Splunk DB connect is the generic SQL database plugin that helps in integrating the database with Splunk queries and reports. Through DB connect, we can combine the structured data from databases with the unstructured machine data, and then use Splunk Enterprise to provide insights into all of that combined data.  DB Connect allows us to output data from Splunk Enterprise back to the relational database. We can map the Splunk Enterprise fields to the database tables that we want to write.  DB Connect performs the database lookups, which match fields in the reference fields to an external database for the event data. With the help of these matches, user can enrich the event data better by adding more meaningful information and searchable fields.   Other than this DB Connect is beneficial with below:  Splunk DB Connect is beneficial for users for the scenario where we want to quickly get data from a database into Splunk Enterprise and want to perform lookups from data warehouses or state tables within Splunk Enterprise.  DB Connect is beneficial to preview data and validate settings example locale and time zone, rising column and metadata choice etc before indexing begins, to prevent accidental duplication or other issues at later stages.   DB Connect is also beneficial when we need to scale, distribute, and monitor database read or write jobs which prevent in overloading and receiving notice of failures  Reference: Splunk Official Document