使用方法：在使用前先加入ManagedDataAccessDLL文件方可使用
添加方法：右键项目。点击管理NuGet程序包，点击浏览，在输入框内输入ManagedDataAccess，再点击安装即可
OracleDBHelper代码如下(Copy直接用)
特点：根据用户传入的参数类型来识别存储中对应的参数数据类型
/// <summary>
///基於.net（ 向下兼容4.0）開發 OracleDBHelper工具類
///<para>作者： 害羞的青蛙</para>
///<para>時間： 2019-12-6</para>
/// </summary>
public class OracleDBHelper
{
/// <summary>
/// 執行SQL語句返回DataTable
/// </summary>
/// <param name="SQL">SQL語句</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
/// <returns></returns>
public DataTable GetDataTableBySQL(string SQL, string DBUrl)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
// 获取与数据库的连接对象並且绑定连接字符串
Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection (DBUrl);
conn.Open();//打開資源
//获取数据库操作对象
Oracle.ManagedDataAccess.Client.OracleCommand cmd = conn.CreateCommand();
try
{
cmd.CommandText = SQL;
Oracle.ManagedDataAccess.Client.OracleDataAdapter adapter = new Oracle.ManagedDataAccess.Client.OracleDataAdapter(cmd);
DataTable dataTable = new DataTable();
adapter.Fill(dataTable);
dataTable.TableName = "數據集";
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
return dataTable;
}
catch (Exception ex)
{
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
throw ex;
}
}
/// <summary>
/// 執行非查詢的SQL語句
/// </summary>
/// <param name="SQL">SQL語句</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
/// <returns></returns>
public int GetNonQueryBySQL(string SQL, string DBUrl)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
// 获取与数据库的连接对象並且绑定连接字符串
Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection (DBUrl);
conn.Open();//打開資源
//获取数据库操作对象
Oracle.ManagedDataAccess.Client.OracleCommand cmd = conn.CreateCommand();
try
{
cmd.CommandText = SQL;
int num = cmd.ExecuteNonQuery();
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
return num;
}
catch (Exception ex)
{
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
throw ex;
}
}
/// <summary>
/// 執行多條SQL語句，實現數據庫事務。
/// </summary>
/// <param name="SQLStringList">多條SQL語句</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
public int GetNonQueryByManySQL(ArrayList SQLStringList, string DBUrl)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
using (Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection (DBUrl))
{
conn.Open();
Oracle.ManagedDataAccess.Client.OracleCommand cmd = new Oracle.ManagedDataAccess.Client.OracleCommand();
cmd.Connection = conn;
Oracle.ManagedDataAccess.Client.OracleTransaction tx = conn.BeginTransaction();
cmd.Transaction = tx;
try
{
int num = 0;
for (int i = 0; i < SQLStringList.Count; i++)
{
string SQL = SQLStringList[i].ToString();//獲取SQL語句
if (SQL.Trim().Length > 1)
{
cmd.CommandText = SQL;
num = cmd.ExecuteNonQuery();
}
tx.Commit();//提交事務
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
}
return num;//返回執行結果數量
}
catch (Oracle.ManagedDataAccess.Client.OracleException E)
{
tx.Rollback();//事務回滾
throw new Exception(E.Message);
}
}
}
/// <summary>
/// 調用存儲返回單個游標結果集（最後一個位置必須為游標，位置不能顛倒）
/// <para>obj使用方法：new{ v_data=value, v_data1=value1,out_cursor=""}</para>
/// <para>注意：obj中v_data為存儲參數名稱，value為對應的值， out_cursor為游標不需要輸入值</para>
/// </summary>
/// <param name="storageName">存儲名稱</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
/// <param name="obj">存儲參數對象</param>
/// <returns></returns>
public DataTable GetDataTableByStorageName(string storageName, string DBUrl, object obj)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
// 获取与数据库的连接对象並且绑定连接字符串
Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection (DBUrl);
conn.Open();//打開資源
//获取数据库操作对象
Oracle.ManagedDataAccess.Client.OracleCommand cmd = conn.CreateCommand();
try
{
cmd.CommandText = storageName;//存儲名稱
cmd.CommandType = CommandType.StoredProcedure;
PropertyInfo[] properties = obj.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);//獲取object中的字段名和值
for (int i = 0; i < properties.Length; i++)
{
if (i == (properties.Length - 1))
{//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else
{//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
}
}
DataTable dataTable = new DataTable();
Oracle.ManagedDataAccess.Client.OracleDataAdapter oda = new Oracle.ManagedDataAccess.Client.OracleDataAdapter(cmd);
oda.Fill(dataTable);
dataTable.TableName = "數據集";
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
return dataTable;
}
catch (Exception ex)
{
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
throw ex;
}
}
/// <summary>
/// 調用存儲返回String字符串信息（最後一個位置必須為String類型字符，位置不能顛倒）
/// <para>obj使用方法：new{ v_data=value, v_data1=value1,out_string=""}</para>
/// <para>注意：obj中v_data為存儲參數名稱，value為對應的值，out_string為輸出參數不需要輸入值</para>
/// </summary>
/// <param name="storageName"></param>
/// <param name="DBUrl"></param>
/// <param name="obj"></param>
/// <returns></returns>
public string GetStringDataByStorageName(string storageName, string DBUrl, object obj)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection (DBUrl);
