Lock Down DynamoDB Access with IAM Policies
DynamoDB access control is often thought of as just granting permissions to tables, but its true power lies in the ability to precisely control what ope.
Dynamodb Articles
51 articles
Model Graph Relationships in DynamoDB with Adjacency Lists
DynamoDB's adjacency list model is surprisingly efficient for representing graph-like relationships, often outperforming traditional relational database.
Enable Point-in-Time Recovery for DynamoDB Tables
DynamoDB's Point-in-Time Recovery PITR is usually framed as a safety net, but its real power lies in its ability to be a proactive tool for development .
Work Within DynamoDB Batch Write and Get Limits
DynamoDB's BatchWriteItem and BatchGetItem operations let you perform multiple item operations in a single request, but they're not unlimited.
How DynamoDB Burst Capacity Works and When It Runs Out
DynamoDB's burst capacity is a hidden superpower that lets you handle sudden traffic spikes without a manual intervention, but it's also the silent kill.
Calculate DynamoDB Read and Write Capacity Units Correctly
DynamoDB's capacity units don't scale linearly with data size, and you're likely overpaying or hitting throttles because you haven't accounted for the a.
Design DynamoDB Composite Keys for Flexible Access Patterns
DynamoDB composite keys are the secret sauce that lets you query your data in ways that seem impossible for a NoSQL database, like finding all orders fo.
Use Conditional Writes to Enforce Atomicity in DynamoDB
DynamoDB's conditional writes are the key to making multiple operations atomic, meaning they either all succeed or all fail together, preventing data in.
Configure Keep-Alive Connections for DynamoDB SDK Performance
DynamoDB doesn't actually close your connection after each request; it keeps it open by default, and what you're really configuring is how aggressively .
Cut DynamoDB Costs with On-Demand, Reserved, and TTL
DynamoDB's on-demand capacity mode, while seemingly convenient, is often the silent killer of your budget, charging you per read/write operation regardl.
Grant Cross-Account Access to DynamoDB with IAM Roles
Granting cross-account access to DynamoDB means one AWS account the "requester" needs to read from or write to DynamoDB tables owned by another AWS acco.
DynamoDB Document API vs Low-Level API: Choose the Right One
The DynamoDB Document API is actually a thin, convenient wrapper around the Low-Level API, but understanding when to use each unlocks significant perfor.
Encrypt DynamoDB Tables at Rest with AWS KMS
DynamoDB tables are encrypted by default, but this encryption is managed by AWS, not by you. Here's how you can take control and encrypt your DynamoDB t.
Use DynamoDB Enhanced Client in Java for Type-Safe Queries
The DynamoDB Enhanced Client in Java lets you write type-safe queries against DynamoDB without ever touching the low-level AttributeValue objects, and i.
Export DynamoDB Tables to S3 for Analytics and Archiving
DynamoDB tables are surprisingly bad at being databases, but amazing at being data stores. Let's say you've got a DynamoDB table, my-app-data, with a fe.
Use Expression Attribute Names to Avoid DynamoDB Reserved Words
DynamoDB will happily let you name an attribute name, but it will also throw a fit if you try to use it in certain contexts.
DynamoDB Filter Expressions vs Key Conditions: Use the Right One
DynamoDB Filter Expressions and Key Conditions look similar, but they operate at fundamentally different stages of a query, leading to drastically diffe.
Design DynamoDB Global Secondary Indexes for Multiple Access Patterns
DynamoDB Global Secondary Indexes GSIs are not just for querying by a different attribute; they are distinct, independently scalable tables that allow y.
Replicate DynamoDB Across Regions with Global Tables
DynamoDB Global Tables are designed to replicate data across multiple AWS regions automatically, but the initial setup and understanding can be a bit nu.
Model Hierarchical Data in DynamoDB Without Foreign Keys
DynamoDB doesn't actually have foreign keys, which forces you to think about data modeling in a completely new way for hierarchical data.
Fix DynamoDB Hot Partition Problems with Write Sharding
DynamoDB's write sharding mechanism failed to distribute write traffic evenly, causing a specific partition to become a bottleneck and reject requests.
Debug DynamoDB Indexes Eating Too Much Read/Write Capacity
DynamoDB Global Secondary Indexes GSIs can silently consume a surprising amount of provisioned read and write capacity, often leading to throttling and .
Reverse Query Direction in DynamoDB with Inverted Index Pattern
DynamoDB can't directly query for a "missing" attribute, but it can efficiently find items that have a specific attribute.
Design Around DynamoDB's 400KB Item Size Limit
DynamoDB items can't be larger than 400KB, and the real trick is that this limit isn't just about storage; it's about throughput and performance.
Stream DynamoDB Changes to Kinesis for Real-Time Processing
DynamoDB Streams can capture every single write operation as an immutable record, but it's not actually a stream of data in the way you might think.
