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From "Zsolt" <zkoppanyl...@intland.com>
Subject RE: Ibatis crashing MySQL when I use DATE_FORMAT
Date Mon, 11 Sep 2006 06:00:00 GMT
Try mysql-4.1.19, it won't crash.





From: Clinton Begin [mailto:clinton.begin@gmail.com] 
Sent: Sunday, September 10, 2006 4:52 PM
To: user-java@ibatis.apache.org
Subject: Re: Ibatis crashing MySQL when I use DATE_FORMAT


I agree with Brandon on this one....especially because it happens with
iBATIS 1.x and 2.x, which are about as different as iBATIS vs. JDBC.  

I'd be very surprised if this turned out to be iBATIS.  It's most likely the
JDBC driver.  Think about it this way though:  _no_ client should be able to
crash a server.  Period.  ;-) 


On 9/9/06, Brandon Goodin <brandon.goodin@gmail.com> wrote:

I would encourage you to first try it with pure jdbc and run the exact sql
statement that is executed. IBatis does nothing magical in regards to the
database. It simply calls standard JDBC.



On 9/9/06, vc_ace <vc_ace@yahoo.com> wrote:

This is very strange but it appears as though Ibatis is crashing my MySql
instance when I use the DATE_FORMAT function in SQL.  Please note: it only
crashes when I use a format string that resolves to text like %a 
(Abbreviated weekday name) , %b (Abbreviated month name).  The problem
doesn't seem to exist for format strings that return numeric data.

<statement id="getEmailList"  resultClass=" com.vc.domain.Email">
                SELECT emailTrn.id, DATE_FORMAT(email.entryDate, '%a. %b %D
- %h %i %p'
) as entryDateS, FROM email, emailTrn WHERE emailTrn.userId = 1 AND
emailTrn.emailId = email.id

MySql: 4.1.21
Java: 1.5.0_08
Ibatis: 2.1.7
Connector/J: 3.1.13
Running using Struts

Please note: I had the same problem when I was using Ibatis 1.x.  I upgraded
to see if that resolved the problem.

1.      My application can hit the database
2.      I can hit all of my other SQL statements without problem or errors
3.      I'm not sure when this problem started but it does not happen when I
MySql 4.1.18. Unfortunately not an option with my hosting provider.  So I'm
thinking there is a problem with Ibatis and this version of MySql. 

Any help or insight would be appreciated.  I'd provide my other Ibatis
configuration files but they don't appear to be the problem.  I take the
DATE_FORMAT out and the problem goes away and data is properly returned to 
my jsp.


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