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Last tested: May 2020
When you first make a project, you are prompted to generate LookML for it based on a database connection. You won't get this option a second time, mostly because we assume you've made changes to the model file since then.
You can, however, create a new view from a database table by clicking the plus sign ("Add Files") in the LookML IDE and choosing "Create View From Table".
This content is subject to limited support.