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Amazon DynamoDB Update Item

KNIME Amazon DynamoDB Nodes version 4.3.0.v202011231544 by KNIME AG, Zurich, Switzerland

This node allows conditional updates to items in DynamoDB using Update Expressions. Whether an item is updated or not depends on the Condition Expression.

Options

Region
The region the table is in.
Table Name
The table to access.
Custom Endpoint (*)
A custom endpoint if the default AWS endpoint should not be used, e.g. for DynamoDB Local.
Hash Key
The column holding the hash keys of the items to update.
Range Key (*)
The column holding the range keys of the items to update.
Condition Expression (*)
An expression specifying which items to update. See the AWS Documentation for further information.
Update Expression
An expression specifying which attributes to update in what way. See AWS Documentation for further information.
Return Values
Which values to return in the output table. Choosing any other value than None may result in consumption of additional read capacity units.
Name Mapping
Mapping from placeholder to attribute name for the condition and update expressions. Placeholders for attribute names must start with a hash (#).
Value Mapping
Mapping from placeholder to value for the condition and update expressions. Value placeholders must start with a colon (:). If the type is list, set, or map, the value must be given as JSON as specified in the AWS Documentation. If COLUMN is selected as type, the value is retrieved from a table column and inserted into the expression.
Publish consumed capacity units as flow variable
If checked, the total number of consumed read and write capacity units is published as flow variable.

Input Ports

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Credentials for an AWS account
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Data to update

Output Ports

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Credentials for an AWS account
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Updated items as defined by the return value setting

Best Friends (Incoming)

Installation

To use this node in KNIME, install KNIME Amazon DynamoDB Nodes from the following update site:

KNIME 4.3

A zipped version of the software site can be downloaded here.

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Developers

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