A RetroSearch Logo

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Search Query:

Showing content from https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LegacyConditionalParameters.html below:

Legacy DynamoDB conditional parameters - Amazon DynamoDB

Legacy DynamoDB conditional parameters

This document provides an overview of legacy conditional parameters in DynamoDB and recommends using the new expression parameters instead. It covers details on parameters like AttributesToGet, AttributeUpdates, ConditionalOperator, Expected, KeyConditions, QueryFilter, and ScanFilter, and provides examples of how to use the new expression parameters as replacements.

Important

We recommend that you use the new expression parameters instead of these legacy parameters whenever possible. For more information, see Using expressions in DynamoDB.

Additionally, DynamoDB does not allow mixing legacy conditional parameters and expression parameters in a single call. For example, calling the Query operation with AttributesToGet and ConditionExpression will result in an error.

The following table shows the DynamoDB API operations that still support these legacy parameters, and which expression parameter to use instead. This table can be helpful if you are considering updating your applications so that they use expression parameters instead.

If you use this API operation... With these legacy parameters... Use this expression parameter instead BatchGetItem AttributesToGet ProjectionExpression DeleteItem Expected ConditionExpression GetItem AttributesToGet ProjectionExpression PutItem Expected ConditionExpression Query AttributesToGet ProjectionExpression KeyConditions KeyConditionExpression QueryFilter FilterExpression Scan AttributesToGet ProjectionExpression ScanFilter FilterExpression UpdateItem AttributeUpdates UpdateExpression Expected ConditionExpression

The following sections provide more information about legacy conditional parameters.

UpdateTable

AttributesToGet

Did this page help you? - Yes

Thanks for letting us know we're doing a good job!

If you've got a moment, please tell us what we did right so we can do more of it.

Did this page help you? - No

Thanks for letting us know this page needs work. We're sorry we let you down.

If you've got a moment, please tell us how we can make the documentation better.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4