AWS Database Blog

HAQM Q Developer, a generative artificial intelligence (AI) assistant, can help accelerate the development of applications on AWS. In this post, we create a DynamoDB table using IaC then perform create, read, update, and delete (CRUD) operations on the table using Python and Boto3 (with additional observations for JavaScript and Java at the end of the post). We demonstrate how HAQM Q can improve your speed of development for these tasks.

Customers often ask for guidance on how to obtain the count of items in a table or within specific partitions (item collections). In this post, we explore several methods to achieve this, each tailored to different use cases, with a focus on balancing accuracy, performance, and cost.

In this post, we provide an overview of Delivery Hero’s goals and how we used HAQM DynamoDB to build a scalable and cost-efficient solution, leveraging gamification to improve restaurant operations.

In this post, we show you how to migrate an Oracle database to an HAQM RDS for Oracle DB instance. The solution uses Oracle Data Pump for initial data load and Oracle GoldenGate Microservices Architecture installed on an HAQM Elastic Compute Cloud (HAQM EC2) instance as the Oracle GoldenGate hub for change data capture.

In this post, we explain how to use RDS Db2 Snapshot and AWS Database Migration Service (AWS DMS) to create cross Region replicas for your RDS for Db2 DB instance. If you want to use this replica for read scaling, there needs to be logic built at the application layer to direct only read traffic to the replica.

Oracle Multitenant Architecture uses a container-based architecture specifically designed for the cloud. It enables the Oracle database to function as multitenant container database (CDB) where application databases are created as pluggable databases (PDB) inside the container database (CDB). A PDB is a collection of schemas, schema objects and non-schema objects, and self-contained for an application […]

In this post, we discuss how to migrate a self-managed document database or HAQM DocumentDB database to HAQM DocumentDB using AWS DMS homogeneous migration.

In this post we walk through the steps to setup CQL Replicator and migrate a table from self-managed Cassandra cluster to HAQM Keyspaces. We demonstrate how to set up, run, and shut down the CQLReplicator job using command line tooling and observe changes flowing through the pipeline in HAQM CloudWatch.

In this post, we discuss how Phreesia used AWS DMS to replicate their on-premises database to AWS in an effective and cost-optimized manner. Because of the database’s large size and complex data structure, properly tuning the AWS DMS configuration was critical to minimize the migration duration and cost. We outline the fine-tuning techniques that were applied to optimize the AWS DMS task settings, instance size, IOPS provisioning, and table mappings. Applying these performance optimizations allowed Phreesia to develop a migration strategy to move this 30 TB database to HAQM S3 in just 2 days without disruption to production workloads.

In this post, we discuss more PostgreSQL key concepts, including simple query protocol, explain plans, how to read explain plans, and tools to visualize these plans in HAQM RDS for PostgreSQL and HAQM Aurora PostgreSQL-Compatible Edition.