DevExpress.Xpo.DB Namespace

Contains classes that handle operations on a data store.

Assembly: DevExpress.Data.v20.1.dll

NuGet Packages: DevExpress.Data, DevExpress.WindowsDesktop.Data

Classes

Name	Description
BaseStatement	Serves as the base class for the classes that represent statements.
ConnectionProviderSql	Implements the base functionality for SQL-based data store adapters, including the MSSqlConnectionProvider and other adapters listed in the Database Systems Supported by XPO topic.
DataCacheNode	The Node element that is used to connect to a cached data store‘s Root or Node element.
DataCacheNodeLocal	The Node element that is used to connect to a cached data store‘s Root or Node element located on the local host.
DataCacheRoot	The Root element that is used to connect Node elements to a cached data store.
DataStoreBase	The base class for data store providers (the objects providing access to specific data stores).
DataStoreLogger	Enables operations performed by a specific IDataStore object to be logged.
DBColumn	The schema of a column in a DBTable.
DBForeignKey	The foreign key of a table.
DBIndex	For internal use. An index of a table.
DBNameTypePair	Stores a pair of values, specifying a DBColumnType along with its corresponding name.
DBPrimaryKey	The primary key of a table.
DBStoredProcedure	A stored procedure.
DBStoredProcedureArgument	Provides information about a stored procedure’s parameter.
DBStoredProcedureResultSet	A result set of a stored procedure.
DBTable	A table that stores a persistent object‘s data.
DBTableMultiColumnGadget	An abstract base class for DBPrimaryKey, DBForeignKey and DBIndex.
DeleteStatement	Represents the delete statement.
InsertStatement	Represents the insert statement.
JoinNode	Serves as a base for the BaseStatement class.
JoinNodeCollection	Represents a collection of JoinNode objects.
ModificationResult	Represents the result of an update operation on a data store.
ModificationStatement	Serves as the base class for classes that represent modification statements.
ParameterValue	This class supports the internal infrastructure and is not intended to be used directly from your code.
QueryOperand	Represents a query operand.
QueryOperandCollection	Represents a collection of QueryOperand objects.
QueryParameterCollection	Represents a collection of OperandValue objects.
QuerySortingCollection	Represents a collection of SortingColumn objects.
SelectedData	Represents the result of batch select queries made to a data store.
SelectStatement	Represents the select statement.
SelectStatementResult	Represents the result of a single select query to a data store.
SortingColumn	Represents a sorting column in a query.
UpdateStatement	Represents the update statement.

Interfaces

Name	Description
ICachedDataStore	The interface for objects that need to interact with a cached data store.
ICacheToCacheCommunicationCore	Provides methods for transferring data between cached data store elements.
IDataStore	The interface for objects that need to interact with a data store.
IDataStoreAsync	The interface for objects that need to interact with a data store asynchronously.
ISqlDataStore	Represents the interface for objects that need to interact with SQL Server databases,

Enums

Name	Description
AutoCreateOption	Lists the values that specify the action which is performed when a session is connected to a data store.
CommandPoolBehavior	Contains values that specify the command pool behavior.
DBColumnType	Lists the supported database column types.
DBStoredProcedureArgumentDirection	Lists the directions available for a stored procedure’s parameter.
JoinType	Lists the values that specify the join type.
QueryParameterMode	The enumeration describes how connection providers initialize command parameters.
SortingDirection	Lists the values that specify the sort order.
UpdateSchemaResult	Lists the values that specify the result of the data store schema update operation.