conn.Open();
//获取数据库操作对象
Oracle.ManagedDataAccess.Client.OracleCommand cmd = conn.CreateCommand();
try
{
cmd.CommandText = storageName;//存儲名稱
cmd.CommandType = CommandType.StoredProcedure;
PropertyInfo[] properties = obj.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);//獲取object中的字段名和值
for (int i = 0; i < properties.Length; i++)
{
if (i == (properties.Length - 1))
{ //設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.Varchar2, short.MaxValue).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else
{//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
}
}
cmd.ExecuteNonQuery();
string message = cmd.Parameters[properties[properties.Length - 1].Name].Value.ToString();//獲取返回的值
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
return message;
}
catch (Exception ex)
{
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
throw ex;
}
}
/// <summary>
/// 調用存儲返回String字符串信息和DataTable數據表格（最後兩個位置必須為返回參數，一個為輸出字符串另一個為游標，位置不能顛倒）
/// <para>obj使用方法：new{ v_data=value, v_data1=value1,out_string="",out_cursor=""}</para>
/// <para>注意：obj中v_data為存儲參數名稱，value為對應的值，out_string為輸出參數不需要輸入值， out_cursor為游標不需要輸入值</para>
/// </summary>
/// <param name="storageName">存儲名稱</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
/// <param name="obj">存儲參數對象</param>
/// <param name="dataTable">返回結果集</param>
/// <returns></returns>
public string GetStringAndDataTableByStorageName(string storageName, string DBUrl, object obj, out DataTable dataTable)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
// 获取与数据库的连接对象並且绑定连接字符串
Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection (DBUrl);
conn.Open();//打開資源
//获取数据库操作对象
Oracle.ManagedDataAccess.Client.OracleCommand cmd = conn.CreateCommand();
try
{
cmd.CommandText = storageName;//存儲名稱
cmd.CommandType = CommandType.StoredProcedure;
PropertyInfo[] properties = obj.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);//獲取object中的字段名和值
for (int i = 0; i < properties.Length; i++)
{
if (i == (properties.Length - 2))
{//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.Varchar2, short.MaxValue).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else if (i == (properties.Length - 1))
{//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else
{//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
}
}
DataTable dt = new DataTable();
dt.TableName = "數據集";
Oracle.ManagedDataAccess.Client.OracleDataAdapter oda = new Oracle.ManagedDataAccess.Client.OracleDataAdapter(cmd);
oda.Fill(dt);
dataTable = dt;//返回數據結果集
string message = cmd.Parameters[properties[properties.Length - 2].Name].Value.ToString();//獲取輸出的字符串
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
return message;
}
catch (Exception ex)
{
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
throw ex;
}
}
/// <summary>
/// 調用存儲返回String字符串信息和DataTable數據表格（最後兩個位置必須為返回參數，一個為輸出字符串另一個為游標，位置不能顛倒）
/// <para>obj使用方法：new{ v_data=value, v_data1=value1,out_string="",out_cursor=""}</para>
/// <para>注意：obj中v_data為存儲參數名稱，value為對應的值，out_string為輸出參數不需要輸入值， out_cursor為游標不需要輸入值</para>
/// <para>outType為true輸出參數在前，為flase輸出參數在後；cursorType為true游標在輸出字符串前，為flase游標輸出字符串在後</para>
/// </summary>
/// <param name="storageName">存儲名稱</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
/// <param name="outType">輸出狀態</param>
/// <param name="cursorType">游標狀態</param>
/// <param name="obj">存儲參數對象</param>
/// <param name="dataTable">返回結果集</param>
/// <returns></returns>
public string GetStringAndDataTableByStorageName(string storageName, bool outType, bool cursorType, string DBUrl, object obj, out DataTable dataTable)
{
if (DBUrl.ToString().Trim() == "" || DBUrl == null) throw new Exception("數據庫鏈接地址不能為空");
// 获取与数据库的连接对象並且绑定连接字符串
Oracle.ManagedDataAccess.Client.OracleConnection conn = new Oracle.ManagedDataAccess.Client.OracleConnection(DBUrl);
conn.Open();//打開資源
//获取数据库操作对象
Oracle.ManagedDataAccess.Client.OracleCommand cmd = conn.CreateCommand();
try
{
cmd.CommandText = storageName;//存儲名稱
cmd.CommandType = CommandType.StoredProcedure;
PropertyInfo[] properties = obj.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);//獲取object中的字段名和值
for (int i = 0; i < properties.Length; i++)
{
if (outType)
{
if (cursorType)
{
switch (i)
{
case 0:
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
break;
case 1:
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.Varchar2, short.MaxValue).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
break;
default:
//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
break;
}
}
else
{
switch (i)
{
case 0:
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.Varchar2, short.MaxValue).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
break;
case 1:
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
break;
