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Abrar
User
Location:
Joined on:
13-Nov-2009 21:48:02
Posted:
26 posts
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LLBLGen Pro V2.5, VSTS 2009, .NET Framework 3.5 sp1, C#, Oracle 10g
Hi,
When I try to fetch data from a Oracle view:
adapter.FetchEntityCollection(blenderCollection, bucket, 0);
I get an error..
Message: "OCI-22053:Overflow error"
Source: "System.Date.OracleClient"
Stack Trace:
at System.Data.OracleClient.OracleException.Check(OciErrorHandle errorHandle, Int32 rc)
at System.Data.OracleClient.OracleNumber.ToDecimal(OciErrorHandle errorHandle, Byte[] value)
at System.Data.OracleClient.OracleColumn.GetDecimal(NativeBuffer_RowBuffer buffer)
at System.Data.OracleClient.OracleColumn.GetValue(NativeBuffer_RowBuffer buffer)
at System.Data.OracleClient.OracleDataReader.GetValues(Object[] values)
at SD.LLBLGen.Pro.ORMSupportClasses.DataAccessAdapterBase.ExecuteMultiRowRetrievalQuery(IRetrievalQuery queryToExecute, IEntityFactory2 entityFactory, IEntityCollection2 collectionToFill, IFieldPersistenceInfo[] fieldsPersistenceInfo, Boolean allowDuplicates, IEntityFields2 fieldsUsedForQuery)
at SD.LLBLGen.Pro.ORMSupportClasses.DataAccessAdapterBase.FetchEntityCollectionInternal(IEntityCollection2 collectionToFill, IRelationPredicateBucket& filterBucket, Int32 maxNumberOfItemsToReturn, ISortExpression sortClauses, ExcludeIncludeFieldsList excludedIncludedFields, Int32 pageNumber, Int32 pageSize)
at SD.LLBLGen.Pro.ORMSupportClasses.DataAccessAdapterBase.FetchEntityCollection(IEntityCollection2 collectionToFill, IRelationPredicateBucket filterBucket, Int32 maxNumberOfItemsToReturn, ISortExpression sortClauses, IPrefetchPath2 prefetchPath, ExcludeIncludeFieldsList excludedIncludedFields, Int32 pageNumber, Int32 pageSize)
at SD.LLBLGen.Pro.ORMSupportClasses.DataAccessAdapterBase.FetchEntityCollection(IEntityCollection2 collectionToFill, IRelationPredicateBucket filterBucket, Int32 maxNumberOfItemsToReturn)
at RMSYSBillingSvc.Common.ProcessTrades.getRMSYSTrades1() in C:\CNEProjects\RetailGasBilling\RMSYS Line Item Interface\Source\RMSYSBillingSvc\Common\ProcessTrades.cs:line 149
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MTrinder
User
Location:
London by day, Milton Keynes by night.
Joined on:
08-Oct-2008 17:55:47
Posted:
1461 posts
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The error is being raised by the oracle client, not LLBLGen - can you confirm if you get the same error running the same query just thought ADO.NET, without using LLBLGen ?
Looks like you may have a value in an Oracle decimal field which is too large for a .NET decimal field - is this a possiblity ?
Matt
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Otis
LLBLGen Pro Team
Location:
The Hague, The Netherlands
Joined on:
17-Aug-2003 18:00:36
Posted:
37248 posts
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Please look into overriding DataAccessAdapterBase.HandleValueReadErrors. Please check the runtime lib reference manual for details on this method.
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Abrar
User
Location:
Joined on:
13-Nov-2009 21:48:02
Posted:
26 posts
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I tried it by your advise using ADO.NET and its working fine. I dont know why it is not working by using LLBLGen. It was working fine last week and it crashed suddenly. I dont know why. If it is a Oracle Decimal field problem then why it is working with ADO.NET?
Thanks,
Abrar
| MTrinder wrote: |
The error is being raised by the oracle client, not LLBLGen - can you confirm if you get the same error running the same query just thought ADO.NET, without using LLBLGen ?
Looks like you may have a value in an Oracle decimal field which is too large for a .NET decimal field - is this a possiblity ?
Matt
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Walaa
Support Team
Location:
Joined on:
21-Aug-2005 16:03:48
Posted:
14432 posts
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OracleDataReader.GetValues tries to convert numeric values from OracleNumber to System.Decimal which has a smaller range and hence the risk of overflow.
| Otis wrote: |
| Please look into overriding DataAccessAdapterBase.HandleValueReadErrors. Please check the runtime lib reference manual for details on this method. |
Please try the above mentioned suggestion.
btw, which ODP.NET version are you using?
| Quote: |
| If it is a Oracle Decimal field problem then why it is working with ADO.NET? |
Were the numbers returned in a decimal .NET type?
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Abrar
User
Location:
Joined on:
13-Nov-2009 21:48:02
Posted:
26 posts
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It is fixed.
Actually Matt was right.
We had a value in an Oracle decimal field which was too large and we fixed it by truncating it to 4, trun(#,4) and it worked.
Thanks Matt/Otis/Waala.
I appreciate your help.
| Walaa wrote: |
OracleDataReader.GetValues tries to convert numeric values from OracleNumber to System.Decimal which has a smaller range and hence the risk of overflow.
| Otis wrote: |
| Please look into overriding DataAccessAdapterBase.HandleValueReadErrors. Please check the runtime lib reference manual for details on this method. |
Please try the above mentioned suggestion.
btw, which ODP.NET version are you using?
| Quote: |
| If it is a Oracle Decimal field problem then why it is working with ADO.NET? |
Were the numbers returned in a decimal .NET type? |
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