ORA-01403: 未找到数据 ORA-06512: 在第 1 行尝试使用 ODP.NET 运行 存储过程
ORA-01403: no data found ORA-06512: at line 1 when trying to run a stored proc using ODP.NET
我正在构建一个界面，该界面将 运行 通过我的 .NET Winforms 应用程序从 Oracle 数据库存储过程。我能够成功连接到 Oracle 数据库，并且可以成功地使用 ODP.NET API 检索所有存储过程的列表以及我选择的任何存储过程的所有参数。
当我尝试 运行 存储过程时存在问题。当我尝试执行并且 returns Oracle 错误告诉我没有记录时它中断了，但是当我 运行 来自 sql 开发人员的存储过程时，它 returns 正是我正在寻找。这是存储过程：
create or replace procedure sp_get_emp_info
(
empid in INTEGER,
m_UserName out VARCHAR2,
m_Email out VARCHAR2,
m_IsActive out INTEGER
) as
begin
SELECT
UserName,
Email,
IsActive
INTO
m_UserName,
m_Email,
m_IsActive
FROM
MICHAELTABLE
WHERE ID = empid;
end sp_get_emp_info;
这是一个测试 class 我写这篇文章只是为了尝试用 C# 阅读：
using Oracle.ManagedDataAccess.Client;
using System;
namespace OracleTester
{
class Program
{
static void Main(string[] args)
{
OracleConnection conn = new OracleConnection();
conn.ConnectionString = "User Id=apps;Password=apps;Data Source=(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = Orchid64)(PORT = 1521))(CONNECT_DATA = (SERVICE_NAME = MVP)));";
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.DarkYellow;
//string procs = "SELECT object_name FROM dba_objects WHERE object_type = 'PROCEDURE' AND owner = 'APPS'";
//OracleCommand cmd = new OracleCommand(procs, conn);
//cmd.CommandType = System.Data.CommandType.Text;
//cmd.Connection.Open();
//OracleDataReader reader = cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
//int i = 1;
//while (reader.Read())
//{
// Console.WriteLine(i + ". " +reader.GetString(0));
// i++;
//}
OracleCommand comm = new OracleCommand();
comm.CommandText = "SP_GET_EMP_INFO";
comm.CommandType = System.Data.CommandType.StoredProcedure;
comm.Connection = conn;
OracleParameter user = new OracleParameter("m_UserName", OracleDbType.Varchar2, 25);
user.Direction = System.Data.ParameterDirection.Output;
OracleParameter email = new OracleParameter("m_Email", OracleDbType.Varchar2, 50);
email.Direction = System.Data.ParameterDirection.Output;
OracleParameter active = new OracleParameter("m_IsActive", OracleDbType.Double, 38);
active.Direction = System.Data.ParameterDirection.Output;
comm.Parameters.Add(user);
comm.Parameters.Add(email);
comm.Parameters.Add(active);
OracleParameter empID = new OracleParameter("empid", OracleDbType.Double, 38);
empID.Direction = System.Data.ParameterDirection.Input;
empID.SourceColumn = "empid";
empID.Value = 1;
comm.Parameters.Add(empID);
comm.Connection.Open();
OracleDataReader rdr = comm.ExecuteReader();
while (rdr.Read())
{
Console.WriteLine(rdr["m_UserName"].ToString());
}
Console.WriteLine("Server Version: " + conn.ServerVersion);
conn.Dispose();
Console.ReadLine();
}
}
}
当我尝试 运行 时，这是我收到的异常：
Oracle.ManagedDataAccess.Client.OracleException was unhandled
DataSource=""
ErrorCode=-2147467259
HResult=-2147467259
IsRecoverable=false
Message=ORA-01403: no data found
ORA-06512: at "APPS.SP_GET_EMP_INFO", line 9
ORA-06512: at line 1
Number=1403
Procedure=""
Source=Oracle Data Provider for .NET, Managed Driver
StackTrace:
at OracleInternal.ServiceObjects.OracleCommandImpl.VerifyExecution(OracleConnectionImpl connectionImpl, Int32& cursorId, Boolean bThrowArrayBindRelatedErrors, OracleException& exceptionForArrayBindDML, Boolean& hasMoreRowsInDB, Boolean bFirstIterationDone)
at OracleInternal.ServiceObjects.OracleCommandImpl.ExecuteReader(String commandText, OracleParameterCollection paramColl, CommandType commandType, OracleConnectionImpl connectionImpl, OracleDataReaderImpl& rdrImpl, Int32 longFetchSize, Int64 clientInitialLOBFS, OracleDependencyImpl orclDependencyImpl, Int64[] scnForExecution, Int64[]& scnFromExecution, OracleParameterCollection& bindByPositionParamColl, Boolean& bBindParamPresent, Int64& internalInitialLOBFS, OracleException& exceptionForArrayBindDML, Boolean isDescribeOnly, Boolean isFromEF)
at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader(Boolean requery, Boolean fillRequest, CommandBehavior behavior)
at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader()
at OracleTester.Program.Main(String[] args) in C:\TestProjects\OracleTester\OracleTester\Program.cs:line 54
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
任何帮助将不胜感激！！
By default, ODP.NET parameters for OracleCommand.CommandType = Text commands are bound by position. The OracleCommand class provides a BindByName property—set this property to true to bind parameters by name instead of by position.
