Models and databases

A model is the single, definitive source of data about your data. It containsthe essential fields and behaviors of the data you’re storing. Generally, eachmodel maps to a single database table.

• Models
• Making queries
• Aggregation
• Search
• Managers
• Performing raw SQL queries
• Database transactions
• Multiple databases
• Tablespaces
• Database access optimization
• Database instrumentation
• Examples of model relationship API usage