Question

How can I Insert/Update datetime into SQL Server 2005 datetime column in Database from my C# application code?

Asked by: robbersrow

First of all, here is the architecture I am using:
--SQL Server 2005 database (production), 2008 database (development)
--C# (Silverlight) code on client/application side
--Entity Framework (Model that wraps database objects)
--ADO.NET Data Services (connect Entity Framework to Client commands to execute on DB)

In my development database (SQL Server 2008), everything is working fine when I insert a new DateTime into the one of my datetime columns in the DB.  This datetime is generated from the C# client side code (ie. DateTime.Now statement).  My Entity Framework model maps the C# DateTime to the Database datetime type.

However, when I try to run the Insert against my production database (SQL Server 2005), I get an error response that says:  "The version of SQL Server in use does not support datatype 'datetime2'."  But I know that I am not using 'datetime2' anywhere in my C# code or Entity Framework mapping or SQL Server DB's.  So I don't know why it is giving me this error response.  Does anyone have any idea what might be going on here?

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Asked On
2008-10-27 at 08:52:52ID23850917
Tags

SQL Server 2005, C#, Silverlight, ADO.NET Data Services, Entity Framework

Topics

SQL Server 2008

,

.NET

,

WPF and Silverlight

Participating Experts
1
Points
500
Comments
6

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Answers

 

by: BrandonGalderisiPosted on 2008-10-27 at 08:56:16ID: 22813826

Can you post the code where you are declaring your datetime datatype in your C# code as well as the procedure code where you are executing it against.  I'm thinking somehow it thinks it's a date data type which is new to SQL 2008 but not in SQL 2005 and lower.

 

by: robbersrowPosted on 2008-10-27 at 09:06:06ID: 22813940

COSProxy.COSEntities proxy = new COSProxy.COSEntities(new Uri("COSDataService.svc", UriKind.Relative));

COSProxy.Session s = new COSProxy.Session();

proxy.AddObject("Session", s);

DateTime tempDate = DateTime.Now;

s.StartTime = new DateTime(tempDate.Year, tempDate.Month, tempDate.Day, tempDate.Hour, tempDate.Minute, tempDate.Second, 0);

s.RefreshTime = new DateTime(tempDate.Year, tempDate.Month, tempDate.Day, tempDate.Hour, tempDate.Minute, tempDate.Second, 0);

// Now Save to database.

proxy.BeginSaveChanges(SaveChangesOptions.None, (asyncResult) =>
{
    proxy.EndSaveChanges(asyncResult);
},
null);

// Now it returns an error here, saying:  "The version of SQL Server in use does not support datatype 'datetime2'."

// My SQL Server 2005 DB and 2008 DB are both using "datetime" data type for the StartTime and RefreshTime mappings.  In other words, the database "datetime" data type corresponds to a C# "DateTime" object in the way they are mapped in the Entity Framework.  I believe the Entity Framework takes care of any procedure code necessary in the mapping between C# objects and database datatypes.

 

by: robbersrowPosted on 2008-10-27 at 09:26:12ID: 22814139

Also, you had mentioned above:  "somehow it thinks it's a date data type which is new to SQL 2008 but not in SQL 2005 and lower."

But the error response I am getting indicates that it my be thinking it's a 'datetime2' data type (not a date data type).  The 'datetime2' data type is also new to SQL Server 2008.

 

by: BrandonGalderisiPosted on 2008-10-27 at 09:37:27ID: 22814224

Same thing applies in that it is an unsupported datatype for sql 2005.

 

by: robbersrowPosted on 2008-10-27 at 10:40:53ID: 22814826

I realize that datetime2 data type is unsupported for SQL Server 2005.  But nowhere in my code, databases, or Entity Framework do I make any sort of reference to "datetime2" data type.  So I have no idea why this error would be occurring.  All my definitions, mappings, DB columns, etc. are set up to use the basic supported "datetime" data type, that is available in SQL 2005 and 2008.

 

by: BrandonGalderisiPosted on 2008-10-27 at 11:30:37ID: 22815338

I'm not very familiar with .NET but I would imagine that it build your DB references based upon the SQL 2008 instance.  Had you pointed it to 2005 to begin with it would have never thought it could use datetime2.

I think it would be best to get more advice for this from the .NET side.  In order to get some attention to this, since people may not want to jump in now that there are 6 comments, click the request attention link at the top and it will send a question alert to the .NET, SQL Server 2005 and WPF and Silverlight zone subscribers.

20120131-EE-VQP-002

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