您正在创建命名参数，但它们实际上是按位置添加的，这意味着您有效地为 m_IsActive 提供了一个值（尽管它是一个 OUT 参数）并留下 empid null，就程序而言。
您可以设置 comm.BindByName=true 正如 @b_levitt 在评论中指出的那样。或者，如果您重新排序参数分配以匹配形式参数顺序，它将选择正确的值：
OracleParameter empID = new OracleParameter("empid", OracleDbType.Double, 38);
empID.Direction = System.Data.ParameterDirection.Input;
empID.SourceColumn = "empid";
empID.Value = 1;
comm.Parameters.Add(empID);
comm.Parameters.Add(user);
comm.Parameters.Add(email);
comm.Parameters.Add(active);
comm.Connection.Open();
OracleDataReader rdr = comm.ExecuteReader();
当 CommandType 属性 设置为 StoredProcedure 时，documentation 似乎不太清楚 return 值将包含什么，如果您重新调用函数；但是对于过程调用，没有关联的结果集，因此这可能是空的。遍历它不会找到任何东西：
while (rdr.Read())
{
Console.WriteLine(rdr["m_UserName"].ToString());
}
相反，您可以直接引用 OUT 参数的值：
Console.WriteLine(user.value);
我正在构建一个界面，该界面将 运行 通过我的 .NET Winforms 应用程序从 Oracle 数据库存储过程。我能够成功连接到 Oracle 数据库，并且可以成功地使用 ODP.NET API 检索所有存储过程的列表以及我选择的任何存储过程的所有参数。
当我尝试 运行 存储过程时存在问题。当我尝试执行并且 returns Oracle 错误告诉我没有记录时它中断了，但是当我 运行 来自 sql 开发人员的存储过程时，它 returns 正是我正在寻找。这是存储过程：
create or replace procedure sp_get_emp_info
(
empid in INTEGER,
m_UserName out VARCHAR2,
m_Email out VARCHAR2,
m_IsActive out INTEGER
) as
begin
SELECT
UserName,
Email,
IsActive
INTO
m_UserName,
m_Email,
m_IsActive
FROM
MICHAELTABLE
WHERE ID = empid;
end sp_get_emp_info;
这是一个测试 class 我写这篇文章只是为了尝试用 C# 阅读：
using Oracle.ManagedDataAccess.Client;
using System;
namespace OracleTester
{
class Program
{
static void Main(string[] args)
{
OracleConnection conn = new OracleConnection();
conn.ConnectionString = "User Id=apps;Password=apps;Data Source=(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = Orchid64)(PORT = 1521))(CONNECT_DATA = (SERVICE_NAME = MVP)));";
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.DarkYellow;
//string procs = "SELECT object_name FROM dba_objects WHERE object_type = 'PROCEDURE' AND owner = 'APPS'";
//OracleCommand cmd = new OracleCommand(procs, conn);
//cmd.CommandType = System.Data.CommandType.Text;
//cmd.Connection.Open();
//OracleDataReader reader = cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
//int i = 1;
//while (reader.Read())
//{
// Console.WriteLine(i + ". " +reader.GetString(0));
// i++;
//}
OracleCommand comm = new OracleCommand();
comm.CommandText = "SP_GET_EMP_INFO";
comm.CommandType = System.Data.CommandType.StoredProcedure;
comm.Connection = conn;
OracleParameter user = new OracleParameter("m_UserName", OracleDbType.Varchar2, 25);
user.Direction = System.Data.ParameterDirection.Output;
OracleParameter email = new OracleParameter("m_Email", OracleDbType.Varchar2, 50);
email.Direction = System.Data.ParameterDirection.Output;
OracleParameter active = new OracleParameter("m_IsActive", OracleDbType.Double, 38);
active.Direction = System.Data.ParameterDirection.Output;
comm.Parameters.Add(user);
comm.Parameters.Add(email);
comm.Parameters.Add(active);
OracleParameter empID = new OracleParameter("empid", OracleDbType.Double, 38);
