Lists the external volumes in your account for which you have access privileges.
The output returns external volume metadata and properties.
CREATE EXTERNAL VOLUME , DROP EXTERNAL VOLUME , ALTER EXTERNAL VOLUME , DESCRIBE EXTERNAL VOLUME
SHOW EXTERNAL VOLUMES [ LIKE '<pattern>' ]
Copy
Parameters¶LIKE 'pattern'
Optionally filters the command output by object name. The filter uses case-insensitive pattern matching, with support for SQL wildcard characters (% and _).
For example, the following patterns return the same results:
... LIKE '%testing%' ...
... LIKE '%TESTING%' ...
. Default: No value (no filtering is applied to the output).
A role used to execute this operation must have the following privileges at a minimum:
Privilege
Object
Notes
USAGE
External volume
To see a particular external volume in the output for SHOW EXTERNAL VOLUMES, a role must have the USAGE privilege on that external volume.
For instructions on creating a custom role with a specified set of privileges, see Creating custom roles.
For general information about roles and privilege grants for performing SQL actions on securable objects, see Overview of Access Control.
Output¶The command output provides table properties and metadata in the following columns:
Column
Description
name
Name of the external volume.
allow_writes
Signifies whether Snowflake can write files to the storage location(s).
comment
Comment for the external volume.
Usage notes¶The command doesn’t require a running warehouse to execute.
The command only returns objects for which the current user’s current role has been granted at least one access privilege.
The MANAGE GRANTS access privilege implicitly allows its holder to see every object in the account. By default, only the account administrator (users with the ACCOUNTADMIN role) and security administrator (users with the SECURITYADMIN role) have the MANAGE GRANTS privilege.
To post-process the output of this command, you can use the pipe operator (->>) or the RESULT_SCAN function. Both constructs treat the output as a result set that you can query.
The output column names for this command are generated in lowercase. If you consume a result set from this command with the pipe operator or the RESULT_SCAN function, use double-quoted identifiers for the column names in the query to ensure that they match the column names in the output that was scanned. For example, if the name of an output column is type, then specify "type" for the identifier.
Show all external volumes:
Show all the external volumes whose name starts with aws that you have privileges to view:
SHOW EXTERNAL VOLUMES LIKE 'aws%';Copy
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