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Legacy JDBC Driver

Dremio provides a JDBC driver that allows client applications to connect to Dremio Cloud. This driver is licensed under Apache-2.0.

You can download the JDBC driver from here. The driver does not require installation.


It is recommended to use the JDBC driver for Arrow Flight SQL, rather than this legacy JDBC driver.

Supported Authentication Methods

  • Use personal access tokens. To generate one, see Personal Access Tokens.
  • Use JSON Web Tokens (JWT) from an external token provider. To use a JWT, you must have OAuth enabled in Dremio Cloud. For more information about using JWTs, see External Token Providers.

Construct a Connection String for JDBC Applications


If you are using the JDBC driver to connect to Dremio Cloud from a supported client application, refer to the documentation for creating connections from that application.


If you want to start with the base JDBC connection string for your Dremio Cloud project:

  1. Click Project Settings in the side navigation bar.

  2. Select General Information in the project settings sidebar.

  3. Copy the connection string that is in the JDBC Connection field.

To construct a connection string:

  1. Set the subprotocol to jdbc:dremio:.

  2. Set the property direct equal to

  3. Add one of these types of authentication credentials for connecting from your JDBC client application to Dremio Cloud:

    • Use a personal access token (PAT) in either of the following ways:

      • Set user to $token and use the PAT as the password when the client application does not support OAuth:

        Use PAT as password when client app does not support OAuth;user=$token;password=<personal-access-token>;
      • Set token_type to personal_access_token, use the PAT as the password, and set username to null when the client application supports OAuth:

        Use PAT as password;token_type=personal_access_token;password=<personal-access-token>;username=;
    • Use a JSON Web Token (JWT). You can use a JWT when the tool used with the JDBC driver supports OAuth:

      Use a JWT;token_type=jwt;password=<jwt>;username=;
  4. Set the property ssl equal to true: ssl=true;

  5. Add the ID of the project that you are connecting to: project_id=<project-id>;

  6. (Optional) Route queries to a particular engine in your project, set the property engine to the name of an engine: engine=<engine-name>;

Encryption Parameters

To encrypt communication between your JDBC client applications and Dremio Cloud, use the SSL JDBC connection parameters and a fully qualified host name to configure the JDBC connection string and connect to Dremio.

SSL JDBC Connection ParameterTypeDescriptionDefault ValueRequired
disableCertificateVerificationbooleanControls whether the driver verifies the host certificate against the trust store.
  • The driver will verify the certificate against the trust store when it is set to false.
  • The driver will not verify the certificate against the trust store when the value is set to true
disableHostVerificationbooleanForces the driver to verify that the host in the certificate is the host being connected to.
  • The driver will verify the certificate against the host being connected to when it is set to false.
  • The driver will not verify the certificate against the host whe it is set to true.
sslbooleanForces the client to use an SSL encrypted connection to communicate with the Dremio server.
  • SSL encryption is disabled with the client when it is set to false.
  • The client communicates with the Dremio server only using SSL encryption when it is set to true.
To connect to Dremio Cloud, SSL must be enabled.
trustStoreTypestringThe trustStore type. Accepted value is: JKS PKCS12

The following property only applies to Windows.
  • If the useSystemTrustStore parameter is set to true, the accepted values are: Windows-MY and Windows-ROOT.
  • Import the certificate into the Trusted Root Certificate Authorities and set trustStoreType=Windows-ROOT.
  • Import the certificate into Trusted Root Certificate Authorities or Personal and set trustStoreType=Windows-MY.
trustStorestringPath to the truststore.
If this parameter is not specified, it defaults to Java truststore ($JAVA_HOME/lib/security/cacerts) and the trustStorePassword parameter is ignored.
useSystemTrustStorebooleanBypasses trustStoreType and automatically picks the correct truststore based on the operating system: trueNo
trustStorePasswordstringPassword to the truststore.NoneNo

SOCKS Proxy Connection Parameters

If you want to connect to Dremio Cloud through a SOCKS proxy, use these connection parameters:

ParameterTypeDescriptionDefault ValueRequired?
socksProxyHoststringThe IP address or hostname of the SOCKS proxy.N/AYes
socksProxyPortintegerThe port to use on the SOCKS proxy.1080No
socksProxyUsernamestringThe username to use for connections.N/ANo
socksProxyPasswordstringThe password to use for connections.N/AOnly if a username is specified.