NET implementation provides the Get Non Unicode Bytes method that returns the string value as a byte array using the client character set formatting, and the Get Unicode Bytes method that returns the string value as a byte array in Unicode format. NET adds support for Oracle XML data types with the Oracle Xml Type and Oracle Xml Stream classes.
The Oracle Xml Type class lets you store and change XML data natively in an Oracle database.
These classes provide methods, properties, and operators to create, compare, convert, extract, and manipulate Timestamp data.
The Oracle Xml Stream class represents XML data stored in an Oracle Xml Type object as a read-only stream. NET Oracle Command class supports XML operations through methods that are discussed in the Command section later in this article. NET Oracle Connection provides a Connection Timeout property that specifies how long the Open method will wait for a pooled connection before terminating the request. The Oracle Db Type and Db Type properties for the Oracle Parameter are linked—setting one causes the other to be inferred to an appropriate type. The Oracle Command class provides a Bind By Name property—set this property to true to bind parameters by name instead of by position.The supported connection string attributes differ between the providers. NET Connection String Attributes The number of connections that are closed when an excessive number of established connections in the pool are not used. The Microsoft provider does not let you specify the connection timeout using a connection string attribute or through the Oracle Connection. NET Oracle Connection provides the Open With New Password method that allows you open a connection with a new password after the password in the connection string has expired. The Microsoft provider always binds parameters by name. NET provides the Add Rowid property that, when set to true, automatically returns the ROWID as part of the result set. Close(); It is important to note that array binding can lead to partial failures. The classes that support the LOB data types in each data provider are shown in the following table: Table 1. The Microsoft provider requires Oracle client version 8.1.7 or above. NET is freely available from the Oracle Technology Network (OTN) at Oracle LOBs are used to store large-character or binary data such as text documents and images including the BFILE data type that used to store LOBs outside of the database using the file system.Here is a snippet from it: // Set the command Oracle Command cmd = new Oracle Command( "update multimedia_tab set story = :1 where thekey = 1"); cmd.
Execute Non Query(); string Query3 = " DECLARE " "str varchar2(32767); " " BEGIN " " str := '" base64Image Representation Logo "'; " " update map_general_settings set value=str where DESC_AR='LOGO_IMG' ; END; "; command. The Oracle Boolean structure does not map to an Oracle data type but rather is included as a helper. An appendix follows that examines and compares each data provider type detailing differences between the public constructors, fields, methods, properties, properties, and operators between types in the providers; aspects of the data provider types that are similar are not discussed. NET Framework Data Provider for Oracle, consult MSDN. NET provider, consult the documentation installed with the provider. NET supports all native Oracle data types in the Oracle. Other differences in data type support between the providers are discussed in the following subsections: The Microsoft provider has an Oracle Boolean structure that represents the result of comparison operations between Oracle data types. How to insert CLOB field in Oracle using C# Is it possible to do this through a prepared query? Execute Non Query(); // this line throws an exception Edit: My answer below applies for typical use of Clobs where the size is greater than 32k (what they were designed for). Query: I have also found the following description, but I would really want to be able to keep the prepared query. (54 printed pages) Introduction Data Types Connection Command Command Builder Data Reader Retrieving Data with REF CURSORs Safe Mapping Array Binding PL/SQL Associative Arrays Transactions Transaction Application Failover Information Messages and Errors Globalization Microsoft Visual Studio . Once retrieved, an Oracle Ref Cursor can be used to create an Oracle Data Reader or to fill a Data Set using an Oracle Data Adapter—this is discussed in the Retrieving Data section later in this article.