Data > Course of Datomic Queries: Identity, navigation and nested queries is part of courses of em Data. Discussions about this course
Course summary Use your own unique identifiers Make relationships between entities Use forward e backward navigation in your queries Use nested maps e aggregations Learn how to use nested queries Work with transactions as entities Target Audience Who already knows Datomic and would like to advance its use. Related Content Courses of Data Already a student? Start the course now 10h To conclusion 49 Activities 219 Minutes of video 119 Students in this course 8.9 Grade for this course Certificate of participation Instructors Rodrigo Gunisalvo Detailed content Identity and Unique Identifiers Introduction Before we begin Our First Datomic Console Session Brief Warning about Console Caching Product by ID Defining our own unique identifiers Querying using Lookup Refs Uniqueness on inserts and updates Unique identifiers, Inserts and Updates Referencing entities Category Schema Definition Referencing other entities Cleanup the code Forward and backward navigation Reference Lookups Products by category name Forward Navigation Backwards navigation Nested maps and aggregations Nested References and Lookups Our first Aggregation Summary by category Nested queries and transactions Most expensive products in a naive way Most expensive Products using nested queries Transactions as Entities Storing meta-information in a Transaction Querying by meta-information in a Transaction Conclusion Don't study with us yet? Invest in your career! Start now
