Solved

Converting YYYYMMDD to MM/DD/YYYY

Posted on 2012-03-16
7
3,799 Views
Last Modified: 2012-03-16
Hi,

I have a SQL 2008 database with dates in a table stored in the format YYYYMMDD.

20041201
20040308
20040108
20040113

The above are examples of the dates in the tables.  The field is TRANDATE and the data is stored as decimal(9, 0).  I have written a SQL view to join a few tables so that we can use the view to pull data into microsoft excel with user friendly field names for analysis.  I am looking for a way to convert the dates so that they display as MM/DD/YYYY instead of the YYYYMMDD format.  I have searched ee and found the example:

Convert(VARCHAR(50),Convert(Datetime, '20110125'),101)

This successfully converts the string “20110125” to 01/25/2011.  I tried changing this to Convert(VARCHAR(50),Convert(Datetime, dbo.OESHDT.TRANDATE),101), however, I get the error message:

SQL Execution Error.

Executed SQL Statement: SELECT ……………………….
Error Source: .Net Sql Client Data Provider
Error Message: Arithmetic Overflow error converting expression to data type datetime.

I am extremely confused as to why I would get this error.  If I change the date string in the initial statement from '20110125' to any date like ‘20120316’, or with the function GetDate(), the date will be displayed correctly.  I would assume that putting the field name from the table would return the value and would work correctly.

Am I looking at this the wrong way?  Can someone please assist or show me another way?

Thanks in advance.
0
Comment
Question by:3GKID
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 53

Expert Comment

by:Huseyin KAHRAMAN
ID: 37730366
select CONVERT(varchar(12),getdate(),101)

03/16/2012
0
 
LVL 53

Expert Comment

by:Huseyin KAHRAMAN
ID: 37730375
select CONVERT(varchar(12),CONVERT(date, '20110125',100),101)

01/25/2011
0
 
LVL 40

Expert Comment

by:lcohan
ID: 37730380
What is the datatype for dbo.OESHDT.TRANDATE column and more important what junk data you may have in it? My guess is that this is the reason for your convert to fail. Strings or int in that column that would represent dates outside the 1900 to 2049 SQL/Windos platform knows.
0
Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

 
LVL 53

Expert Comment

by:Huseyin KAHRAMAN
ID: 37730384
and make sure you have valid data in the column for all rows...
0
 
LVL 6

Accepted Solution

by:
effes earned 500 total points
ID: 37730392
The problem is with this part of your statement:
Convert(Datetime, dbo.OESHDT.TRANDATE)

Open in new window

This tries to convert the number 20110125 and not the string '20110125' to datetime. That is not the same. You have to convert the value in TRANDATE to a string and then convert the result of that to datetime:
Convert(VARCHAR(50),Convert(Datetime, Convert(nvarchar, dbo.OESHDT.TRANDATE)),101)

Open in new window

0
 
LVL 53

Expert Comment

by:Huseyin KAHRAMAN
ID: 37730398
to find invalid data:

SET LANGUAGE us_english;
SET DATEFORMAT ymd;

SELECT * from yourtable
WHERE ISDATE(TRANDATE) = -1
0
 

Author Comment

by:3GKID
ID: 37730629
Hi.

Effes, you hit the nail on the head!  It took me quite a while to digest the statement you provided after trying it out.  Thanks a lot.

HainKurt, I tried the statement in the table and it produced no results.

Thanks a lot for all your help.
0

Featured Post

PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

Question has a verified solution.

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

Suggested Solutions

In this article I will describe the Backup & Restore method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial

710 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