testing Apache Airflow DAGs: A Modular Approach
Introduction Apache Airflow is a powerful workflow automation tool, but testing DAGs can be challenging due to their dependency on the Airflow scheduler and execution environment. In this post, we
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Visualizing EXPLAIN ANALYZE in PostgreSQL
When working with PostgreSQL, understanding how queries execute can greatly improve performance tuning and optimization. PostgreSQL provides the EXPLAIN ANALYZE command to help developers analyze
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Enabling Internet Access for Resources in a Public Subnet
When deploying resources in a public subnet within an AWS Virtual Private Cloud (VPC), you need to configure several components to allow them to communicate with the internet. Below are the essential
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Network Address Translation (NAT): Overcoming IPv4 Shortages
Introduction Network Address Translation (NAT) is a technology designed to mitigate the shortage of IPv4 addresses by allowing multiple devices on a private network to share a limited number of public
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Understanding Subnets, Gateways, and Route Tables in AWS
When designing applications in AWS, it's crucial to understand how networking components interact within a Virtual Private Cloud (VPC). This post will cover subnets, gateways, and route tables,
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Generating a Calendar Table in Power Query (M Language)
When working with Power BI or other Power Query-supported tools, having a well-structured calendar table is essential for time-based analysis. In this blog post, we will walk through an M Language
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How to Display an Error in Excel When More Than 5 "FALSE" Values Appear in a Row
Introduction When working with data in Excel, there may be instances where you need to monitor certain conditions and flag errors based on specific criteria. In this guide, we'll walk through a simple