Helpful Looker Tutorials
September 9, 2026 · Vistelio
A practical guide to Looker caching: datagroups, sql_trigger vs max_cache_age, persist_with on models and explores, datagroup_trigger for PDTs, ETL-driven cache invalidation through the API, and how to prove a caching policy is working.
Read moreAugust 27, 2026 · Vistelio
Refinements (+view_name) and extends solve different problems in a growing LookML project. This tutorial shows when to use each, the gotchas that bite teams in production, and a folder layout that keeps generated views, global labels, and team-specific measures apart.
Read moreAugust 26, 2026 · Vistelio
Model Context Protocol is how AI assistants get tools. This tutorial stands up a Looker MCP server, connects Gemini CLI or Claude Desktop, walks through the tools it exposes, and covers the credentials, permissions and LookML shaping that decide whether the answers are trustworthy.
Read moreAugust 25, 2026
Looker is a versatile data analytics platform that allows businesses to gain meaningful insights from their data. However, not every piece of information is relevant for all users, and some data might be confidential or sensitive. Hence, managing access to data becomes crucial. Looker provides a feature known as role-based access control (RBAC), which allows administrators to control who can see and do what within the Looker platform. This article will guide you through implementing role-based access control in Looker.
Read moreAugust 25, 2026
A native derived table is one built with explore_source, not a SQL table that happens to be ephemeral. This corrected guide shows real NDTs, derived columns, bind_filters, persistence with datagroups, when NDTs beat SQL derived tables, and when transformations belong in dbt instead.
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