语句如下：

    1. create_resource_unit_stmt:
    2.     CREATE RESOURCE UNIT unit_name
    3.     unit_option_list;
    5. alter_resource_unit_stmt:
    6.     ALTER RESOURCE UNIT unit_name
    7.     unit_option_list;
    9. drop_resource_unit_stmt:
    10.     DROP RESOURCE UNIT unit_name;
    12. create_resource_pool_stmt:
    13.     CREATE RESOURCE POOL pool_name
    14.     pool_option_list;
    16. alter_resource_pool_stmt:
    17.     ALTER RESOURCE POOL pool_name
    18.     pool_option;
    20. drop_resource_pool_stmt:
    21.     DROP RESOURCE POOL pool_name;
    23. unit_option_list:
    24.     unit_option [, unit_option ...]
    26. unit_option:
    27.       MAX_CPU [=] {INT_VALUE | DECIMAL_VALUE},
    28.     | MAX_MEMORY [=] STORAGE_SIZE,
    29.     | MAX_IOPS [=] INT_VALUE,
    30.     | MAX_DISK_SIZE [=] STORAGE_SIZE,
    31.     | MAX_SESSION_NUM [=] INT_VALUE
    32.     | MIN_CPU [=] {INT_VALUE | DECIMAL_VALUE}
    33.     | MIN_MEMORY [=] STORAGE_SIZE
    34.     | MIN_IOPS [=] INT_VALUE
    36. pool_option_list:
    37.     pool_option [, pool_option ...]
    39. pool_option:
    40.       UNIT [=] unit_name
    41.     | UNIT_NUM [=] INT_VALUE
    42.     | ZONE_LIST [=] zone_list