Qlik Talend Data Integration: tJDBCConnection Component vs DB Native Connection Components

Xiaodi_Shi — Mon, 08 Dec 2025 02:41:52 GMT

Question

In Qlik Talend Studio, generally we use connection components to re-use the connection in job design. You may encounter some confusion about when using talend specific DB connectors, such as tsnowflakeconnection, tMySqlConnection and when using the generic tJDBCConnection component in a job?

It depends on your job requirements and use cases.

DB Native Components

For the generic JDBC component, you need to select the database type and its corresponding JDBC driver. It will serve as an entry point for the following databases tdbconnection | Qlik Talend Help and it is recommended to use DB native drivers to avoid unnecessary translation of JDBC to DB Specific calls.

NativeDBConnectionComponent

tJDBCConnection

For some use case, for example, if you need to check “Use or register a shared db connection”, since the tSnowflakeConnection component doesn't have a shared connection option, so you can't pass a connection from father to child job with a shared connection.

For more information about this feature, please refer to Qlik Help Site below:

sharing-database-connection | Qlik Help

tSnowflakeConnection component can use a shared connection as of Talend Studio R2025-04.

The jobs will be much more portable if you combine this with context variables for jdbc connections and configuration instead of relaying on specific database components. The tjdbcconnection component gets more options like the generic shared connection one, bulk load processing and it is a specific version of a dynamic database connector which uses JDBC URL to create the database connection.

tJDBCConnection

article Qlik Talend Data Integration: tJDBCConnection Component vs DB Native Connection Components in Official Support Articles

Qlik Talend Data Integration: tJDBCConnection Component vs DB Native Connection Components

Related Content

Environment