Re: [boost] SQL client library ?

Subject: Re: [boost] SQL client library ?
From: Alp Mestan (alp_at_[hidden])
Date: 2009-09-16 14:39:16

Looks fine to me !

How will you handle backends for many of the RDBMS ? (if you will)

On Wed, Sep 16, 2009 at 8:12 PM, Jean-Louis Leroy <jl_at_[hidden]> wrote:

> Alp Mestan wrote:
>
>> You'll then introduce a "condition" DSEL to generate a predicate used by
>> the
>> where without creating like(), between() functions etc ?
>>
>
> Like this :
>
>        select((t.id)).from(t).where(t.name.like("pattern"))
>
>        select((t1.id, t2.id)).from((t1, t2, p))
>        .where((t1.income + t2.income).between(20, 40)
>                && p.husband == t1.id && p.wife == t2.id)
>
> Hmm. The double parentheses are needed because the argument separator role
> of the comma has priority over its role as an operator. It may become
> disturbing to have a mixture of cases where double parentheses are mandatory
> and cases where they are not...
>
>
> J-L
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-- 
Alp Mestan
http://blog.mestan.fr/
http://alp.developpez.com/