| ▼CAggregateTrait | Aggregation functions |
| ▼CValueTrait | Type-agnostic functions |
| ▼CDateTimeTrait | Date-time expression manipulation |
| CColumn | Immutable column expression |
| CDateTime | A date-time expression |
| ▼CNumTrait | Numeric expression manipulation |
| CColumn | Immutable column expression |
| CNum | A numeric expression |
| ▼CStrTrait | Character string expression manipulation |
| CColumn | Immutable column expression |
| CStr | A character string expression |
| ▼CValue | A typeless value expression, which can be cast to any type |
| CBranch | A CASE expression, with or without a subject expression |
| CAttributesTrait | Forwards ArrayAccess to an EAV array property named $attributes |
| ▼CBaseConversionTrait | Further manipulate the expression in a different numeric base |
| CNumTrait | Numeric expression manipulation |
| CStrTrait | Character string expression manipulation |
| ▼CComparisonTrait | Comparative functions |
| CValueTrait | Type-agnostic functions |
| ▼CDateTimeCastTrait | Further manipulate the expression as a date-time |
| CStr | A character string expression |
| CValue | A typeless value expression, which can be cast to any type |
| ▼CDateTimeFormatTrait | Date-time formatting |
| ▼CDateTimeDiffTrait | Date-time diffing |
| CDateTimeTrait | Date-time expression manipulation |
| ▼CDateTimeModifyTrait | Date-time component modifiers |
| ▼CDateTimeAddTrait | Date-time addition helpers |
| CDateTimeTrait | Date-time expression manipulation |
| ▼CDateTimeSubTrait | Date-time subtraction helpers |
| CDateTimeTrait | Date-time expression manipulation |
| CEntityInterface | Exposes the object's auto-increment ID |
| ▼CExpressionInterface | Marks the instance as a literal SQL expression, exempt from being quoted |
| ▼CExpression | A literal expression, exempt from being quoted |
| CDateTime | A date-time expression |
| CNum | A numeric expression |
| CPredicate | A logical expression that evaluates to a boolean |
| CStr | A character string expression |
| CValue | A typeless value expression, which can be cast to any type |
| ▼CValueInterface | An expression that evaluates to a single value |
| CColumn | Immutable column expression |
| CDateTime | A date-time expression |
| CNum | A numeric expression |
| CPredicate | A logical expression that evaluates to a boolean |
| CStr | A character string expression |
| CValue | A typeless value expression, which can be cast to any type |
| CSelect | Represents a SELECT query |
| CMigrationInterface | Migrations must implement this |
| CMigrator | Migrates |
| ▼CNumCastFloatTrait | Further manipulate the expression as a float |
| CStr | A character string expression |
| CValue | A typeless value expression, which can be cast to any type |
| ▼CNumCastIntTrait | Further manipulate the expression as an integer |
| CNumTrait | Numeric expression manipulation |
| CStr | A character string expression |
| CValue | A typeless value expression, which can be cast to any type |
| ▼CReflection | Interprets classes and annotations, and manipulates objects |
| CSerializer | Converts an entity's values to/from storage types |
| ▼CStrCastTrait | Further manipulate the expression as a character string |
| CDateTime | A date-time expression |
| CNum | A numeric expression |
| CValue | A typeless value expression, which can be cast to any type |
| CTransaction | Scoped transaction/savepoint |
| ▼CArrayAccess | |
| CDB | Extends PDO and acts as a central access point for the schema |
| ▼CAbstractTable | Uses ArrayAccess to produce Column instances |
| CSelect | Represents a SELECT query |
| ▼CTable | Table manipulation using arrays |
| CEAV | Array storage in an extension table |
| CJunction | Represents a junction table, derived from an annotated interface |
| CRecord | Represents an "active record" table, derived from an annotated class implementing EntityInterface |
| CColumn | Immutable column expression |
| CSchema | Schema control and metadata |
| ▼CCountable | |
| CSelect | Represents a SELECT query |
| ▼CIteratorAggregate | |
| CSelect | Represents a SELECT query |
| ▼CPDO | |
| CDB | Extends PDO and acts as a central access point for the schema |
| ▼CPDOStatement | |
| CStatement | Extends PDOStatement for fluency and logging |