OracleCommand Class
Note: This API is now obsolete.
Represents an SQL statement or stored procedure to execute against a database. This class cannot be inherited.
System::MarshalByRefObject
System.ComponentModel::Component
System.Data.Common::DbCommand
System.Data.OracleClient::OracleCommand
Assembly: System.Data.OracleClient (in System.Data.OracleClient.dll)
The OracleCommand type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | OracleCommand() | Initializes a new instance of the OracleCommand. |
![]() | OracleCommand(String) | Initializes a new instance of the OracleCommand class with the text of the query. |
![]() | OracleCommand(String, OracleConnection) | Initializes a new instance of the OracleCommand class with the text of the query and an OracleConnection object. |
![]() | OracleCommand(String, OracleConnection, OracleTransaction) | Initializes a new instance of the OracleCommand class with the text of the query, an OracleConnection object, and an OracleTransaction. |
| Name | Description | |
|---|---|---|
![]() | CanRaiseEvents | Gets a value indicating whether the component can raise an event. (Inherited from Component.) |
![]() | CommandText | Gets or sets the SQL statement or stored procedure to execute against the database. (Overrides DbCommand::CommandText.) |
![]() | CommandTimeout | Gets or sets the wait time before terminating the attempt to execute a command and generating an error. (Overrides DbCommand::CommandTimeout.) |
![]() | CommandType | Gets or sets a value indicating how the CommandText property is interpreted. (Overrides DbCommand::CommandType.) |
![]() | Connection | Gets or sets the OracleConnection used by this instance of the OracleCommand. |
![]() | Container | Gets the IContainer that contains the Component. (Inherited from Component.) |
![]() | DbConnection | Gets or sets the DbConnection used by this DbCommand. (Inherited from DbCommand.) |
![]() | DbParameterCollection | Gets the collection of DbParameter objects. (Inherited from DbCommand.) |
![]() | DbTransaction | Gets or sets the DbTransaction within which this DbCommand object executes. (Inherited from DbCommand.) |
![]() | DesignMode | Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.) |
![]() | DesignTimeVisible | Gets or sets a value indicating whether the command object should be visible in a customized interface control. (Overrides DbCommand::DesignTimeVisible.) |
![]() | Events | Gets the list of event handlers that are attached to this Component. (Inherited from Component.) |
![]() | Parameters | Gets the OracleParameterCollection. |
![]() | Site | Gets or sets the ISite of the Component. (Inherited from Component.) |
![]() | Transaction | Gets or sets the OracleTransaction within which the OracleCommand executes. |
![]() | UpdatedRowSource | Gets or sets a value that specifies how the Update method should apply command results to the DataRow. (Overrides DbCommand::UpdatedRowSource.) |
| Name | Description | |
|---|---|---|
![]() | Cancel | Attempts to cancel the execution of an OracleCommand. (Overrides DbCommand::Cancel().) |
![]() | Clone | Creates a copy of this OracleCommand object. |
![]() | CreateDbParameter | Creates a new instance of a DbParameter object. (Inherited from DbCommand.) |
![]() | CreateObjRef | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) |
![]() | CreateParameter | Creates a new instance of an OracleParameter object. |
![]() | Dispose() | Releases all resources used by the Component. (Inherited from Component.) |
![]() | Dispose(Boolean) | Releases the unmanaged resources used by the Component and optionally releases the managed resources. (Inherited from Component.) |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | ExecuteDbDataReader | Executes the command text against the connection. (Inherited from DbCommand.) |
![]() | ExecuteNonQuery | Executes an SQL statement against the Connection and returns the number of rows affected. (Overrides DbCommand::ExecuteNonQuery().) |
![]() | ExecuteOracleNonQuery | Executes an SQL statement against the Connection and returns the number of rows affected. |
![]() | ExecuteOracleScalar | Executes the query, and returns the first column of the first row in the result set returned by the query as an Oracle-specific data type. Extra columns or rows are ignored. |
![]() | ExecuteReader() | Sends the CommandText to the Connection and builds an OracleDataReader. |
![]() | ExecuteReader(CommandBehavior) | Sends the CommandText to the Connection, and builds an OracleDataReader using one of the CommandBehavior values. |
![]() | ExecuteScalar | Executes the query, and returns the first column of the first row in the result set returned by the query as a .NET Framework data type. Extra columns or rows are ignored. (Overrides DbCommand::ExecuteScalar().) |
![]() | Finalize | Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
![]() | GetService | Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
![]() | MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) |
![]() | Prepare | Creates a prepared (or compiled) version of the command at the data source. (Overrides DbCommand::Prepare().) |
![]() | ResetCommandTimeout | Resets the CommandTimeout property to the default value. |
![]() | ToString | Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component.) |
| Name | Description | |
|---|---|---|
![]() ![]() | IDbCommand::Connection | Gets or sets the IDbConnection used by this instance of the IDbCommand. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::CreateParameter | Creates a new instance of an IDbDataParameter object. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::ExecuteReader() | Executes the CommandText against the Connection and builds an IDataReader. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::ExecuteReader(CommandBehavior) | Executes the CommandText against the Connection, and builds an IDataReader using one of the CommandBehavior values. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::Parameters | Gets the IDataParameterCollection. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::Transaction | Gets or sets the DbTransaction within which this DbCommand object executes. (Inherited from DbCommand.) |
This type is deprecated and will be removed in a future version of the .NET Framework. For more information, see Oracle and ADO.NET.
The OracleCommand class provides the following methods for executing commands against a data source:
Item | Description |
|---|---|
Executes commands that return rows. | |
Executes an SQL statement against the Connection and returns the number of rows affected. | |
Executes commands such as SQL INSERT, DELETE, UPDATE, and SET statements. | |
Retrieves a single value (for example, an aggregate value) from a database as a .NET Framework data type. | |
Retrieves a single value (for example, an aggregate value) from a database as an Oracle-specific data type. |
You can reset the CommandText property and reuse the OracleCommand object.
If execution of the command results in a fatal OracleException, the OracleConnection may close. However, the user can reopen the connection and continue.
Note |
|---|
Unlike the Command object in the other .NET Framework data providers (SQL Server, OLE DB, and ODBC), the OracleCommand object does not support a CommandTimeout property. Setting a command timeout has no effect and the value returned is always zero. |
The following example uses the ExecuteReader method of OracleCommand, along with OracleDataReader and OracleConnection, to select rows from a table.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

