[
Lists Home |
Date Index |
Thread Index
]
- From: johns@syscore.com (John F. Schlesinger)
- To: 'rsanford' <rsanford@nolimitsystems.com>, xml-dev@lists.xml.org
- Date: Fri, 25 Aug 2000 17:46:38 -0400
Well, the problem isn't whether the query engine needs to know the data
type, it is whether I need to know the data type to formulate the query - or
maybe I'm barking up the wrong tree?
Yours,
John F Schlesinger
SysCore Solutions
212 619 5200 x 219
917 886 5895 Mobile
-----Original Message-----
From: rsanford [mailto:rsanford@nolimitsystems.com]
Sent: Friday, August 25, 2000 3:48 PM
To: xml-dev@lists.xml.org
Subject: RE: XML and LDAP: Common APIs?
for single values the query engine wouldn't need to
know what the data type was but what about range
queries. for example, how would you search for
records where a date is between 2 march 98 and 4
august 99?
rjsjr
> -----Original Message-----
> From: John F. Schlesinger [mailto:johns@syscore.com]
> Sent: Friday, August 25, 2000 11:25 AM
> To: 'KenNorth'; xml-dev@lists.xml.org
> Subject: RE: XML and LDAP: Common APIs?
>
>
> Ken wrote:
> "How do you know whether a query should match a binary '101' or a decimal
> '101' if you don't use data types?"
>
> I don't think I need to know that to formulate a query. The
> system that does
> the matching will have to cast both the things being matched and my match
> string to some common form, but that's a different problem. In many cases
> everything is cast to a string - then my "101" matches ether a
> decimal "101"
> or a binary "101". If I meant a decimal "101" and it matched to a binary
> "101" by mistake, then I was querying the wrong field.
>
> Yours,
> John F Schlesinger
> SysCore Solutions
> 212 619 5200 x 219
> 917 886 5895 Mobile
>
> -----Original Message-----
> From: KenNorth [mailto:KenNorth@email.msn.com]
> Sent: Thursday, August 24, 2000 4:37 PM
> To: xml-dev@lists.xml.org
> Subject: Re: XML and LDAP: Common APIs?
>
>
>
>
> > Francis wrote:
> > "...Xpath (unlike XML-Schema)doesn't understand basic types like dates"
> >
> > I don't need data types to query.
>
> Okay, let's say you have a value of '101'.
>
> How do you know whether a query should match a binary '101' or a decimal
> '101' if you don't use data types?
>
>
>
>
>
>
|
