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Last Updated:Feb 20, 2024

Cleans the data of specified databases in an instance.

Operation description

Each ApsaraDB for Redis or Tair instance can contain up to 256 databases. Each database does not have a separate memory usage limit. The memory capacity that a database can use is subject to the total memory limit of the instance. You can execute the SELECT statement to switch between databases. For more information, see What is the size of each database on an ApsaraDB for Redis instance, and how can I choose databases?

Note This operation is available only for cloud-native instances that use cloud disks.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • The required resource types are displayed in bold characters.
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
  • All Resources

Request parameters


The instance ID. You can call the DescribeInstances operation to query the ID of the instance.


The index number of the database. Valid values: 0 to 255.


Response parameters


The response body.


The ID of the request.



Sample success responses


  "RequestId": "5D622714-AEDD-4609-9167-F5DDD3D1****"

Error codes

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2023-07-25API Description Updatesee changesets
Change itemChange content
API DescriptionAPI Description Update.