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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Question on bounded / unbounded strings
Date: Thu, 22 Sep 2016 19:18:10 +0200
Date: 2016-09-22T19:18:10+02:00	[thread overview]
Message-ID: <ns13oq$1rp9$1@gioia.aioe.org> (raw)
In-Reply-To: ns0p0a$fuq$1@dont-email.me

On 2016-09-22 16:14, G.B. wrote:
> On 22.09.16 14:05, Dmitry A. Kazakov wrote:
>> On 22/09/2016 12:58, G.B. wrote:
>>> On 22.09.16 11:53, Dmitry A. Kazakov wrote:
>>>> If you do DB you use DB data types.
>>>
>>> (...)
>>>
>>> So, user defined types may be beneficial in a typical
>>> Ada environment when using a capable DBMS.
>>
>> Sure they are, all DB interfacing types are user-defined Ada types.
>
> Do Ada programmers normally store objects of user defined
> types of their own in DBMS?

Sometimes, existing bindings do not encourage this.

> Objects that the DBMS considers atomic,
> to become one attribute value of some tuple (column value in some row).
> Say, of a private type that exports "=" to the DBMS. These would
> be types other than those binding-layer defined types like SQL_INT
> etc, which, I take it, you meant by "DB data types".

SQL_INT is not observable. The only language type here is SQL_C_INT. If 
you have a higher-level abstraction you can have Age or House_Number. 
Now bounded string, if any, would be equivalent to SQL_INT, a 
non-existent entity.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de


  reply	other threads:[~2016-09-22 17:18 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-13  8:46 Question on bounded / unbounded strings Arie van Wingerden
2016-09-13  9:04 ` Dmitry A. Kazakov
2016-09-22  2:10   ` John Smith
2016-09-22  7:24     ` Dmitry A. Kazakov
2016-09-22  9:01       ` J-P. Rosen
2016-09-22  9:53         ` Dmitry A. Kazakov
2016-09-22 10:58           ` G.B.
2016-09-22 12:05             ` Dmitry A. Kazakov
2016-09-22 14:14               ` G.B.
2016-09-22 17:18                 ` Dmitry A. Kazakov [this message]
2016-09-22 11:08           ` J-P. Rosen
2016-09-22 12:05             ` Dmitry A. Kazakov
2016-09-22 13:18           ` Maciej Sobczak
2016-09-22 13:52             ` Dmitry A. Kazakov
2016-09-22 14:51               ` Maciej Sobczak
2016-09-22 17:13                 ` Dmitry A. Kazakov
2016-09-23  5:50                   ` Maciej Sobczak
2016-09-23  6:36                     ` Simon Wright
2016-09-23  7:48                       ` Dmitry A. Kazakov
2016-09-28 20:55                     ` Randy Brukardt
2016-09-23 23:58       ` John Smith
2016-09-24  7:52         ` Dmitry A. Kazakov
2016-09-24 16:25           ` John Smith
2016-09-24 17:44             ` Dmitry A. Kazakov
2016-09-24 18:33               ` John Smith
2016-09-24 18:37               ` John Smith
2016-09-24 18:59               ` John Smith
2016-09-25  8:50                 ` Dmitry A. Kazakov
2016-09-25 23:35                   ` brbarkstrom
2016-09-26  7:28                     ` Dmitry A. Kazakov
2016-09-26 12:39                       ` brbarkstrom
2016-09-28 21:09             ` Randy Brukardt
2016-09-30  7:59               ` Björn Lundin
2016-09-13  9:35 ` gautier_niouzes
2016-09-13 10:41 ` Alejandro R. Mosteo
2016-09-13 17:41 ` Jeffrey R. Carter
2016-09-13 17:59 ` Björn Lundin
2016-09-14 11:23 ` Arie van Wingerden
2016-09-14 12:26   ` Arie van Wingerden
2016-09-14 12:28   ` Arie van Wingerden
2016-09-14 12:57 ` Arie van Wingerden
2016-09-14 19:39   ` Jeffrey R. Carter
2016-09-17 16:35     ` Arie van Wingerden
2016-09-16 14:43 ` Olivier Henley
2016-09-17 16:35   ` Arie van Wingerden
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