Solved

What's the differnce between xtype and xusertype in systypes

Posted on 2008-09-29
4
1,617 Views
Last Modified: 2010-04-21
What's the differnce between xtype and xusertype in systypes?
It seems that they are the same for all types except "sysname"
0
Comment
Question by:treehouse2008
  • 2
  • 2
4 Comments
 
LVL 11

Expert Comment

by:aaronakin
ID: 22597551
Here's is a description of the two from microsoft.  http://msdn.microsoft.com/en-us/library/ms175109(SQL.90).aspx
0
 

Author Comment

by:treehouse2008
ID: 22597893
I read that before.  I do not understand what's "Physical storage type" and "Extended user type". And how xtype and xusertype are used in differnt situations?
0
 
LVL 11

Accepted Solution

by:
aaronakin earned 250 total points
ID: 22600733
If you have any user-defined datatypes, they all have an underlying system type tied to them.  For instance, the user type PhoneNumber could have a system type of char(10).  In this case, the xtype value would be the id for the varchar type, and the xusertype value would be the id for the PhoneNumber type.
0
 

Author Closing Comment

by:treehouse2008
ID: 31501228
Thanks
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Use this article to create a batch file to backup a Microsoft SQL Server database to a Windows folder.  The folder can be on the local hard drive or on a network share.  This batch file will query the SQL server to get the current date & time and wi…
Slowly Changing Dimension Transformation component in data task flow is very useful for us to manage and control how data changes in SSIS.
Using examples as well as descriptions, and references to Books Online, show the different Recovery Models available in SQL Server and explain, as well as show how full, differential and transaction log backups are performed
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.

770 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