Looker Tutorials

Helpful Looker Tutorials

Renaming and Retiring LookML Fields Without Breaking Dashboards

September 9, 2026 · Vistelio

Every mature Looker project accumulates fields nobody should use any more: revenue_v2, the metric finance disowned, the dimension that was a typo in 2022. Deleting them breaks saved Looks, schedules and embedded tiles. This tutorial walks through a repeatable deprecation workflow for LookML: proving a field is unused, staging a rename with aliases, using the Content Validator to repair saved content, and closing the window with a clean removal.

Dates, Timezones, and Fiscal Calendars in LookML: Getting Time Right

September 9, 2026 · Vistelio

A practical LookML tutorial on time: how dimension_group: time really works, the three-timezone model that decides what a "day" means, fiscal calendars with fiscal_month_offset, date-range joins, and period-over-period comparisons that survive month-end.

LookML Dashboards as Code: Versioning the Dashboards Your Business Cannot Afford to Break

September 9, 2026 · Vistelio

A practical guide to LookML dashboards: when to use them instead of user-defined dashboards, dashboard file syntax and the listen block, converting existing UDDs with Get LookML, extends for regional variants, and using the Content Validator as a deployment gate.

Looker Git Workflow in Practice: Branches, Pull Requests, Advanced Deploy Mode, and Deploy Webhooks

September 9, 2026 · Vistelio

Most Looker instances still deploy to production the moment a developer clicks a button. This tutorial shows how to run a real Git workflow for LookML: branch naming, pull requests, protected main, Advanced Deploy Mode, deploy webhooks, and a dev-to-prod promotion path your data team can actually live with.

Building a Looker Extension: Extension Framework, Components, and Write-Back

September 9, 2026 · Vistelio

Dashboards are read-only. The Extension Framework lets you ship a real React app inside Looker: this tutorial covers scaffolding, the manifest entitlements, the API 4.0 SDK, Looker Components, safe write-back via fetchProxy and Actions, and deploying the bundle through Git.

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