求教如何使用ASP.NET（C#）编程实现将一个WORD文档存储在oracle数据库中

[F15Eagle]

求教如何使用ASP.NET（C#）编程实现将一个WORD文档存储在oracle数据库中

最好能提供关键代码，同时欢迎大家积极讨论

谢谢

[北京的雾霾天]

对oracle数据库不熟,
帮你顶一下吧:)

[hertcloud]

http://topic.csdn.net/t/20060320/09/4625431.html
http://www.cnblogs.com/yistudio/archive/2005/05/20/159440.aspx

应该和上面 操作sql是一样的 流程..
对于oracle 也只是说 数据操作 使用using System.Data.OracleClient;

如何 使用 楼主 可以 参考Petshop4 中的OracleHelper类

[hertcloud]

//OracleHelper类
using System;
using System.Configuration;
using System.Data;
using System.Data.OracleClient;
using System.Collections;

namespace PetShop.DBUtility {

/// <summary>
/// A helper class used to execute queries against an Oracle database
/// </summary>
public abstract class OracleHelper {

// Read the connection strings from the configuration file
public static readonly string ConnectionStringLocalTransaction = ConfigurationManager.ConnectionStrings["OraConnString1"].ConnectionString;
public static readonly string ConnectionStringInventoryDistributedTransaction = ConfigurationManager.ConnectionStrings["OraConnString2"].ConnectionString;
public static readonly string ConnectionStringOrderDistributedTransaction = ConfigurationManager.ConnectionStrings["OraConnString3"].ConnectionString;
public static readonly string ConnectionStringProfile = ConfigurationManager.ConnectionStrings["OraProfileConnString"].ConnectionString;
public static readonly string ConnectionStringMembership = ConfigurationManager.ConnectionStrings["OraMembershipConnString"].ConnectionString;

//Create a hashtable for the parameter cached
private static Hashtable parmCache = Hashtable.Synchronized(new Hashtable());

/// <summary>
/// Execute a database query which does not include a select
/// </summary>
/// <param name="connString">Connection string to database</param>
/// <param name="cmdType">Command type either stored procedure or SQL</param>
/// <param name="cmdText">Acutall SQL Command</param>
/// <param name="commandParameters">Parameters to bind to the command</param>
/// <returns></returns>
public static int ExecuteNonQuery(string connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters) {
// Create a new Oracle command
OracleCommand cmd = new OracleCommand();

//Create a connection
using (OracleConnection connection = new OracleConnection(connectionString)) {

//Prepare the command
PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters);

//Execute the command
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
return val;
}
}

/// <summary>
/// Execute an OracleCommand (that returns no resultset) against an existing database transaction
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
/// </remarks>
/// <param name="trans">an existing database transaction</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
/// <returns>an int representing the number of rows affected by the command</returns>
public static int ExecuteNonQuery(OracleTransaction trans, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters) {
OracleCommand cmd = new OracleCommand();
PrepareCommand(cmd, trans.Connection, trans, cmdType, cmdText, commandParameters);
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
return val;
}

/// <summary>
/// Execute an OracleCommand (that returns no resultset) against an existing database connection
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
/// </remarks>
/// <param name="conn">an existing database connection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
/// <returns>an int representing the number of rows affected by the command</returns>
public static int ExecuteNonQuery(OracleConnection connection, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters) {

OracleCommand cmd = new OracleCommand();

PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters);
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
return val;
}

/// <summary>
/// Execute a select query that will return a result set
/// </summary>
/// <param name="connString">Connection string</param>
//// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
/// <returns></returns>
public static OracleDataReader ExecuteReader(string connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters) {

//Create the command and connection
OracleCommand cmd = new OracleCommand();
OracleConnection conn = new OracleConnection(connectionString);

try {
//Prepare the command to execute
PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);

//Execute the query, stating that the connection should close when the resulting datareader has been read
OracleDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
cmd.Parameters.Clear();
return rdr;

}
catch {

//If an error occurs close the connection as the reader will not be used and we expect it to close the connection
conn.Close();
throw;
}
}

[hertcloud]

/// <summary>
/// Execute an OracleCommand that returns the first column of the first record against the database specified in the connection string
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// Object obj = ExecuteScalar(connString, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
/// </remarks>
/// <param name="connectionString">a valid connection string for a SqlConnection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
/// <returns>An object that should be converted to the expected type using Convert.To{Type}</returns>
public static object ExecuteScalar(string connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters) {
OracleCommand cmd = new OracleCommand();

using (OracleConnection conn = new OracleConnection(connectionString)) {
PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
object val = cmd.ExecuteScalar();
cmd.Parameters.Clear();
return val;
}
}

/// <summary>
/// Execute a OracleCommand (that returns a 1x1 resultset) against the specified SqlTransaction
/// using the provided parameters.
/// </summary>
/// <param name="transaction">A valid SqlTransaction</param>
/// <param name="commandType">The CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">The stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">An array of OracleParamters used to execute the command</param>
/// <returns>An object containing the value in the 1x1 resultset generated by the command</returns>
public static object ExecuteScalar(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters) {
if(transaction == null)
throw new ArgumentNullException("transaction");
if(transaction != null && transaction.Connection == null)
throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");

// Create a command and prepare it for execution
OracleCommand cmd = new OracleCommand();

PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters);

