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Deletes a single item in a table by primary key. You can perform a conditional delete operation that deletes the item if it exists, or if it has an expected attribute value.
In addition to deleting an item, you can also return the item's attribute values in
the same operation, using the ReturnValues
parameter.
Unless you specify conditions, the DeleteItem
is an idempotent operation; running
it multiple times on the same item or attribute does not result in an error
response.
Conditional deletes are useful for deleting items only if specific conditions are met. If those conditions are met, DynamoDB performs the delete. Otherwise, the item is not deleted.
For .NET Core this operation is only available in asynchronous form. Please refer to DeleteItemAsync.
Namespace: Amazon.DynamoDBv2
Assembly: AWSSDK.DynamoDBv2.dll
Version: 3.x.y.z
public virtual DeleteItemResponse DeleteItem( DeleteItemRequest request )
Container for the necessary parameters to execute the DeleteItem service method.
Exception | Condition |
---|---|
ConditionalCheckFailedException | A condition specified in the operation could not be evaluated. |
InternalServerErrorException | An error occurred on the server side. |
ItemCollectionSizeLimitExceededException | An item collection is too large. This exception is only returned for tables that have one or more local secondary indexes. |
ProvisionedThroughputExceededException | Your request rate is too high. The Amazon Web Services SDKs for DynamoDB automatically retry requests that receive this exception. Your request is eventually successful, unless your retry queue is too large to finish. Reduce the frequency of requests and use exponential backoff. For more information, go to Error Retries and Exponential Backoff in the Amazon DynamoDB Developer Guide. |
RequestLimitExceededException | Throughput exceeds the current throughput quota for your account. Please contact Amazon Web Services Support to request a quota increase. |
ResourceNotFoundException | The operation tried to access a nonexistent table or index. The resource might not be specified correctly, or its status might not be ACTIVE. |
TransactionConflictException | Operation was rejected because there is an ongoing transaction for the item. |
This example shows how to delete an item in a table.
// Create a client AmazonDynamoDBClient client = new AmazonDynamoDBClient(); // Define item key // Hash-key of the target item is string value "Mark Twain" // Range-key of the target item is string value "The Adventures of Tom Sawyer" Dictionary<string, AttributeValue> key = new Dictionary<string, AttributeValue> { { "Author", new AttributeValue { S = "Mark Twain" } }, { "Title", new AttributeValue { S = "The Adventures of Tom Sawyer" } } }; // Create DeleteItem request DeleteItemRequest request = new DeleteItemRequest { TableName = "SampleTable", Key = key }; // Issue request client.DeleteItem(request);
.NET Framework:
Supported in: 4.5 and newer, 3.5