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Status Future consideration
Workspace Db2
Components Db2 Connect and Drivers
Created by Guest
Created on Oct 8, 2021

RELATED IDEAS

IBM Data Server .Net Provider Support For Informix Types DATETIME

Hi, we are in the process of moving from .Net Framework to .Net Core.
Currently using the Net5.IBM.Data.Db2 driver connecting through the DRDA protocol.
For DATETIME data types we are having trouble searching.

A simple query is throwing the exception, example:

SELECT column FROM table (column is DATETIME YEAR TO MINUTE, SECOND OR FRACTION)

We are currently working around working with conversion
from DATETIME to "String" as follows:

SELECT TO_CHAR(column, '%Y-%m-%d %H:%M') AS column_convert FROM table

Version Informix: IBM Informix Dynamic Server Version 11.70.FC8W1GE

Error:
Specified argument was out of the range of valid values.

InnerException:
at IBM.Data.DB2Types.DB2TimeStamp..ctor(Int32 year, Int32 month, Int32 day, Int32 hour, Int32 minute, Int32 second, Int64 fraction, Int32 precision, Boolean bTException, Boolean WithTruncate)
at IBM.Data.Db2.DB2DataBuffer.TimeStampReadBufferData_2_DB2TimeStamp(Byte* DataBuffer, Int32 DDlen, Int32 numFractionDigits)
at IBM.Data.Db2.DB2DataBuffer.ReadTimestamp(DB2DataWrapper dataWrapper, DDEntry ddEntry)
at IBM.Data.Db2.DB2DataBuffer.GetRowData(DB2DataWrapperCollection dataWrappers, DB2DataDescriptor outputDD)
at IBM.Data.Db2.DB2DataReader.Read()

Exception:
ERROR [58005] [IBM][DB2.NET] SQL0902 An unexpected exception has occurred in Process: 3144 Thread 14 AppDomain: Name:testhost
There are no context policies. Function: DB2DataReader.Read()
CallStack: at System.Environment.get_StackTrace()
at IBM.Data.Db2.DB2ConnPool.HandleUnknownErrors(String strFncMsg, Exception exception, Boolean bThrow)
at IBM.Data.Db2.DB2DataReader.Read()
at NetCoreTests.DB2CoreToInformix.SimpleTestDatatype() in D:\tmp\bruno.santos\source\repos\NetCore\NetCoreTests\DB2CoreToInformix.cs:line 43
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
at NUnit.Framework.Internal.Reflect.InvokeMethod(MethodInfo method, Object fixture, Object[] args)
at NUnit.Framework.Internal.MethodWrapper.Invoke(Object fixture, Object[] args)
at NUnit.Framework.Internal.Commands.TestMethodCommand.InvokeTestMethod(TestExecutionContext context)
at NUnit.Framework.Internal.Commands.TestMethodCommand.RunTestMethod(TestExecutionContext context)
at NUnit.Framework.Internal.Commands.TestMethodCommand.Execute(TestExecutionContext context)
at NUnit.Framework.Internal.Commands.BeforeAndAfterTestCommand.<>c__DisplayClass1_0.<Execute>b__0()
at NUnit.Framework.Internal.Commands.BeforeAndAfterTestCommand.RunTestMethodInThreadAbortSafeZone(TestExecutionContext context, Action action)
at NUnit.Framework.Internal.Commands.BeforeAndAfterTestCommand.Execute(TestExecutionContext context)
at NUnit.Framework.Internal.Execution.SimpleWorkItem.<>c__DisplayClass4_0.<PerformWork>b__0()
at NUnit.Framework.Internal.ContextUtils.<>c__DisplayClass1_0`1.<DoIsolated>b__0(Object _)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at NUnit.Framework.Internal.ContextUtils.DoIsolated(ContextCallback callback, Object state)
at NUnit.Framework.Internal.ContextUtils.DoIsolated[T](Func`1 func)
at NUnit.Framework.Internal.Execution.SimpleWorkItem.PerformWork()
at NUnit.Framework.Internal.Execution.WorkItem.RunOnCurrentThread()
at NUnit.Framework.Internal.Execution.WorkItem.Execute()
at NUnit.Framework.Internal.Execution.SimpleWorkItemDispatcher.Dispatch(WorkItem work)
at NUnit.Framework.Internal.Execution.CompositeWorkItem.RunChildren()
at NUnit.Framework.Internal.Execution.CompositeWorkItem.PerformWork()
at NUnit.Framework.Internal.Execution.WorkItem.RunOnCurrentThread()
at NUnit.Framework.Internal.Execution.WorkItem.Execute()
at NUnit.Framework.Internal.Execution.SimpleWorkItemDispatcher.Dispatch(WorkItem work)
at NUnit.Framework.Internal.Execution.CompositeWorkItem.RunChildren()
at NUnit.Framework.Internal.Execution.CompositeWorkItem.PerformWork()
at NUnit.Framework.Internal.Execution.WorkItem.RunOnCurrentThread()
at NUnit.Framework.Internal.Execution.WorkItem.Execute()
at NUnit.Framework.Internal.Execution.SimpleWorkItemDispatcher.Dispatch(WorkItem work)
at NUnit.Framework.Internal.Execution.CompositeWorkItem.RunChildren()
at NUnit.Framework.Internal.Execution.CompositeWorkItem.PerformWork()
at NUnit.Framework.Internal.Execution.WorkItem.RunOnCurrentThread()
at NUnit.Framework.Internal.Execution.WorkItem.Execute()
at NUnit.Framework.Internal.Execution.SimpleWorkItemDispatcher.RunnerThreadProc()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart() InnerException Message: Specified argument was out of the range of valid values. Check InnerException property for more detail. SQLSTATE=58005
Needed By Not sure -- Just thought it was cool
  • Guest
    Reply
    |     Feb 10, 2023

    It would be nice if IBM fixed the driver problem.

  • Guest
    Reply
    |     Feb 10, 2023

    We were in need of this solution. Thanks for sharing with us.

    You are awesome!!!

  • Guest
    Reply
    |     Feb 10, 2023

    The solution mentioned below helped me a lot.

    Thanks for the support.

    You guys are awesome.

  • Guest
    Reply
    |     Feb 8, 2023

    Great Comment and thank you for the suport!

    I've check in server configuration and realy was set with GL_DATETIME='%Y-%m-%d %H:%M:%S',
    i executed in another informix instance without the configuration and the driver operated sucssefully.


    Would be a houge advance if the driver checkout if a value possed a datetime fraction and validate the result of
    datetime field.

  • Guest
    Reply
    |     Feb 1, 2023

    For this error you may look at the global variables configurations on server.


    On exception says "at IBM.Data.DB2Types.DB2TimeStamp..ctor(Int32 year, Int32 month, Int32 day, Int32 hour, Int32 minute, Int32 second, Int64 fraction, Int32 precision, Boolean bTException, Boolean WithTruncate)"


    The method expect a parameter that is the range of the fraction timestamp. Maybe you DBTime or GL_DATETIME is not set with fraction and size of fraction(.%Fn) on string.


    Maybe for the driver db2 develpers could consider insert a condtion where fraction is null or without size of fraction, input a maxim value for the db usied.

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