default:
//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
break;
}
}
}
else
{
if (cursorType)
{
if (i== (properties.Length - 2)) {
//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else if (i == (properties.Length - 1)) {
//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.Varchar2, short.MaxValue).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else {
//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
}
}
else
{
if (i == (properties.Length - 2))
{//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.Varchar2, short.MaxValue).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else if (i == (properties.Length - 1))
{//設定輸出的類型和值
cmd.Parameters.Add(properties[i].Name, Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor).Direction = ParameterDirection.Output;
cmd.Parameters[properties[i].Name].Value = DBNull.Value;//賦值
}
else
{//設定輸入的類型和值
cmd.Parameters.Add(properties[i].Name, GetOracleDbType(properties[i], obj)).Direction = ParameterDirection.Input;
cmd.Parameters[properties[i].Name].Value = properties[i].GetValue(obj, null);//賦值
}
}
}
}
DataTable dt = new DataTable();
dt.TableName = "數據集";
Oracle.ManagedDataAccess.Client.OracleDataAdapter oda = new Oracle.ManagedDataAccess.Client.OracleDataAdapter(cmd);
oda.Fill(dt);
dataTable = dt;//返回數據結果集
string message = null;
if (outType)
{
if (cursorType)
{
message=cmd.Parameters[properties[1].Name].Value.ToString();//獲取輸出的字符串
}
else
{
message=cmd.Parameters[properties[2].Name].Value.ToString();//獲取輸出的字符串
}
}
else
{
if (cursorType)
{
message=cmd.Parameters[properties[properties.Length - 2].Name].Value.ToString();//獲取輸出的字符串
}
else
{
message = cmd.Parameters[properties[properties.Length - 1].Name].Value.ToString();//獲取輸出的字符串
}
}
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
return message;
}
catch (Exception ex)
{
cmd.Dispose();//釋放資源
conn.Dispose();//釋放資源
conn.Close();//關閉
throw ex;
}
}
/// <summary>
/// 以現有表格數據批量添加數據
/// </summary>
/// <param name="dt">數據表格</param>
/// <param name="FormName">數據表名</param>
/// <param name="DBUrl">數據庫鏈接地址</param>
/// <returns></returns>
public bool AddInBatchesToDataTable(DataTable dt, string FormName, string DBUrl)
{
try
{
if (FormName.ToString().Trim() == "") throw new Exception("數據表名不能为空");
System.Diagnostics.Debug.WriteLine("----------------------開始執行--------------------------");
System.Diagnostics.Debug.WriteLine("執行表明：" + dt.TableName + "--------------------------");
long star = Convert.ToInt64(System.DateTime.Now.ToString("yyyyMMddHHmmssfff"));
Oracle.DataAccess.Client.OracleConnection conn = new Oracle.DataAccess.Client.OracleConnection (DBUrl);
OracleBulkCopy bulkCopy = new OracleBulkCopy(DBUrl, OracleBulkCopyOptions.UseInternalTransaction);
bulkCopy.BatchSize = 100000;
bulkCopy.BulkCopyTimeout = 260;
bulkCopy.DestinationTableName = FormName; //服务器上目标表的名称
bulkCopy.BatchSize = dt.Rows.Count; //每一批次中的行数
try
{
conn.Open();
if (dt != null && dt.Rows.Count != 0)
bulkCopy.WriteToServer(dt); //将提供的数据源中的所有行复制到目标表中
}
catch (Exception ex)
{
throw ex;
}
finally
{
conn.Close();
if (bulkCopy != null)
bulkCopy.Close();
}
long end = Convert.ToInt64(System.DateTime.Now.ToString("yyyyMMddHHmmssfff"));
System.Diagnostics.Debug.WriteLine("共添加：" + dt.Rows.Count + "條數數據----耗時：" + ((end - star) / 10000) + "." + ((end - star) % 10000) + "秒");
System.Diagnostics.Debug.WriteLine("----------------------執行結束--------------------------");
return true;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 將輸入參數的類型與Oracle中的參數類型轉化一致
/// </summary>
/// <param name="propertyInfo">屬性特征</param>
/// <param name="obj">對象</param>
/// <returns></returns>
private Oracle.ManagedDataAccess.Client.OracleDbType GetOracleDbType(PropertyInfo propertyInfo, object obj)
{
try
{
Oracle.ManagedDataAccess.Client.OracleDbType oracleDbType = new Oracle.ManagedDataAccess.Client.OracleDbType();
switch (propertyInfo.GetValue(obj, null).GetType().Name)
{
case "String":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.NVarchar2;
break;
case "Int32":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Int32;
break;
case "Int64":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Int64;
break;
case "DateTime":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Date;
break;
case "Blob":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Blob;
break;
case "Double":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Double;
break;
case "Decimal":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Decimal;
break;
case "Long":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Long;
break;
case "Boolean":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.Boolean;
break;
case "BinaryFloat":
oracleDbType = Oracle.ManagedDataAccess.Client.OracleDbType.BinaryFloat;
break;
}
return oracleDbType;
}
catch (Exception ex)
{
throw ex;
}
}
}