Oracle Responsys, a component of Oracle Marketing Cloud, lets organizations manage and orchestrate marketing campaigns and interactions with customers across email, mobile, social, display, and the web. Responsys provides cross-channel orchestration of customer touchpoints using the medium(s) customers prefer.

When it was released in 2013, Amazon Redshift was the first cloud data warehouse. It uses defined schemas, columnar data storage, and massively parallel processing (MPP) architecture to provide a base for analytics reporting.

Responsys has a REST API that you can use to get at information stored in the platform. For example, to retrieve an email or push campaign schedule, you would call GET /rest/api/v1.3/campaigns/{campaignName}/schedule/{scheduleId}.

Here's an example of the kind of response you might see with a query like the one above.

{
    "id": 1491,
    "scheduleType": "ONCE",
    "scheduledTime": "2019-01-25 06:00 AM",
    "launchOptions": {
        "proofLaunch": true,
        "proofLaunchEmail": "someemail@a.com",
        "proofLaunchType": "LAUNCH_TO_ADDRESS",
        "recipientLimit": 3,
        "samplingNthSelection": 1,
        "samplingNthOffset": 1,
        "samplingNthInterval": 1,
        "progressEmailAddresses": [
            "email1@a.com",
            "email2@a.com"
        ],
        "progressChunk": "CHUNK_10K",
        "links": [
            {
                "rel": "self",
                "href": "/rest/api/v1.3/campaigns/test/schedule/1491",
                "method": "POST"
            },
            {
                "rel": "createSchedule",
                "href": "/rest/api/v1.3/campaigns/test/schedule",
                "method": "GET"
            },
            {
                "rel": "updateSchedule",
                "href": "rest/api/v1.3/campaigns/test/schedule/1491",
                "method": "PUT"
            },
            {
                "rel": "deleteSchedule",
                "href": "rest/api/v1.3/campaigns/test/schedule/1491",
                "method": "DELETE"
            }
        ]
    }
}

If you don't already have a data structure in which to store the data you retrieve, you'll have to create a schema for your data tables. Then, for each value in the response, you'll need to identify a predefined datatype (INTEGER, DATETIME, etc.) and build a table that can receive them. Responsys's documentation should tell you what fields are provided by each endpoint, along with their corresponding datatypes.

Complicating things is the fact that the records retrieved from the source may not always be "flat" – some of the objects may actually be lists. In these cases you'll likely have to create additional tables to capture the unpredictable cardinality in each record.

Once you have identified all of the columns you will want to insert, you can use the CREATE TABLE statement in Redshift to create a table that can receive all of this data.

With a table built, it may seem like the easiest way to migrate your data (especially if there isn't much of it) is to build INSERT statements to add data to your Redshift table row by row. If you have any experience with SQL, this will be your gut reaction. But beware! Redshift isn't optimized for inserting data one row at a time. If you have a high volume of data to be inserted, you would be better off loading the data into Amazon S3 and then using the COPY command to load it into Redshift.

At this point you've coded up a script or written a program to get the data you want and successfully moved it into your data warehouse. But how will you load new or updated data? It's not a good idea to replicate all of your data each time you have updated records. That process would be painfully slow and resource-intensive.

Responsys lacks key fields that a script could use to bookmark its progression as it looks for updated data. However, you can create .csv or .txt files as part of a Responsys Connect data export job and use a date/time prefix or suffix in the file names. You could then set up your script as a cron job or continuous loop to get new data as it's exported from Responsys.

Redshift is great, but sometimes you need to optimize for different things when you're choosing a data warehouse. Some folks choose to go with Google BigQuery, PostgreSQL, Snowflake, or Microsoft Azure SQL Data Warehouse, which are RDBMSes that use similar SQL syntax, or Panoply, which works with Redshift instances. Others choose a data lake, like Amazon S3 or Delta Lake on Databricks. If you're interested in seeing the relevant steps for loading data into one of these platforms, check out To BigQuery, To Postgres, To Snowflake, To Panoply, To Azure Synapse Analytics, To S3, and To Delta Lake.