**To describe all available options** The following ``describe-option-group-options`` example lists two options for an Oracle Database 19c instance. :: aws rds describe-option-group-options \ --engine-name oracle-ee \ --major-engine-version 19 \ --max-items 2 Output:: { "OptionGroupOptions": [ { "Name": "APEX", "Description": "Oracle Application Express Runtime Environment", "EngineName": "oracle-ee", "MajorEngineVersion": "19", "MinimumRequiredMinorEngineVersion": "0.0.0.ru-2019-07.rur-2019-07.r1", "PortRequired": false, "OptionsDependedOn": [], "OptionsConflictsWith": [], "Persistent": false, "Permanent": false, "RequiresAutoMinorEngineVersionUpgrade": false, "VpcOnly": false, "SupportsOptionVersionDowngrade": false, "OptionGroupOptionSettings": [], "OptionGroupOptionVersions": [ { "Version": "19.1.v1", "IsDefault": true }, { "Version": "19.2.v1", "IsDefault": false } ] }, { "Name": "APEX-DEV", "Description": "Oracle Application Express Development Environment", "EngineName": "oracle-ee", "MajorEngineVersion": "19", "MinimumRequiredMinorEngineVersion": "0.0.0.ru-2019-07.rur-2019-07.r1", "PortRequired": false, "OptionsDependedOn": [ "APEX" ], "OptionsConflictsWith": [], "Persistent": false, "Permanent": false, "RequiresAutoMinorEngineVersionUpgrade": false, "VpcOnly": false, "OptionGroupOptionSettings": [] } ], "NextToken": "eyJNYXJrZXIiOiBudWxsLCAiYm90b190cnVuY2F0ZV9hbW91bnQiOiAyfQ==" } For more information, see `Listing the Options and Option Settings for an Option Group <https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_WorkingWithOptionGroups.html#USER_WorkingWithOptionGroups.ListOption>`__ in the *Amazon RDS User Guide*.