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| "mickael_remond" |
 Posted: Fri Mar 26, 1999 2:56 pm |
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I have two questions concerning Erlang and databases :
- About Mnesia :
Is there a way to use several attributes as one key in a Mnesia table ?
- About SqlErlang :
SqlErlang has been written to interface Erlang with Oracle. Does someone
tried to modify this library to modify it to run with other RDBMS ?
And I will finish with a general questions about Erlang and databases :
What are the plans with Erlang and databases ? Will it smoothly include the
RDBMS library ? Will Erlang integrate interfaces to other RDBMS ?
Thank you in advance for your answers.
Mickael Remond
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| hakan at erix.ericsson.se |
| Posted: Fri Mar 26, 1999 3:10 pm |
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On Fri, 26 Mar 1999 mickael_remond_at_vuitton.com wrote:
mickael> Date: Fri, 26 Mar 1999 15:43:54 +0100
mickael> From: mickael_remond_at_vuitton.com
mickael> To: erlang-questions_at_erlang.org
mickael> Subject: Database questions
mickael>
mickael> I have two questions concerning Erlang and databases :
mickael>
mickael> - About Mnesia :
mickael> Is there a way to use several attributes as one key in a Mnesia table ?
No, but the key kan be an arbritary complex Erlang term.
You can for example let a record or tuple to constitute a structured key.
mickael> - About SqlErlang :
mickael> SqlErlang has been written to interface Erlang with Oracle. Does someone
mickael> tried to modify this library to modify it to run with other RDBMS ?
mickael>
mickael> And I will finish with a general questions about Erlang and databases :
mickael> What are the plans with Erlang and databases ? Will it smoothly include the
mickael> RDBMS library ? Will Erlang integrate interfaces to other RDBMS ?
In the new OTP R5 release there is an Erlang binding to ODBC. With
this you will be able to interface a wide range of relational DBMS's.
Best Regards
H |
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| mattias at erix.ericsson. |
| Posted: Fri Mar 26, 1999 4:31 pm |
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Hakan Mattsson wrote:
>
> On Fri, 26 Mar 1999 mickael_remond_at_vuitton.com wrote:
>
> mickael> Date: Fri, 26 Mar 1999 15:43:54 +0100
> mickael> From: mickael_remond_at_vuitton.com
> mickael> To: erlang-questions_at_erlang.org
> mickael> Subject: Database questions
> mickael>
> mickael> I have two questions concerning Erlang and databases :
> mickael>
> mickael> - About Mnesia :
> mickael> Is there a way to use several attributes as one key in a Mnesia table ?
>
> No, but the key kan be an arbritary complex Erlang term.
> You can for example let a record or tuple to constitute a structured key.
>
> mickael> - About SqlErlang :
> mickael> SqlErlang has been written to interface Erlang with Oracle. Does someone
> mickael> tried to modify this library to modify it to run with other RDBMS ?
> mickael>
> mickael> And I will finish with a general questions about Erlang and databases :
> mickael> What are the plans with Erlang and databases ? Will it smoothly include the
> mickael> RDBMS library ? Will Erlang integrate interfaces to other RDBMS ?
>
> In the new OTP R5 release there is an Erlang binding to ODBC. With
> this you will be able to interface a wide range of relational DBMS's.
Perhaps it should be mentioned that the ODBC library for OTP R5 will
only
be released on Solaris and Windows at this moment, not saying it won't
ever
be released on other platforms aswell.
--
Best Regards, Mattias Nilsson
Open Telecom Platform, Open Systems, Ericsson
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