Represents a request to perform an UpdateItem operation.
In the following list, the required parameters are described first.
The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.
Type: String to AttributeValue object map
Key Length Constraints: Maximum length of 65535.
Required: Yes
Name of the table for the UpdateItem request. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 1024.
Required: Yes
An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.
Type: String
Required: Yes
A condition that must be satisfied in order for a conditional update to succeed.
Type: String
Required: No
One or more substitution tokens for attribute names in an expression.
Type: String to string map
Value Length Constraints: Maximum length of 65535.
Required: No
One or more values that can be substituted in an expression.
Type: String to AttributeValue object map
Required: No
Use ReturnValuesOnConditionCheckFailure to get the item attributes if the Update condition fails. For ReturnValuesOnConditionCheckFailure, the valid values are: NONE and ALL_OLD.
Type: String
Valid Values: ALL_OLD | NONE
Required: No
For more information about using this API in one of the language-specific AWS SDKs, see the following:
TransactWriteItem
UpdateGlobalSecondaryIndexAction
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