Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Sql Isnull()

Posted on 2012-12-23
5
Medium Priority
?
441 Views
Last Modified: 2013-02-13
I have the following Select statement:

select CustomerID, Name,

CASE
  WHEN (CONVERT(varchar(10),(ISNULL(BuyDate, '')), 110)='01-01-1900') THEN (' ')
   ELSE (CONVERT(varchar(10),(ISNULL(BuyDate, '')), 110))
END as BuyDate

from Customers;

BuyDate --it's datetime field in the Customers table

ISNULLL(BuyDate, '')  returns 01-01-1900 if BuyDate contains NULL.

Is there BETTER WAY to re-write the below piece of my sql sttement ???

CASE
  WHEN (CONVERT(varchar(10),(ISNULL(BuyDate, '')), 110)='01-01-1900') THEN (' ')
   ELSE (CONVERT(varchar(10),(ISNULL(BuyDate, '')), 110))
END as BuyDate


Thanks
0
Comment
Question by:niceguy971
5 Comments
 
LVL 35

Assisted Solution

by:Robert Schutt
Robert Schutt earned 500 total points
ID: 38717678
not sure if it's much better but at least a bit shorter:
CASE
  WHEN BuyDate IS NULL THEN (' ')
   ELSE (CONVERT(varchar(10), BuyDate, 110))
END as BuyDate

Open in new window

0
 
LVL 39

Assisted Solution

by:Pratima Pharande
Pratima Pharande earned 500 total points
ID: 38717892
try this also

CASE
  WHEN (CONVERT(varchar(10),(ISNULL(BuyDate, '')), 110)='01-01-1900') THEN (' ')
   ELSE (CONVERT(varchar(10),BuyDate, 110))
END as BuyDate
0
 
LVL 1

Assisted Solution

by:igordevelop
igordevelop earned 500 total points
ID: 38718028
Hi,

This seems much simpler, in case you don't need the null date in string format:

select EmployeeID, FirstName, ISNULL(BuyDate, NULL)
from Customers;

Let me know if anything.

Regards,
Igor
0
 
LVL 8

Accepted Solution

by:
JustAndrei earned 500 total points
ID: 38720368
Robert_schutt's solution is correct, however, if you want even shorter solution, consider this:
ISNULL(CONVERT(varchar, BuyDate, 110), ' ') AS BuyDate
0
 

Author Closing Comment

by:niceguy971
ID: 38886773
Thanks
0

Featured Post

Veeam and MySQL: How to Perform Backup & Recovery

MySQL and the MariaDB variant are among the most used databases in Linux environments, and many critical applications support their data on them. Watch this recorded webinar to find out how Veeam Backup & Replication allows you to get consistent backups of MySQL databases.

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…
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
Video by: ITPro.TV
In this episode Don builds upon the troubleshooting techniques by demonstrating how to properly monitor a vSphere deployment to detect problems before they occur. He begins the show using tools found within the vSphere suite as ends the show demonst…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…

927 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