On Fri, Nov 14, 2014 at 09:41:27PM -0300, silvioprog wrote:
> >
> > Return the value most recently returned by nextval in the current
> > session. This function is identical to currval, except that instead of
> > taking the sequence name as an argument it fetches the value of the last
> > seque
On 2014-11-13 14:07, Reimar Grabowski wrote:
> It seems to work but it's IMHO not very nice.
> Ideally I'd like to have TSQLQuery do it for me and offer me some property
> like SQLQuery.LastInsertID or something along those lines.
> Is there any way to get the new PK value without manually queryin
On Fri, 14 Nov 2014 19:23:50 +0100 (CET)
Michael Van Canneyt wrote:
> a) Did you do an insert right before the call to GetInsertID ?
> b) Is the transaction active after the insert ?
> c) The connection transaction should be the same as the transaction of the
> insert.
Got it working.
MySQL55
On Fri, Nov 14, 2014 at 8:32 PM, Marco van de Voort wrote:
> On Fri, Nov 14, 2014 at 03:11:30PM +0100, Michael Van Canneyt wrote:
> >
> > By the very nature of the problem: GetLastAutoIncValue simply cannot be
> implemented in general.
> >
> > In firebird, postgres,
>
> (and Oracle afaik)
>
> > t
On Fri, Nov 14, 2014 at 03:11:30PM +0100, Michael Van Canneyt wrote:
>
> By the very nature of the problem: GetLastAutoIncValue simply cannot be
> implemented in general.
>
> In firebird, postgres,
(and Oracle afaik)
> these values are generated using a generator/sequence.
> You don't know the
On Fri, Nov 14, 2014 at 3:23 PM, Michael Van Canneyt wrote:
>
> On Fri, 14 Nov 2014, Reimar Grabowski wrote:
>
>> On Fri, 14 Nov 2014 14:50:20 +0100
>> Reimar Grabowski wrote:
>>
>> On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
>>> Michael Van Canneyt wrote:
>>>
>>> Connections for databases that h
On Fri, 14 Nov 2014, Marcos Douglas wrote:
specify a refresh SQL statement.
(coincidentally: these are the engines that use autoInc type fields
instead of sequences)
This option, to specify a SQL statement, is the programmer that write
the SQL? This should come from driver, don't?
If th
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Fri, 14 Nov 2014 14:50:20 +0100
Reimar Grabowski wrote:
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt wrote:
Connections for databases that have lastinsertID you can call the method
created for this:
Function GetInsertID: i
On Fri, 14 Nov 2014 14:50:20 +0100
Reimar Grabowski wrote:
> On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
> Michael Van Canneyt wrote:
>
> > Connections for databases that have lastinsertID you can call the method
> > created for this:
> >
> > Function GetInsertID: int64;
Unfortunately it does no
On Fri, Nov 14, 2014 at 2:11 PM, Michael Van Canneyt
wrote:
>
>
> On Fri, 14 Nov 2014, Marcos Douglas wrote:
>
>>> Your remarks sound like maybe you don't understand/know exactly what
>>> RETURNING does ?
>>> It was invented exactly to deal with such things.
>>
>>
>> AFAIK RETURNING is a SQL claus
On Fri, 14 Nov 2014, Marcos Douglas wrote:
Your remarks sound like maybe you don't understand/know exactly what
RETURNING does ?
It was invented exactly to deal with such things.
AFAIK RETURNING is a SQL clause. I know that but I never used before.
You tell me SQLdb will use RETURNING claus
On Fri, Nov 14, 2014 at 11:43 AM, Michael Van Canneyt
wrote:
>
>
> On Fri, 14 Nov 2014, Marcos Douglas wrote:
>
>>> By the very nature of the problem: GetLastAutoIncValue simply cannot be
>>> implemented in general.
>>>
>>> In firebird, postgres, these values are generated using a
>>> generator/se
On Fri, 14 Nov 2014 12:49:44 -0300
silvioprog wrote:
> This means that the value returned by the function to a given
> client is the first AUTO_INCREMENT value generated for most recent
> statement affecting an AUTO_INCREMENT column *by that client*.
Just to clarify, the 'first' here is importa
On Fri, Nov 14, 2014 at 12:49 PM, silvioprog wrote:
> On Fri, Nov 14, 2014 at 11:43 AM, Michael Van Canneyt <
> mich...@freepascal.org> wrote:
> [...]
>
>> AFAIK Only sqlite does not (maybe it does today). But that is not a DBMS
>> :-)
>
>
> Yes. It would be nice execute the "last_insert_rowid()"
On Fri, Nov 14, 2014 at 11:47 AM, Michael Van Canneyt <
mich...@freepascal.org> wrote:
[...]
