What Is Looker? The Complete Guide to LookML, Multi-Source Data, Joins, Calculated Metrics, and Governance
Looker is not a dashboard tool. It is a semantic layer platform built around LookML — a modeling language that defines your business logic once and enforces it across every report, every user, and every team. This guide covers everything: architecture, LookML fundamentals, joins, calculated metrics, derived tables, access control, scheduling, performance, and real-world use cases.
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