empID.Direction = System.Data.ParameterDirection.Input;
empID.SourceColumn = "empid";
empID.Value = 1;
comm.Parameters.Add(empID);
comm.Connection.Open();
OracleDataReader rdr = comm.ExecuteReader();
while (rdr.Read())
{
Console.WriteLine(rdr["m_UserName"].ToString());
}
Console.WriteLine("Server Version: " + conn.ServerVersion);
conn.Dispose();
Console.ReadLine();
}
}
}
当我尝试 运行 时，这是我收到的异常：
Oracle.ManagedDataAccess.Client.OracleException was unhandled
DataSource=""
ErrorCode=-2147467259
HResult=-2147467259
IsRecoverable=false
Message=ORA-01403: no data found
ORA-06512: at "APPS.SP_GET_EMP_INFO", line 9
ORA-06512: at line 1
Number=1403
Procedure=""
Source=Oracle Data Provider for .NET, Managed Driver
StackTrace:
at OracleInternal.ServiceObjects.OracleCommandImpl.VerifyExecution(OracleConnectionImpl connectionImpl, Int32& cursorId, Boolean bThrowArrayBindRelatedErrors, OracleException& exceptionForArrayBindDML, Boolean& hasMoreRowsInDB, Boolean bFirstIterationDone)
at OracleInternal.ServiceObjects.OracleCommandImpl.ExecuteReader(String commandText, OracleParameterCollection paramColl, CommandType commandType, OracleConnectionImpl connectionImpl, OracleDataReaderImpl& rdrImpl, Int32 longFetchSize, Int64 clientInitialLOBFS, OracleDependencyImpl orclDependencyImpl, Int64[] scnForExecution, Int64[]& scnFromExecution, OracleParameterCollection& bindByPositionParamColl, Boolean& bBindParamPresent, Int64& internalInitialLOBFS, OracleException& exceptionForArrayBindDML, Boolean isDescribeOnly, Boolean isFromEF)
at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader(Boolean requery, Boolean fillRequest, CommandBehavior behavior)
at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader()
at OracleTester.Program.Main(String[] args) in C:\TestProjects\OracleTester\OracleTester\Program.cs:line 54
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
任何帮助将不胜感激！！
By default, ODP.NET parameters for OracleCommand.CommandType = Text commands are bound by position. The OracleCommand class provides a BindByName property—set this property to true to bind parameters by name instead of by position.
您正在创建命名参数，但它们实际上是按位置添加的，这意味着您有效地为 m_IsActive 提供了一个值（尽管它是一个 OUT 参数）并留下 empid null，就程序而言。
您可以设置 comm.BindByName=true 正如 @b_levitt 在评论中指出的那样。或者，如果您重新排序参数分配以匹配形式参数顺序，它将选择正确的值：
OracleParameter empID = new OracleParameter("empid", OracleDbType.Double, 38);
empID.Direction = System.Data.ParameterDirection.Input;
empID.SourceColumn = "empid";
empID.Value = 1;
comm.Parameters.Add(empID);
comm.Parameters.Add(user);
comm.Parameters.Add(email);
comm.Parameters.Add(active);
comm.Connection.Open();
OracleDataReader rdr = comm.ExecuteReader();
当 CommandType 属性 设置为 StoredProcedure 时，documentation 似乎不太清楚 return 值将包含什么，如果您重新调用函数；但是对于过程调用，没有关联的结果集，因此这可能是空的。遍历它不会找到任何东西：
while (rdr.Read())
{
Console.WriteLine(rdr["m_UserName"].ToString());
}
相反，您可以直接引用 OUT 参数的值：
Console.WriteLine(user.value);