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  #1  
Old   
Ehsan Akhgari
 
Posts: n/a

Default Conversions between relational and logical database constructs - 04-03-2008 , 02:02 AM





Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari

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  #2  
Old   
Ed Prochak
 
Posts: n/a

Default Re: Conversions between relational and logical database constructs - 04-03-2008 , 08:17 AM





On Apr 3, 3:02 am, Ehsan Akhgari <ehsan.akhg... (AT) gmail (DOT) com> wrote:
Quote:
Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari
Then comp.databases.theory may be a better place to ask. Your question
went right over my head. I have no idea what a Datalog-based DB is.
I'll watch for your post in c.d.t. It could be enlightening.
Ed


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  #3  
Old   
Ed Prochak
 
Posts: n/a

Default Re: Conversions between relational and logical database constructs - 04-03-2008 , 08:17 AM


On Apr 3, 3:02 am, Ehsan Akhgari <ehsan.akhg... (AT) gmail (DOT) com> wrote:
Quote:
Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari
Then comp.databases.theory may be a better place to ask. Your question
went right over my head. I have no idea what a Datalog-based DB is.
I'll watch for your post in c.d.t. It could be enlightening.
Ed


Reply With Quote
  #4  
Old   
Ed Prochak
 
Posts: n/a

Default Re: Conversions between relational and logical database constructs - 04-03-2008 , 08:17 AM


On Apr 3, 3:02 am, Ehsan Akhgari <ehsan.akhg... (AT) gmail (DOT) com> wrote:
Quote:
Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari
Then comp.databases.theory may be a better place to ask. Your question
went right over my head. I have no idea what a Datalog-based DB is.
I'll watch for your post in c.d.t. It could be enlightening.
Ed


Reply With Quote
  #5  
Old   
Ehsan Akhgari
 
Posts: n/a

Default Re: Conversions between relational and logical database constructs - 04-04-2008 , 02:34 AM


On Apr 3, 5:17*pm, Ed Prochak <edproc... (AT) gmail (DOT) com> wrote:
Quote:
On Apr 3, 3:02 am, Ehsan Akhgari <ehsan.akhg... (AT) gmail (DOT) com> wrote:

Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). *I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari

Then comp.databases.theory may be a better place to ask. Your question
went right over my head. I have no idea what a Datalog-based DB is.
I'll watch for your post in c.d.t. It could be enlightening.
* Ed
Yes, you're right. I'll post my question on c.d.t then.

FWIW, by Datalog-based DBs I meant deductive databases. Maybe I need
rephrase my question...

Ehsan


Reply With Quote
  #6  
Old   
Ehsan Akhgari
 
Posts: n/a

Default Re: Conversions between relational and logical database constructs - 04-04-2008 , 02:34 AM


On Apr 3, 5:17*pm, Ed Prochak <edproc... (AT) gmail (DOT) com> wrote:
Quote:
On Apr 3, 3:02 am, Ehsan Akhgari <ehsan.akhg... (AT) gmail (DOT) com> wrote:

Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). *I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari

Then comp.databases.theory may be a better place to ask. Your question
went right over my head. I have no idea what a Datalog-based DB is.
I'll watch for your post in c.d.t. It could be enlightening.
* Ed
Yes, you're right. I'll post my question on c.d.t then.

FWIW, by Datalog-based DBs I meant deductive databases. Maybe I need
rephrase my question...

Ehsan


Reply With Quote
  #7  
Old   
Ehsan Akhgari
 
Posts: n/a

Default Re: Conversions between relational and logical database constructs - 04-04-2008 , 02:34 AM


On Apr 3, 5:17*pm, Ed Prochak <edproc... (AT) gmail (DOT) com> wrote:
Quote:
On Apr 3, 3:02 am, Ehsan Akhgari <ehsan.akhg... (AT) gmail (DOT) com> wrote:

Hi all,

I'm researching two-way conversion methods available for converting
between the constructs in the relational data model (i.e., the
relations) and those of logical databases (e.g., Datalog-based
databases). *I'm aware of the basic mappings between the intensional
and extensional constructs in the Relational Model and those of
Datalog-based databases (for example, considering each relation as a
predicate), but I'm looking for a theoretical ground for such
mappings.

Any help is greatly appreciated.

Best regards,
Ehsan Akhgari

Then comp.databases.theory may be a better place to ask. Your question
went right over my head. I have no idea what a Datalog-based DB is.
I'll watch for your post in c.d.t. It could be enlightening.
* Ed
Yes, you're right. I'll post my question on c.d.t then.

FWIW, by Datalog-based DBs I meant deductive databases. Maybe I need
rephrase my question...

Ehsan


Reply With Quote
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