Solved

Best Default "Value" for DateTime column

Posted on 2014-01-06
6
156 Views
Last Modified: 2014-01-07
Curious which is better, NULL or 1/1/1900
0
Comment
Question by:cat4larry
  • 3
  • 2
6 Comments
 
LVL 69

Accepted Solution

by:
Scott Pletcher earned 250 total points
ID: 39760179
It depends.

Do you want to automatically ignore missing dates or not?

If you do, NULL is better; if not, 1/1/1900 might be better.
0
 
LVL 16

Expert Comment

by:Surendra Nath
ID: 39760199
As per the design perspective,
it should always be NULL, no default value should be put in that place...

As you see if NULL is the default value, then the application can be programmed to ask the user or prompt the use to enter that date.
but if a default value is put in that place, then it may not, not only that NULL's are specifically designed for this purpose in the database.
0
 

Author Comment

by:cat4larry
ID: 39760200
What becomes difficult is that the table (and its data) will be used in all sorts of ways.  So I'm just looking for a general "start with this" kind of advice.  I can always modify the nature of the data later if I find it isn't working.  Understand?  So back to my original question is it better in general to leave it NULL or 1/1/1900

Hope I'm making sense.
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 16

Assisted Solution

by:Surendra Nath
Surendra Nath earned 250 total points
ID: 39760209
if that is the case, then use 1/1/1900 as this will not throw any error in the application code, where the sloppy application developers have not handled errors.
0
 

Author Comment

by:cat4larry
ID: 39760229
My thoughts as well.  Just wanted to verify with someone else.

Thanks
0
 
LVL 16

Expert Comment

by:Surendra Nath
ID: 39760502
if that answers your question, please close this by awarding the points
thanks Surendra
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction In my previous article (http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/SSIS/A_9150-Loading-XML-Using-SSIS.html) I showed you how the XML Source component can be used to load XML files into a SQL Server database, us…
Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question