HowTo:Import Data from an External System

For:   Designers Level: Beginner Time:  20 minutes See more:     ◾ HowTo Guides

If you have data in an external system, you can generally export it as a plain text file, with one record per line, where values in each line are separated by values. That kind of file is known as comma-separated value (Template:CSV) file. Using such files, you can import data into your application objects.

In this guide, you'll create a few items of data in a spreadsheet, and use that. But the data could come from any system that is capable of exporting CSV data.

Preparation

Using the same process HowTo:Create_a_Simple_Application, create a Movie Recommendations application. It will have the following fields:

• Movies
  • Title
  • Release Date

• Reviews
  • Rating (Number, 0 decimal places, value of 1..5)
  • Reason (Text Area)
  • By (Text Field for user name)

And the following relationships:

• One Movie can have many reviews.

Create a Spreadsheet with Sample Data

1. Create Customer data
2. Create Order data
3. Create Order Item data

Export the Data as CSV Files

1. Export Customer data
2. Export Order data
3. Export Order Item data

Import the Data

The process here is to start at the top of the lookup chain, so that the Lookups in the incoming record all resolve to an actual record. (It isn't strictly necessary to do things in that order, but it's good form.)

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