Run DynamoDB Locally for Development and Testing
Run DynamoDB Locally for Development and Testing — practical guide covering dynamodb setup, configuration, and troubleshooting with real-world examples.
Migrate a Relational Database to DynamoDB Step by Step
DynamoDB doesn't actually store data in relational tables; it uses a key-value and document model, meaning your "migration" is more of a re-architecting.
Monitor DynamoDB with CloudWatch Metrics and Alarms
DynamoDB metrics are actually a pull system, not a push system, meaning CloudWatch polls DynamoDB for data at intervals, rather than DynamoDB sending da.
Design DynamoDB Tables Visually with NoSQL Workbench
NoSQL Workbench lets you design DynamoDB tables visually, but the real magic is how it translates those visual models into actual, runnable DynamoDB sch.
Model One-to-Many Relationships in DynamoDB Efficiently
DynamoDB, a NoSQL database, doesn't natively support traditional relational database concepts like foreign keys or joins.
Prevent Concurrent Update Conflicts with DynamoDB Optimistic Locking
DynamoDB optimistic locking doesn't prevent concurrent updates; it detects them after the fact and lets you decide what to do.
Pack Multiple Entity Types into One DynamoDB Index
DynamoDB's Global Secondary Indexes GSIs are typically designed to query a single entity type, but you can absolutely pack multiple entity types into on.
Paginate DynamoDB Results with LastEvaluatedKey
DynamoDB doesn't just give you all your data at once; it hands it to you in chunks, and LastEvaluatedKey is how you ask for the next chunk.
Choose DynamoDB Partition Keys That Distribute Load Evenly
Choose DynamoDB Partition Keys That Distribute Load Evenly — practical guide covering dynamodb setup, configuration, and troubleshooting with real-world...
DynamoDB Provisioned vs On-Demand Capacity: Pick the Right Mode
DynamoDB's capacity modes aren't just about how you pay; they fundamentally change how your application interacts with the database at a system level.
DynamoDB Eventual vs Strong Consistency: When Each One Matters
The most surprising thing about DynamoDB consistency is that you're probably paying for strong consistency when you don't need it.
Autoscale DynamoDB Read and Write Capacity Automatically
DynamoDB's auto-scaling feature is actually a misnomer; it doesn't directly adjust your provisioned capacity based on traffic.
DynamoDB Scan vs Query: Why Scans Kill Performance
DynamoDB's Scan operation is a performance killer not because it's inherently slow, but because it's fundamentally a brute-force approach that bypasses .
Configure DynamoDB SDK Retry and Exponential Backoff
DynamoDB client libraries don't just blindly retry requests; they use a sophisticated exponential backoff strategy that's crucial for handling transient.
Master DynamoDB Single-Table Design to Eliminate Joins
DynamoDB single-table design isn't about "joining" data like SQL; it's about querying for related items in a single, optimized request.
Use DynamoDB Sort Keys to Enable Range Queries and Sorting
DynamoDB sort keys are the secret sauce that lets you query data in ranges and order it efficiently, but their true power lies in how they organize your.
Save Capacity with DynamoDB Sparse Index Patterns
DynamoDB global secondary indexes GSIs can cost you a fortune if you're not careful, but there's a deeply counterintuitive way they can actually save yo.
Trigger Lambda Functions from DynamoDB Streams
DynamoDB Streams don't just log changes; they act as a real-time event bus that Lambda functions can subscribe to, enabling stateful processing of datab.
Reduce DynamoDB Storage Costs with Infrequent Access Table Class
DynamoDB's Infrequent Access IA table class isn't just a cheaper storage tier; it's a fundamental shift in how you think about data access patterns, all.
Test DynamoDB Code with Moto and LocalStack
Test DynamoDB Code with Moto and LocalStack — practical guide covering dynamodb setup, configuration, and troubleshooting with real-world examples.
Use DynamoDB Transactions for ACID Guarantees Across Items
DynamoDB transactions aren't just about making sure data is consistent; they're about preventing operations from leaving the system in a half-baked, inc.
Automatically Expire DynamoDB Items with TTL
DynamoDB's Time To Live TTL feature is often misunderstood as just a simple expiration mechanism, but its real power lies in how it interacts with your .
Update DynamoDB Items with SET, REMOVE, ADD, and DELETE Expressions
DynamoDB's UpdateItem operation allows for granular modification of individual attributes within an item, but its true power lies in the use of expressi.
DynamoDB vs MongoDB: Choose the Right NoSQL Database
DynamoDB and MongoDB, both NoSQL titans, are often pitted against each other, but their fundamental design philosophies and ideal use cases diverge dram.
Eliminate DynamoDB Hot Keys with Write Sharding
Eliminate DynamoDB Hot Keys with Write Sharding — practical guide covering dynamodb setup, configuration, and troubleshooting with real-world examples.
Fix IndexNotFoundException in DynamoDB Queries
The IndexNotFoundException in DynamoDB means the query operation couldn't find the specified index, which is usually an IndexName or a ProjectionExpress.