AWS Big Data Blog

Redacting sensitive information with user-defined functions in Amazon Athena

Amazon Athena now supports user-defined functions (in Preview), a feature that enables you to write custom scalar functions and invoke them in SQL queries. Although Athena provides built-in functions, UDFs enable you to perform custom processing such as compressing and decompressing data, redacting sensitive data, or applying customized decryption. You can write your UDFs in […]

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Federated API access to Amazon Redshift using an Amazon Redshift connector for Python

Amazon Redshift is the leading cloud data warehouse that delivers performance 10 times faster at one-tenth of the cost of traditional data warehouses by using massively parallel query execution, columnar storage on high-performance disks, and results caching. You can confidently run mission-critical workloads, even in highly regulated industries, because Amazon Redshift comes with out-of-the-box security […]

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Handling data erasure requests in your data lake with Amazon S3 Find and Forget

Data lakes are a popular choice for organizations to store data around their business activities. Best practice design of data lakes impose that data is immutable once stored, but new regulations such as the European General Data Protection Regulation (GDPR), California Consumer Privacy Act (CCPA), and others have created new obligations that operators now need […]

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Extracting and joining data from multiple data sources with Athena Federated Query

With modern day architectures, it’s common to have data sitting in various data sources. We need proper tools and technologies across those sources to create meaningful insights from stored data. Amazon Athena is primarily used as an interactive query service that makes it easy to analyze unstructured, semi-structured, and structured data stored in Amazon Simple […]

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How the ZS COVID-19 Intelligence Engine helps Pharma & Med device manufacturers understand local healthcare needs & gaps at scale

This post is co-written by Parijat Sharma: Principal, Strategy & Transformation, Wenhao Xia: Manager, Data Science, Vineeth Sandadi: Manager, Business Consulting from ZS Associates, Inc, Arianna Tousi: Strategy, Insights and Planning Consultant from ZS, Gopi Vikranth: Associate Principal from ZS. In their own words, “We’re passionately committed to helping our clients and their customers thrive, […]

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AWS serverless data analytics pipeline reference architecture

This post was last reviewed and updated May, 2022 to include additional resources for predictive analysis section. Onboarding new data or building new analytics pipelines in traditional analytics architectures typically requires extensive coordination across business, data engineering, and data science and analytics teams to first negotiate requirements, schema, infrastructure capacity needs, and workload management. For […]

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Big data processing in a data warehouse environment using AWS Glue 2.0 and PySpark

The AWS Marketing Data Science and Engineering team enables AWS Marketing to measure the effectiveness and impact of various marketing initiatives and campaigns. This is done through a data platform and infrastructure strategy that consists of maintaining data warehouse, data lake, and data transformation (ETL) pipelines, and designing software tools and services to run related […]

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Accessing external components using Amazon Redshift Lambda UDFs

Amazon Redshift is a fast, scalable, secure, and fully managed cloud data warehouse. It makes it simple and cost-effective to analyze all your data using standard SQL, your existing ETL (extract, transform, and load), business intelligence (BI), and reporting tools. Tens of thousands of customers use Amazon Redshift to process exabytes of data per day […]

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Automating DBA tasks on Amazon Redshift securely using AWS IAM, AWS Lambda, Amazon EventBridge, and stored procedures

As a data warehouse administrator or data engineer, you may need to perform maintenance tasks and activities or perform some level of custom monitoring on a regular basis. You can combine these activities inside a stored procedure or invoke views to get details. Some of these activities include things like loading nightly staging tables, invoking […]

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Optimizing Amazon EMR for resilience and cost with capacity-optimized Spot Instances

Amazon EMR now supports the capacity-optimized allocation strategy for Amazon Elastic Compute Cloud (Amazon EC2) Spot Instances for launching Spot Instances from the most available Spot Instance capacity pools by analyzing capacity metrics in real time. You can now specify up to 15 instance types in your EMR task instance fleet configuration. This provides Amazon […]

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