// Execute the command & return the results
object retval = cmd.ExecuteScalar();

// Detach the SqlParameters from the command object, so they can be used again
cmd.Parameters.Clear();
return retval;
}

/// <summary>
/// Execute an OracleCommand that returns the first column of the first record against an existing database connection
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// Object obj = ExecuteScalar(conn, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
/// </remarks>
/// <param name="conn">an existing database connection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
/// <returns>An object that should be converted to the expected type using Convert.To{Type}</returns>
public static object ExecuteScalar(OracleConnection connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters) {
OracleCommand cmd = new OracleCommand();

PrepareCommand(cmd, connectionString, null, cmdType, cmdText, commandParameters);
object val = cmd.ExecuteScalar();
cmd.Parameters.Clear();
return val;
}

/// <summary>
/// Add a set of parameters to the cached
/// </summary>
/// <param name="cacheKey">Key value to look up the parameters</param>
/// <param name="commandParameters">Actual parameters to cached</param>
public static void CacheParameters(string cacheKey, params OracleParameter[] commandParameters) {
parmCache[cacheKey] = commandParameters;
}

/// <summary>
/// Fetch parameters from the cache
/// </summary>
/// <param name="cacheKey">Key to look up the parameters</param>
/// <returns></returns>
public static OracleParameter[] GetCachedParameters(string cacheKey) {
OracleParameter[] cachedParms = (OracleParameter[])parmCache[cacheKey];

if (cachedParms == null)
return null;

// If the parameters are in the cache
OracleParameter[] clonedParms = new OracleParameter[cachedParms.Length];

// return a copy of the parameters
for (int i = 0, j = cachedParms.Length; i < j; i++)
clonedParms[i] = (OracleParameter)((ICloneable)cachedParms[i]).Clone();

return clonedParms;
}

/// <summary>
/// Internal function to prepare a command for execution by the database
/// </summary>
/// <param name="cmd">Existing command object</param>
/// <param name="conn">Database connection object</param>
/// <param name="trans">Optional transaction object</param>
/// <param name="cmdType">Command type, e.g. stored procedure</param>
/// <param name="cmdText">Command test</param>
/// <param name="commandParameters">Parameters for the command</param>
private static void PrepareCommand(OracleCommand cmd, OracleConnection conn, OracleTransaction trans, CommandType cmdType, string cmdText, OracleParameter[] commandParameters) {

//Open the connection if required
if (conn.State != ConnectionState.Open)
conn.Open();

//Set up the command
cmd.Connection = conn;
cmd.CommandText = cmdText;
cmd.CommandType = cmdType;

//Bind it to the transaction if it exists
if (trans != null)
cmd.Transaction = trans;

// Bind the parameters passed in
if (commandParameters != null) {
foreach (OracleParameter parm in commandParameters)
cmd.Parameters.Add(parm);
}
}

/// <summary>
/// Converter to use boolean data type with Oracle
/// </summary>
/// <param name="value">Value to convert</param>
/// <returns></returns>
public static string OraBit(bool value) {
if(value)
return "Y";
else
return "N";
}

/// <summary>
/// Converter to use boolean data type with Oracle
/// </summary>
/// <param name="value">Value to convert</param>
/// <returns></returns>
public static bool OraBool(string value) {
if(value.Equals("Y"))
return true;
else
return false;
}
}
}

[可爱的排骨]

把DOC用ZIP类压缩了再以进制数据类型存进数据库.
楼主先查查 .NET的ZIP压缩方法.再查查数据库存图片的方法吧

[syeerzy]

Oracle 有存大数据的字段类型不？像SqlServer的Image和Text那样，把文档直接以2进制流的形式写进去可以吧？

[F15Eagle]

Oracle与SqlServer的差别怎么这么大呢???

参考chanet(牧师)在2006-8-26某帖中的发言,觉得比较有用,同时谢谢大家积极参与

如下内容为转载:----------------------

SQL> CREATE TABLE IMAGE_LOB (
2 T_ID VARCHAR2 (5) NOT NULL,
3 T_IMAGE BLOB NOT NULL
4 );

表已创建。

SQL> CREATE OR REPLACE DIRECTORY IMAGES AS 'C:\Inetpub\wwwroot';

目录已创建。

SQL> CREATE OR REPLACE PROCEDURE IMG_INSERT (
2 TID VARCHAR2,
3 FILENAME VARCHAR2) AS
4 F_LOB BFILE;
5 B_LOB BLOB;
6 BEGIN
7 INSERT INTO IMAGE_LOB (T_ID, T_IMAGE) VALUES (TID,
8 EMPTY_BLOB ()) RETURN T_IMAGE INTO B_LOB;
9 F_LOB:= BFILENAME ('IMAGES', FILENAME);
10 DBMS_LOB.FILEOPEN (F_LOB, DBMS_LOB.FILE_READONLY);
11 DBMS_LOB.LOADFROMFILE (B_LOB, F_LOB,
12 DBMS_LOB.GETLENGTH (F_LOB));
13 DBMS_LOB.FILECLOSE (F_LOB);
14 COMMIT;
15 END;
16 /

过程已创建。

SQL> BEGIN
2 IMG_INSERT('1','win2000.gif');
3 END;
4 /

PL/SQL 过程已成功完成。

SQL> select length(t_image) from image_lob where t_id='1';

LENGTH(T_IMAGE)
---------------
4670

SQL>