AWS Database Blog

Category: Advanced (300)

Building async Python applications with Tortoise ORM and Amazon Aurora DSQL

Building async Python applications with Tortoise ORM and Amazon Aurora DSQL

Build a high-concurrency async Python rideshare application with Tortoise ORM and Amazon Aurora DSQL. This post walks through the key adaptations: UUID primary keys, IAM-authenticated asyncpg connections with a connection-pool patch, individual DDL execution, and optimistic concurrency control (OCC) retry logic.

Troubleshoot AWS Advanced JDBC Wrapper configuration for Aurora Global Database write forwarding

Troubleshoot AWS Advanced JDBC Wrapper configuration for Aurora Global Database write forwarding

Configuring the AWS Advanced JDBC Wrapper for Amazon Aurora Global Database with write forwarding requires Region-specific settings, and misconfiguration causes latency spikes and connection failures. This post walks through the correct dialect, plugins, host patterns, and write forwarding settings for the primary and secondary Regions.

Introducing strands-dynamodb-storage: Durable agent storage for the Strands Agents SDK

Introducing strands-dynamodb-storage: Durable agent storage for the Strands Agents SDK

Announcing strands-dynamodb-storage, an open source Amazon DynamoDB storage backend for the Strands Agents SDK. Back a Strands agent’s session state, long-term memories, and transcripts with one DynamoDB table in your own account, and give the agent semantic recall with a vector index on that same table.

SQL Server to Aurora PostgreSQL conversion with AI agents for AWS DMS

SQL Server to Aurora PostgreSQL conversion with AI agents for AWS DMS

Learn how to use AI agents with AWS DMS Schema Conversion to orchestrate SQL Server to Amazon Aurora PostgreSQL schema conversion through natural language. See how the conversion engine processes T-SQL, how the agent drives the workflow, and how to interpret and resolve CRITICAL action items using decision frameworks for common incompatibilities.

How Channel Corporation modernized their architecture with Amazon DynamoDB, Part 3: User and Badge

Channel Corporation shares how they split their all-purpose Amazon DynamoDB User table into role-specific tables, moving Badge data into a dedicated UserBadge table to stop transaction-conflict throttling and GSI back pressure, and how they ran a zero-downtime online migration using DynamoDB Export and Import with Amazon S3 and AWS Glue.

Cross-database access using module signing on Amazon RDS for SQL Server

Cross-database access using module signing on Amazon RDS for SQL Server

If you need cross-database access on Amazon RDS for SQL Server but cannot enable TRUSTWORTHY, module signing with certificates is the secure, RDS-compatible alternative. This post shows how to grant cross-database permissions to specific stored procedures without TRUSTWORTHY and with a stronger, least-privilege security posture.

Migrate multilingual full-text search from SQL Server to PostgreSQL

Migrate multilingual full-text search from SQL Server to PostgreSQL

Migrating full-text search from SQL Server to PostgreSQL can silently change results because the engines handle text, linguistics, and accents differently. This post shows how to reproduce SQL Server full-text search on Amazon Aurora PostgreSQL and Amazon RDS for PostgreSQL, covering collation, tokenization, accent-insensitive search, and synonyms.

Understand memory management in Amazon RDS for PostgreSQL to avoid out of memory

Understand memory management in Amazon RDS for PostgreSQL to avoid out of memory

PostgreSQL out-of-memory (OOM) events and excessive disk spilling are among the most common production incidents on Amazon RDS for PostgreSQL and Amazon Aurora PostgreSQL. Learn how PostgreSQL allocates and consumes memory, how to identify memory-intensive queries, and how to diagnose, prevent, and recover from OOM events on both engines.