DB2 - Problem description
| Problem IT10998 | Status: Closed |
UPDATING INFORMIX COLUMNS WITH TYPE DATETIME HOURS TO SECONDS FAILS VIA ENTITY FRAMEWORK: UNKNOWN PRIMITIVETYPEKIND TIME | |
| product: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
| Problem description: | |
You have written a .NET Entity Framework program that makes use
of the DB2 Data Server Driver to connect with an Informix IDS
instance.
The program EF model has an association with a table with the
following schema:
create table test_time_hs
(
id serial not null ,
name char(50),
creation_time datetime hour to second,
primary key (id)
);
The program retrieves one row of data from the table
test_time_hs (C# code , "db" being the name of the EF model ):
test_time_hs myData;
myData = db.test_time_hs.FirstOrDefault<test_time_hs>();
updates the value for the field "creation_time", which in the
program will appears as having .NET type "Time" :
myData.creation_time = new TimeSpan(DateTime.Now.Ticks);
and then pushes back the updates to the database calling
db.SaveChanges();
This action will raise an exception. where the last nested
exception has the description
Unknown PrimitiveTypeKind Time
and the top of the stack is:
IBM.Data.DB2.Entity.MetadataHelpers.GetDbType
IBM.Data.DB2.Entity.DmlSqlGenerator.ExpressionTranslator.CreateP
arameter
IBM.Data.DB2.Entity.DmlSqlGenerator.ExpressionTranslator.Visit
System.Data.Common.CommandTrees.DbConstantExpression.Accept
(...) | |
| Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * All Platform * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 LUW v10.5 Fixpack 7 or later. * **************************************************************** | |
| Local Fix: | |
| Solution | |
First Fixed in DB2 LUW v10.5 Fixpack 7. | |
| Workaround | |
not known / see Local fix | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 01.09.2015 08.10.2015 08.10.2015 |
| Problem solved at the following versions (IBM BugInfos) | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 10.5.0.7 |
|