The System.Data.OracleClient namespace is the .NET Framework Data Provider for Oracle.

The .NET Framework Data Provider for Oracle describes a collection of classes for accessing an Oracle data source in the managed space. Using the OracleDataAdapter class, you can fill a memory-resident DataSet, query it, and use it to update the data source.

For additional information about how to use this namespace, see the OracleDataReader, OracleCommand, and OracleConnection classes.

Note
For conceptual information about using this namespace when programming with the .NET Framework, see Using the .NET Framework Data Provider for Oracle.

The .NET Framework Data Provider for Oracle supports a number of Oracle data types, including the BFILE, LOB, and REF CURSOR data types. For information about using Oracle data types in parameters, see OracleType.

 Classes

	Class	Description
	OracleBFile	Represents a managed OracleBFile object designed to work with the Oracle BFILE data type. This class cannot be inherited.
	OracleClientFactory	Represents a set of methods for creating instances of the Oracle provider's implementation of the data source classes.
	OracleCommand	Represents an SQL statement or stored procedure to execute against a database. This class cannot be inherited.
	OracleCommandBuilder	Automatically generates single-table commands used to reconcile changes made to a DataSet with the associated database. This class cannot be inherited.
	OracleConnection	Represents an open connection to a database. This class cannot be inherited.
	OracleConnectionStringBuilder	Provides a simple way to create and manage the contents of connection strings used by the OracleConnection class.
	OracleDataAdapter	Represents a set of data commands and a connection to a database that are used to fill the DataSet and update the database. This class cannot be inherited.
	OracleDataReader	Provides a way of reading a forward-only stream of data rows from a data source. This class cannot be inherited.
	OracleException	The exception that is generated when a warning or error is returned by an Oracle database or the .NET Framework Data Provider for Oracle. This class cannot be inherited.
	OracleInfoMessageEventArgs	Provides data for the InfoMessage event. This class cannot be inherited.
	OracleLob	Represents a large object binary (LOB) data type stored on an Oracle server. This class cannot be inherited.
	OracleParameter	Represents a parameter to an OracleCommand and optionally its mapping to a DataColumn. This class cannot be inherited.
	OracleParameterCollection	Represents a collection of parameters relevant to an OracleCommand as well as their respective mappings to columns in a DataSet. This class cannot be inherited.
	OraclePermission	Enables the .NET Framework Data Provider for Oracle to help ensure that a user has a security level adequate to access an Oracle database.
	OraclePermissionAttribute	Associates a security action with a custom security attribute.
	OracleRowUpdatedEventArgs	Provides data for the RowUpdated event. This class cannot be inherited.
	OracleRowUpdatingEventArgs	Provides data for the RowUpdating event.
	OracleTransaction	Represents a transaction to be made in the database.

 Structures

	Structure	Description
	OracleBinary	Represents a variable-length stream of binary data to be stored in or retrieved from a database.
	OracleBoolean	Represents the value returned from a database comparison operation between Oracle data types, and exposes methods used to perform data type conversions.
	OracleDateTime	Represents date and time data ranging in value from January 1, 4712 BC to December 31, 4712 AD.
	OracleMonthSpan	Represents a time interval in months and corresponds to the Oracle 9i INTERVAL YEAR TO MONTH data type.
	OracleNumber	Represents a fixed precision and scale numeric value between -10 27 -1 and 10 27 -1 to be stored in or retrieved from a database.
	OracleString	Represents a variable-length stream of characters to be stored in or retrieved from the database.
	OracleTimeSpan	Represents a time interval and corresponds to the Oracle 9i INTERVAL DAY TO SECOND data type.

 Delegates

	Delegate	Description
	OracleInfoMessageEventHandler	Represents the method that will handle the InfoMessage event of an OracleConnection.
	OracleRowUpdatedEventHandler	Represents the method that will handle the RowUpdated event of an OracleDataAdapter.
	OracleRowUpdatingEventHandler	Represents the method that will handle the RowUpdating event of an OracleDataAdapter.

 Enumerations

	Enumeration	Description
	OracleLobOpenMode	Specifies whether an OracleLob should be opened in read-only or read/write mode.
	OracleType	Specifies the data type of a field or property for use in an OracleParameter.