CodeIgniter comes with a full-featured and very fast abstracted database class that supports both traditional structures and Query Builder patterns. The database functions offer clear, simple syntax.
- Quick Start: Usage Examples
 - Database Configuration
 - Connecting to a Database
 - Running Queries
 - Generating Query Results
 - Query Helper Functions
 - Query Builder Class
 - Transactions
 - Getting MetaData
 - Custom Function Calls
 - Query Caching
 - Database Manipulation with Database Forge
 - Database Utilities Class
 - Database Driver Reference
 
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