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Date: Fri, 27 Dec 2019 02:48:19 -0800 (PST)
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Subject: gnatcoll_db2ada problem "Database not supported:"
From: George J <ivanov_george@list.ru>
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Xref: reader01.eternal-september.org comp.lang.ada:57764
Date: 2019-12-27T02:48:19-08:00
List-Id: <comp.lang.ada>

Hi all!
I'm trying to create an Ada app to work with database, so i've installed gn=
atcoll-db, gnatcoll_db2ada. I have simple database created with sqlite3. I'=
ve read tutorials on the adacore (https://docs.adacore.com/gnatcoll-docs/sq=
l.html) but sorry, i can't understand one simple moment. I've got that we c=
an create the representation of the database with the Ada package view. It'=
s cool. But how can we get this? I can make this only using file as in exap=
mle:

| TABLE | customers     | customer        || The customer for the library |
| id    | AUTOINCREMENT | PK              || Auto-generated id            |
| first | TEXT          | NOT NULL        || Customers' first name        |
| last  | TEXT          | NOT NULL, INDEX || Customers' last name         |

but when i'm tring to do with simple created database:=20
gnatcoll_db2ada -dbname test.db
i'm getting :=20
Database not supported:

And my question is. What if i already have some big database and want to cr=
eate an Ada app to work with. Can i work with it in the same way? May be i =
don't know something. Or i can work with db file with connecting to him and=
 send direct SQL queries? I've never worked with databases with Ada so this=
 theme is very difficult for me now. But interesting)
Thanks!