DynamoDB – Creating Items Creating an item in DynamoDB consists primarily of item and attribute specification, and the option of specifying conditions. Each item exists as a set of attributes, with each attribute named and assigned a value of a certain type. Value types include scalar, document, or set. Items carry a 400KB size limit, […]

DynamoDB – Getting Items Retrieving an item in DynamoDB requires using GetItem, and specifying the table name and item primary key. Be sure to include a complete primary key rather than omitting a portion. For example, omitting the sort key of a composite key. GetItem behaviour conforms to three defaults − It executes as an […]

DynamoDB – Querying Queries locate items or secondary indices through primary keys. Performing a query requires a partition key and specific value, or a sort key and value; with the option to filter with comparisons. The default behavior of a query consists of returning every attribute for items associated with the provided primary key. However, […]