In an Amazon DynamoDB table, the primary key that uniquely identifies each item in the table can be composed of a partition key and a sort key. Well-designed sort keys have two key benefits: They gather related information together in one place where it can be queried efficiently. Careful ...
Optionally, you can apply a condition to the sort key values so that you only retrieve a subset of the data that has the same partition key. You can use this operation on a table, provided that the table has both a partition key and a sort key. You can also use this operation on ...
Partition key is required. [API: Query] restore Restore a DynamoDB table from backup data scan Retrieve items in a table without any condition. [API: Scan] upd Update an existing item. [API: UpdateItem] use Switch target table context. After you use the command you don't need to ...
In this tutorial, you will learn how to create a simple table, add data, scan and query the data, delete data, and delete the table by using the DynamoDB console.
We can add a global secondary index (GSIpkandGSIsk) to capture another access pattern: get order details and all product items placed in an order. We use the following table. We have used generic attribute names, PK and SK, for our partition key and sort key ...
Local secondary index— an index that has the same partition key as the base table, but a different sort key. A local secondary index is "local" in the sense that every partition of a local secondary index is scoped to a base table partition that has the same partition key value.Supporte...
Edits an existing item's attributes or adds a new item to the table if it does not already exist. awaitddbContext.UpdateItem<UserEntity>().WithPrimaryKey("partitionKey","sortKey").On(x=>x.FirstName).Assign("John").On(x=>x.LastName).Assign("Doe").ExecuteAsync(); ...
@DynamoDBHashKey– Maps a class property to the partition key of the table. @DynamoDBAutoGeneratedKey– Marks a partition key or sort key property as being autogenerated.DynamoDBMappergenerates a random UUID when saving these attributes. Only String properties can be marked as autogenerated keys...
1. Create table with Partition key and sort key 2. Add Local secondary Indexes (LSI) Recall that for LSI, the partition key is the same as Primary key's partiion key, when this can only be created during creating new table. Remeber to check the checkbox for LSI ...
The table design - this is the primary index using the table's partitionKey and the sortKey The index schema (GSI1) - this uses the GSI1pk and GSIsk attributes to create the first additional index The index schema (GSI2) - this uses the GSI2pk and GSIsk attributes to create the se...