Media Server 25.4
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# Insert Data into a Vertica Database

To insert records into a Vertica database, use the Vertica output engine.

The Vertica output engine uses an XSL template to transform the XML produced by Media Server into a format, such as a CSV file, that can be inserted into the database. It then connects to the database using ODBC and inserts the information using a `COPY` query:

    COPY <table>
    FROM LOCAL '<local_file>'
    DELIMITER '<delimiter>'
    ENCLOSED BY '<quote>'
    ESCAPE AS '<escape>'

where:

`<table>` is the Vertica database table to copy data into. This is read from the `TrackMapping` configuration parameter.

`<delimiter>`, `<quote>`, and `<escape>` are replaced by values from the corresponding configuration parameters.

To insert records into a Vertica database

1. Create a new configuration to send to Media Server with the `process` action, or open an existing configuration that you want to modify.

2. In the `[Session]` section, add a new task by setting the `EngineN` parameter. You can give the task any name, for example:

       [Session]
       Engine0=VerticaOutput

3. Create a new configuration section to contain the task settings, and set the following parameters:

   `Type` | The output engine to use. Set this parameter to `vertica`.
   `TrackMapping` | The tracks that you want to output, mapped to Vertica database tables.
   `OdbcConnectionString` | The ODBC connection string to use to connect to the database. For information about how to connect to a Vertica database, refer to the Vertica documentation.
   `XMLOutputPath` | The path to the directory to use for temporary files and saved output.
   `XSLTemplate` | The XSL template to use to transform records from analysis engines to a format that can be inserted into the database (such as a CSV file).
   `OutputInterval` | (Optional) The interval between inserting batches of records into the database. The default interval is 60 seconds.

   For example:

       [VerticaOutput]
       Type=vertica
       TrackMapping0=FaceRecog.Result : face_recognition
       TrackMapping1=Ocr.Result : ocr
       OdbcConnectionString=DSN=mydb
       XMLOutputPath=./tmp
       XSLTemplate=toCSV.xsl
       OutputInterval=120s

   For more information about the parameters that you can set to configure a Vertica output task, refer to the Media Server Reference.

4. Save and close the configuration file. OpenText recommends that you save your configuration files in the location specified by the `ConfigDirectory` parameter.

Copyright 2025 Open Text
Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Media Server 25.4

Topic Title: Insert Data into a Vertica Database