AWS Database Blog

Category: Advanced (300)

Transition a pivot query that includes dynamic columns from SQL Server to PostgreSQL

When assisting customers with migrating their workloads from SQL Server to PostgreSQL, we often encounter a scenario where the PIVOT function is used extensively for generating dynamic reports. In this post, we show you how to use the crosstab function, provided by PostgreSQL’s tablefunc extension, to implement functionality similar to SQL Server’s PIVOT function, offering greater flexibility.

Integrate natural language processing and generative AI with relational databases

In this post, we present an approach to using natural language processing (NLP) to query an Amazon Aurora PostgreSQL-Compatible Edition database. The solution presented in this post assumes that an organization has an Aurora PostgreSQL database. We create a web application framework using Flask for the user to interact with the database. JavaScript and Python code act as the interface between the web framework, Amazon Bedrock, and the database.

Improve cost visibility of an Amazon RDS multi-tenant instance with Performance Insights and Amazon Athena

In this post we introduce a solution that addresses a common challenge faced by many customers: managing costs in multi-tenant applications, particularly for shared databases in Amazon Relational Database Service (Amazon RDS) and Amazon Aurora. This solution uses Amazon RDS Performance Insights and AWS Cost and Usage Reports (CUR) to addresses this challenge. This allows for efficient grouping of tenants within the same RDS or Aurora instances, while helping you implement accurate chargeback models, optimize resource-intensive workloads, and make data-driven decisions for capacity planning.

Grouping database tables in AWS DMS tasks for Oracle source engine

AWS Database Migration Service is a cloud service designed to simplify the process of migrating and replicating databases, data warehouses and other data stores. It offers a comprehensive solution for both homogeneous and heterogeneous database migrations, facilitating transitions between different database platforms. The migration process typically involves two major phases: Migration of existing data (full […]

Multiple database support on Amazon RDS for Db2 DB instance

Many organizations run IBM Db2 databases across multiple physical servers or virtual machines. This approach leads to resource investments in infrastructure, management, and licensing. Additionally, advancements in hardware technology, increased CPU capacities, and database engine enhancements result in underutilized servers if not rightsized at the outset. To optimize resource utilization, organizations can explore the following […]

Automate Amazon RDS credential rotation with AWS Secrets Manager for primary instances with read replicas

When using Secrets Manager to manage your master user passwords, you cannot create new read replicas for your database instance. This applies to all DB engines except Amazon RDS for SQL Server, potentially impacting your organization’s ability to efficiently scale its read operations while maintaining secure credential practices. In this post, we present a solution that automates the process of rotating passwords for a primary instance with read replicas while maintaining secure credential management practices. This approach allows you to take advantage of the benefits of both read scaling and automated credential rotation.

How Mindbody improved query latency and optimized costs using Amazon Aurora PostgreSQL Optimized Reads

In this post, we highlight the scaling and performance challenges Mindbody was facing due to an increase in their data growth. We also present the root cause analysis and recommendations for adopting to Aurora Optimized Reads, outlining the steps taken to address these issues. Finally, we discuss the benefits Mindbody realized from implementing these changes, including enhanced query performance, significant cost savings, and improved price predictability.