C# winform oracle连接数据库类 和app.config 简单配置

oracle连接数据库类

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using System;  
using System.Configuration;  
using System.Data;  
using System.Data.OracleClient;  
using System.Collections;  
 
namespace ty.DAL {  
 
    /// <summary>  
    /// A helper class used to execute queries against an Oracle database  
    /// </summary>  
    public abstract class OracleHelper {  
 
 
       // OracleConnection oracleConn = new OracleConnection(ConnectionStrings);  
        // Read the connection strings from the configuration file  
       // public static readonly string ConnectionStrings = "Data Source=zxjc;User ID=tsmdlr;Password=tsmdlr;Unicode=True";  
        public static readonly string ConnectionStrings = ConfigurationSettings.AppSettings["Connstr"];  
 
        //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;  
            }  
        }  
 
        /// <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;  
        }  
 
 
        /// <summary>  
        /// 返回一个DataTable 对象  
        /// </summary>  
        /// <param name="sql">sql语句</param>  
        /// <returns></returns>  
        public static DataTable ExecuteDataTable(string sql)  
        {  
            // Create a new Oracle command  
            OracleCommand command = null;  
 
            try 
            {  
                //Create a connection  
                using (OracleConnection connection = new OracleConnection(ConnectionStrings))  
                {  
                    command = new OracleCommand(sql, connection);  
                    OracleDataAdapter adapter = new OracleDataAdapter(command);  
                    DataSet ds = new DataSet();  
                    //System.Threading.Thread.Sleep(10);  
                    adapter.Fill(ds);  
 
 
                    //if(ds.Tables.Count<1)   
                    //    return;  
                    DataTable dt = ds.Tables[0];  
                    return dt;  
 
                }  
            }  
            catch(Exception ex)  
            {  
                throw;  
            }  
              
        }  
 
 
        /// <summary>  
        /// 存储过程调用方法  
        /// </summary>  
        /// <param name="storedProcName"></param>  
        /// <param name="parameters"></param>  
        public static int RunProcedure(string storedProcName, OracleParameter[] parameters)  
        {  
            OracleConnection connection = new OracleConnection(ConnectionStrings);  
            try 
            {  
                connection.Open();  
                OracleCommand  cmd = new OracleCommand();  
                cmd.Connection = connection;  
 
                cmd.CommandText = storedProcName;//声明存储过程名  
                cmd.CommandType = CommandType.StoredProcedure;  
                foreach (OracleParameter parameter in parameters)  
                {  
                    cmd.Parameters.Add(parameter);  
                }  
               int var= cmd.ExecuteNonQuery();//执行存储过程  
               return var;  
            }  
            catch 
            {  
                throw;  
            }  
        }  
 
    }  
} 
using System;
using System.Configuration;
using System.Data;
using System.Data.OracleClient;
using System.Collections;

namespace ty.DAL {

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

       // OracleConnection oracleConn = new OracleConnection(ConnectionStrings);
        // Read the connection strings from the configuration file
       // public static readonly string ConnectionStrings = "Data Source=zxjc;User ID=tsmdlr;Password=tsmdlr;Unicode=True";
        public static readonly string ConnectionStrings = ConfigurationSettings.AppSettings["Connstr"];

        //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;
            }
        }

        /// <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;
  }

        /// <summary>
        /// 返回一个DataTable 对象
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <returns></returns>
        public static DataTable ExecuteDataTable(string sql)
        {
            // Create a new Oracle command
            OracleCommand command = null;

            try
            {
                //Create a connection
                using (OracleConnection connection = new OracleConnection(ConnectionStrings))
                {
                    command = new OracleCommand(sql, connection);
                    OracleDataAdapter adapter = new OracleDataAdapter(command);
                    DataSet ds = new DataSet();
                    //System.Threading.Thread.Sleep(10);
                    adapter.Fill(ds);

                    //if(ds.Tables.Count<1)
                    //    return;
                    DataTable dt = ds.Tables[0];
                    return dt;

                }
            }
            catch(Exception ex)
            {
                throw;
            }
           
        }

        /// <summary>
        /// 存储过程调用方法
        /// </summary>
        /// <param name="storedProcName"></param>
        /// <param name="parameters"></param>
        public static int RunProcedure(string storedProcName, OracleParameter[] parameters)
        {
            OracleConnection connection = new OracleConnection(ConnectionStrings);
            try
            {
                connection.Open();
                OracleCommand  cmd = new OracleCommand();
                cmd.Connection = connection;

                cmd.CommandText = storedProcName;//声明存储过程名
                cmd.CommandType = CommandType.StoredProcedure;
                foreach (OracleParameter parameter in parameters)
                {
                    cmd.Parameters.Add(parameter);
                }
               int var= cmd.ExecuteNonQuery();//执行存储过程
               return var;
            }
            catch
            {
                throw;
            }
        }

    }
}
 

app.config 简单配置

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<?xml version="1.0" encoding="utf-8" ?>  
<configuration>  
  <appSettings>  
    <add key="Connstr" value="Data Source=zxjc;User ID=tsmdlr;Password=tsmdlr;Unicode=True"/>  
  </appSettings>  
</configuration>