yii\db

Namespaces

Namespace	Types
`yii\db\conditions`	21
`yii\db\mssql`	13
`yii\db\mysql`	5
`yii\db\oci`	9
`yii\db\pgsql`	7
`yii\db\sqlite`	8

Classes

Class	Summary
`ActiveQuery`	ActiveQuery represents a DB query associated with an Active Record class.
`ActiveRecord`	ActiveRecord is the base class for classes representing relational data in terms of objects.
`AfterSaveEvent`	AfterSaveEvent represents the information available in `ActiveRecord::EVENT_AFTER_INSERT` and `ActiveRecord::EVENT_AFTER_UPDATE`.
`ArrayExpression`	Class ArrayExpression represents an array SQL expression.
`BaseActiveRecord` abstract	ActiveRecord is the base class for classes representing relational data in terms of objects.
`BatchQueryResult`	BatchQueryResult represents a batch query from which you can retrieve data in batches.
`CheckConstraint`	CheckConstraint represents the metadata of a table `CHECK` constraint.
`ColumnSchema`	ColumnSchema class describes the metadata of a column in a database table.
`ColumnSchemaBuilder`	ColumnSchemaBuilder helps to define database schema types using a PHP interface.
`Command`	Command represents a SQL statement to be executed against a database.
`Connection`	Connection represents a connection to a database via PDO.
`Constraint`	Constraint represents the metadata of a table constraint.
`DataReader`	DataReader represents a forward-only stream of rows from a query result set.
`DefaultValueConstraint`	DefaultValueConstraint represents the metadata of a table `DEFAULT` constraint.
`Exception`	Exception represents an exception that is caused by some DB-related operations.
`Expression`	Expression represents a DB expression that does not need escaping or quoting.
`ExpressionBuilder`	Class ExpressionBuilder builds objects of `Expression` class.
`ForeignKeyConstraint`	ForeignKeyConstraint represents the metadata of a table `FOREIGN KEY` constraint.
`IndexConstraint`	IndexConstraint represents the metadata of a table `INDEX` constraint.
`IntegrityException`	Exception represents an exception that is caused by violation of DB constraints.
`JsonExpression`	Class JsonExpression represents data that should be encoded to JSON.
`Migration`	Migration is the base class for representing a database migration.
`PdoValue` final	Class PdoValue represents a $value that should be bound to PDO with exact $type.
`PdoValueBuilder`	Class PdoValueBuilder builds object of the `PdoValue` expression class.
`Query`	Query represents a SELECT SQL statement in a way that is independent of DBMS.
`QueryBuilder`	QueryBuilder builds a SELECT SQL statement based on the specification given as a `Query` object.
`QueryExpressionBuilder`	Class QueryExpressionBuilder is used internally to build `Query` object using unified `QueryBuilder` expression building interface.
`Schema` abstract	Schema is the base class for concrete DBMS-specific schema classes.
`SqlToken`	SqlToken represents SQL tokens produced by `SqlTokenizer` or its child classes.
`SqlTokenizer` abstract	SqlTokenizer splits an SQL query into individual SQL tokens.
`StaleObjectException`
`TableSchema`	TableSchema represents the metadata of a database table.
`Transaction`	Transaction represents a DB transaction.

Interfaces

Interface	Summary
`ActiveQueryInterface`	ActiveQueryInterface defines the common interface to be implemented by active record query classes.
`ActiveRecordInterface`	ActiveRecordInterface.
`ConstraintFinderInterface`	ConstraintFinderInterface defines methods for getting a table constraint information.
`ExpressionBuilderInterface`	Interface ExpressionBuilderInterface is designed to build raw SQL from specific expression objects that implement `ExpressionInterface`.
`ExpressionInterface`	Interface ExpressionInterface should be used to mark classes, that should be built in a special way.
`MigrationInterface`	The MigrationInterface defines the minimum set of methods to be implemented by a database migration.
`QueryInterface`	The QueryInterface defines the minimum set of methods to be implemented by a database query.

Traits

Trait	Summary
`ActiveQueryTrait`	ActiveQueryTrait implements the common methods and properties for active record query classes.
`ActiveRelationTrait`	ActiveRelationTrait implements the common methods and properties for active record relational queries.
`ConstraintFinderTrait`	ConstraintFinderTrait provides methods for getting a table constraint information.
`ExpressionBuilderTrait`	Trait ExpressionBuilderTrait provides common constructor for classes that should implement `ExpressionBuilderInterface`
`QueryTrait`	The BaseQuery trait represents the minimum method set of a database Query.
`SchemaBuilderTrait`	SchemaBuilderTrait contains shortcut methods to create instances of `ColumnSchemaBuilder`.
`ViewFinderTrait`	ViewFinderTrait implements the method getViewNames for finding views in a database.