``get``
=======
.. contents:: :local:
 :depth: 1
Description
------------
Gets a database system by identifier. 


Usage
-----
.. code-block:: none

  oci psql db-system get [OPTIONS]

Required Parameters
--------------------
.. option:: --db-system-id [text]

A unique identifier for the database system.


Optional Parameters
--------------------
.. option:: --excluded-fields [text]

A filter to exclude database configuration when this query parameter is set to OverrideDbConfig.

Accepted values are:

.. code-block:: py

    dbConfigurationParams

.. option:: --from-json [text]

Provide input to this command as a JSON document from a file using the file://path-to/file syntax.

The :option:`--generate-full-command-json-input` option can be used to generate a sample json file to be used with this command option. The key names are pre-populated and match the command option names (converted to camelCase format, e.g. compartment-id --> compartmentId), while the values of the keys need to be populated by the user before using the sample file as an input to this command. For any command option that accepts multiple values, the value of the key can be a JSON array.

Options can still be provided on the command line. If an option exists in both the JSON document and the command line then the command line specified value will be used.

For examples on usage of this option, please see our "using CLI with advanced JSON options" link: https://docs.cloud.oracle.com/iaas/Content/API/SDKDocs/cliusing.htm#AdvancedJSONOptions



Global Parameters
------------------
Use ``oci --help`` for help on global parameters.

:option:`--auth-purpose`, :option:`--auth`, :option:`--cert-bundle`, :option:`--cli-auto-prompt`, :option:`--cli-rc-file`, :option:`--config-file`, :option:`--connection-timeout`, :option:`--debug`, :option:`--defaults-file`, :option:`--endpoint`, :option:`--generate-full-command-json-input`, :option:`--generate-param-json-input`, :option:`--help`, :option:`--latest-version`, :option:`--max-retries`, :option:`--no-retry`, :option:`--opc-client-request-id`, :option:`--opc-request-id`, :option:`--output`, :option:`--profile`, :option:`--proxy`, :option:`--query`, :option:`--raw-output`, :option:`--read-timeout`, :option:`--realm-specific-endpoint`, :option:`--region`, :option:`--release-info`, :option:`--request-id`, :option:`--version`, :option:`-?`, :option:`-d`, :option:`-h`, :option:`-i`, :option:`-v`



Example using required parameter
------------------

Copy and paste the following example into a JSON file, replacing the example parameters with your own.

.. code-block:: none
    :class: copy-code-block

    
	oci psql db-system create --generate-param-json-input network-details > network-details.json
	oci psql db-system create --generate-param-json-input storage-details > storage-details.json
	


Copy the following CLI commands into a file named example.sh. Run the command by typing "bash example.sh" and replacing the example parameters with your own.

Please note this sample will only work in the POSIX-compliant bash-like shell. You need to set up `the OCI configuration  <https://docs.oracle.com/en-us/iaas/Content/API/SDKDocs/cliinstall.htm#configfile>`__ and `appropriate security policies  <https://docs.oracle.com/en-us/iaas/Content/Identity/Concepts/policygetstarted.htm>`__ before trying the examples.

.. code-block:: none
    :class: copy-code-block

    
	export compartment_id=<substitute-value-of-compartment_id> # https://docs.cloud.oracle.com/en-us/iaas/tools/oci-cli/latest/oci_cli_docs/cmdref/psql/db-system/create.html#cmdoption-compartment-id
	export db_version=<substitute-value-of-db_version> # https://docs.cloud.oracle.com/en-us/iaas/tools/oci-cli/latest/oci_cli_docs/cmdref/psql/db-system/create.html#cmdoption-db-version
	export display_name=<substitute-value-of-display_name> # https://docs.cloud.oracle.com/en-us/iaas/tools/oci-cli/latest/oci_cli_docs/cmdref/psql/db-system/create.html#cmdoption-display-name
	export shape=<substitute-value-of-shape> # https://docs.cloud.oracle.com/en-us/iaas/tools/oci-cli/latest/oci_cli_docs/cmdref/psql/db-system/create.html#cmdoption-shape
	
	db_system_id=$(oci psql db-system create --compartment-id $compartment_id --db-version $db_version --display-name $display_name --network-details file://network-details.json --shape $shape --storage-details file://storage-details.json --query data.id --raw-output)
	
	oci psql db-system get --db-system-id $db_system_id