The database abstraction layer

• Dependencies
• The DAL: A quick tour
• Using the DAL “stand-alone”
• DAL constructor
• Table constructor
• Field constructor
• Migrations
• Fixing broken migrations
• Migration control summary
• insert
• commit and rollback
• Raw SQL
• drop
• Indexes
• Legacy databases and keyed tables
• Distributed transaction
• More on uploads
• Query, Set, Rows
• select
• Other methods
• Computed fields
• Virtual fields
• One to many relation
• Many to many
• list:type and contains
• Other operators
• Generating raw sql
• Exporting and importing data
• Caching selects
• Self-Reference and aliases
• Advanced features
• Gotchas