Represents a connection with a database server.
Represents a database diver containing all specificities for a database engine including its SQL dialect
Contains methods related to generating FunctionExpression objects with most commonly used SQL functions. This acts as a factory for FunctionExpression objects.
This class represents a Relational database SQL Query. A query can be of different types like select, update, insert and delete. Exposes the methods for dynamically constructing each query part, execute it and transform it to a specific SQL dialect.
Encapsulates all conversion functions for values coming from database into PHP and going from PHP into database.
Implements default and single-use mappings for columns to their associated types
Exception for the database package.