Your Database Is Your Friend

What is this? 1m 47s Logistics 1m 39s

Introduction 0m 54s The Unexpected Nil 1m 0s Nil versus Empty String 1m 49s ActiveRecord Validation 1m 12s Not Nil Database Migration 2m 7s The Unexpected Nil: Recap 1m 28s The Missing Parent 1m 13s ActiveRecord has_many options 3m 7s Foreign Keys 2m 11s Cascading Deletes 1m 6s Schema.rb and Foreigner gem 1m 50s The Missing Parent: Recap 1m 11s Duplicate Data 1m 57s Resolving Duplicates 3m 18s Retrying Duplicate Exceptions 3m 19s One-to-one Relationships 1m 36s Duplicate Data: Recap 1m 13s Polymorphic Associations 1m 24s Converting to Separate Tables 2m 24s Reactive Integrity Tests 1m 40s Wrapping Up 2m 13s

Introduction 0m 46s A Development Environment for Concurrency 1m 43s Concurrent Requests Primer 2m 2s Concurrency and Unique Constraints 2m 5s Concurrency and Foreign Keys 1m 16s Thinking Concurrently 1m 7s Optimistic Locking Introduction 1m 40s Optimistic Locking with ActiveRecord 1m 43s Counters 1m 24s Optimistic Locking Recap 0m 44s Pessimistic Locking 2m 36s Pessimistic Locking Recap 0m 50s Concurrency in the Real World 2m 53s Combined Locking Example 6m 25s Acts as List 3m 36s Isolation Levels 5m 35s Summary 1m 43s

What is reporting? 4m 53s Introduction to Star Schemas 2m 45s Creating a Star Schema 2m 7s Using a Star Schema 2m 27s Calendar Tables 4m 27s Multi-valued Dimensions: Creating 4m 23s Multi-valued Dimensions: Querying 3m 18s Columnar Databases 2m 3s Summary 1m 38s

Introduction 0m 44s Handling Invalid Data 1m 47s InnoDB Locking 3m 17s Deadlocks 2m 23s Scan Locks 1m 41s Summary 0m 25s