DROP RESOURCE POOL (Transact-SQL)
Applies to: 
SQL Server
Azure SQL Managed Instance
Deletes a user-defined resource governor resource pool for a Database Engine instance.
Note
For Azure SQL Managed Instance, you must be in the context of the master database to modify resource governor configuration.
Transact-SQL syntax conventions
Syntax
DROP RESOURCE POOL pool_name
[ ; ]
Arguments
pool_name
Is the name of an existing user-defined resource pool.
Remarks
You can't drop a resource pool if it contains any workload groups.
You can't drop the built-in default and internal pools.
For more information, see Resource governor and Resource governor resource pool.
Permissions
Requires the CONTROL SERVER permission.
Examples
The following example deletes the resource pool named big_pool and makes the new configuration effective.
DROP RESOURCE POOL big_pool;
ALTER RESOURCE GOVERNOR RECONFIGURE;