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Why converting empty value to datetime2 is throwing conversion error in SQL?


By : David Goulet
Date : July 30 2020, 12:00 PM
will be helpful for those in need This happens because DateTime is a non-nullable value type. 01/01/0001 00:00:00 is its default value.
DateGeneral, on the other hand, is nullable, which makes the null value in the database incompatible with what you have in C#.
code :


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DateTime2 conversion Error in a DB with no DateTime2 Columns


By : Παναγιώτης Οικονόμου
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , This answer was the answer to my question:
https://stackoverflow.com/a/4708344/16241

SQL conversion error because of datetime2


By : Anoop Padmanabhan
Date : March 29 2020, 07:55 AM
Any of those help I have a view in a SQL Server 2008 database that has a datetime2 field. I need to be able to query from that view via a linked SQL server 2005. When I run open my cursor and fetch the records I get a "Conversion failed when converting datetime from character string." error. How do I make the cursor convert the datetime2 appropriately? , try to declare cursor in following way:
code :
DECLARE db_cursor CURSOR FOR
SELECT cast([DateTime] as DateTime) FROM [LINKEDSERVER].[DATABASENAME].[dbo].[ViewName] 
  WHERE Name = 'blah'
DECLARE @time NVARCHAR(100)

DECLARE db_cursor CURSOR FOR
SELECT CAST([DateTime] as NVArCHAR(100)) FROM [LINKEDSERVER].[DATABASENAME].[dbo].[ViewName] 
  WHERE Name = 'blah'

OPEN db_cursor
FETCH NEXT FROM db_cursor INTO @time

WHILE @@FETCH_STATUS = 0
BEGIN
  Print @time
  FETCH NEXT FROM db_cursor INTO @time
END

CLOSE db_cursor
DEALLOCATE db_cursor

Linked in dotnetopenauth -> The conversion of a datetime2 error


By : kyleacker
Date : March 29 2020, 07:55 AM
hope this fix your issue I have seen this issue before using Entity Framework when I have had a DateTime database column set to not null and I did not assign it a value (I left it NULL).
Check your code and look for any DateTime properties that are marked with NotNull and ensure that you are assigning those properties values before committing your changes/saving your records.

How to identify column throwing System.Data.SqlClient.SqlException? (conversion of a datetime2 data type to a datetime d


By : user3282411
Date : March 29 2020, 07:55 AM
hop of those help? TL;DR
If you use Sql DATETIME columns, add validation to .Net DateTime properties on persisted entities to ensure values are between 1753 and 9999 prior to .SaveChanges() Otherwise, change your Sql storage to DATE or DATETIME2, depending on your precision requirements.

SaveChangesAsync Error: Conversion of DateTime2 to DateTime Out-Of-Range


By : mohammadreza
Date : March 29 2020, 07:55 AM
I wish this help you There must be other field(s) in Job that are of type DateTime that are not being set in your code. This unset property will default to DateTime.MinValue which is 1-Jan-0001. The SQL type DATETIME only supports dates with a year greater than 1752. Hence, the reason for your exception.
The easiest solution is to change the database to use DATETIME2 and not DATETIME. See also DateTime2 vs DateTime in SQL Server
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