dont know about best practice, but to ensure date portability I dont use
date fields in the DB, I use varchar fields and put ISO dates in them e.g.

20051027T161420

Then if needed, I convert to proper dates once the value is out of the DB.
Since I know the string will alway be in the same format, I can use string
functions e.g. mid() to pull the data out and create a date -
createdate(left(mydate,4),mid(mydate,5,2) e.t.c.


-----Original Message-----
From: wolf2k5 [mailto:[EMAIL PROTECTED]
Sent: 27 October 2005 15:56
To: CF-Talk
Subject: Re: portable SQL queries with date and time values


On 8/17/05, wolf2k5 <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am trying to figure out what is the best way to write SQL queries
> including date and time values that will work across several Oracle
> Database installations (different versions and different regional
> settings).
>
> So far I am using some code similar to this:
>
>
> <cfset myMask = "MM/DD/YYYY">
>
> <!--- just for testing, the real value is not the current date --->
> <cfset myDate = DateFormat(Now(),myMask)>
>
> <cfquery name="myQuery" datasource="myDatasource">
> SELECT *
> FROM myTable
> WHERE TRUNC(myDate) < TO_DATE(<cfqueryparam value="#myDate#"
> cfsqltype="CF_SQL_VARCHAR">,<cfqueryparam value="#myMask#"
> cfsqltype="CF_SQL_VARCHAR">)
> </cfquery>
>
>
> It works fine and AFAIK it should be pretty portable to other Oracle
> Database installations.
>
> But I just figured out that simpler code also seems to work fine:
>
>
> <cfset myDate = DateFormat(Now(),myMask)>
>
> <cfquery name="myQuery" datasource="myDatasource">
> SELECT *
> FROM myTable
> WHERE TRUNC(myDate) > <cfqueryparam value="#myDate#"
cfsqltype="CF_SQL_DATE">
> </cfquery>
>
>
> I'd like to use it since it's more compact ...
> Will it work fine with all Oracle Database installations?
>
> Also, I found some posts recommending to use the CreateODBCDate function.
> Is that a better way? Why?
>
> Thanks.

Hi there,

I didn't find a good reply to my previous questions yet.

What is the best practice here in your opinion?

Thanks a lot.



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