> I was planning some fallback mechanism, yes. And a "class function
> SupportReturningClause : Boolean" or something similar.
> Or maybe
>
> TDBCapability = (lastID,returningclause);
> TDBCapabilities = s
On Fri, Nov 14, 2014 at 11:43 AM, Michael Van Canneyt <
mich...@freepascal.org> wrote:
[...]
> AFAIK Only sqlite does not (maybe it does today). But that is not a DBMS
> :-)
Yes. It would be nice execute the "last_insert_rowid()" to return it in the
same cursor (AFAIK, Android SDK use this mecha
On Fri, 14 Nov 2014, luiz americo pereira camara wrote:
2014-11-14 11:43 GMT-03:00 Michael Van Canneyt :
On Fri, 14 Nov 2014, Marcos Douglas wrote:
This RETURNING clause works for all DBMS?
AFAIK Only sqlite does not (maybe it does today). But that is not a DBMS
On Fri, 14 Nov 2014, silvioprog wrote:
On Fri, Nov 14, 2014 at 11:11 AM, Michael Van Canneyt
wrote:
[...]
By the very nature of the problem: GetLastAutoIncValue simply cannot be
implemented in general.
In firebird, postgres, these values are generated using a
generator/sequenc
2014-11-14 11:43 GMT-03:00 Michael Van Canneyt :
On Fri, 14 Nov 2014, Marcos Douglas wrote:
>
>
> This RETURNING clause works for all DBMS?
>>
>
> AFAIK Only sqlite does not (maybe it does today). But that is not a DBMS
> :-)
>
MySQL also does not implement it
This is the workaround i use today:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
By the very nature of the problem: GetLastAutoIncValue simply cannot be
implemented in general.
In firebird, postgres, these values are generated using a
generator/sequence.
...as well as could have a trigger for these cases, encapsulating the
"pro
On Fri, 14 Nov 2014, Martin Schreiber wrote:
On Friday 14 November 2014 15:11:30 Michael Van Canneyt wrote:
The idea is to add [pfRefresh] to providerflags.
When doing an insert, the fields with this flag will be added to the
RETURNING clause and used to update the buffer.
I suggest [pfRef
On Fri, Nov 14, 2014 at 11:11 AM, Michael Van Canneyt <
mich...@freepascal.org> wrote:
[...]
> By the very nature of the problem: GetLastAutoIncValue simply cannot be
> implemented in general.
>
> In firebird, postgres, these values are generated using a
> generator/sequence.
> You don't know the
On Fri, Nov 14, 2014 at 11:11 AM, Michael Van Canneyt
wrote:
>
>
> On Fri, 14 Nov 2014, Marcos Douglas wrote:
>
>> On Fri, Nov 14, 2014 at 10:39 AM, Michael Van Canneyt
>> wrote:
>>>
>>>
>>>
>>> On Fri, 14 Nov 2014, Marcos Douglas wrote:
>>>
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Cann
On Friday 14 November 2014 15:11:30 Michael Van Canneyt wrote:
>
> The idea is to add [pfRefresh] to providerflags.
> When doing an insert, the fields with this flag will be added to the
> RETURNING clause and used to update the buffer.
>
I suggest [pfRefreshInsert,pfRefreshUpdate] as in MSEgui. MS
On Fri, Nov 14, 2014 at 10:40 AM, Michael Van Canneyt <
mich...@freepascal.org> wrote:
>
> On Fri, 14 Nov 2014, silvioprog wrote:
>
>> On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt <
>> mich...@freepascal.org> wrote:
>> [...]
>> Connections for databases that have lastinsertID you can
On Fri, Nov 14, 2014 at 10:50 AM, Reimar Grabowski wrote:
> On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
> Michael Van Canneyt wrote:
>
> > Connections for databases that have lastinsertID you can call the method
> created for this:
> >
> > Function GetInsertID: int64;
> That is actually exactly wha
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:39 AM, Michael Van Canneyt
wrote:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
wrote:
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Thu, 13 Nov 2014 13:26:32
On Fri, Nov 14, 2014 at 10:40 AM, Michael Van Canneyt
wrote:
>
>
> On Fri, 14 Nov 2014, silvioprog wrote:
>
>> On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
>> wrote:
>> [...]
>> Connections for databases that have lastinsertID you can call the
>> method created for this:
>>
>>
On Fri, Nov 14, 2014 at 10:39 AM, Michael Van Canneyt
wrote:
>
>
> On Fri, 14 Nov 2014, Marcos Douglas wrote:
>
>> On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
>> wrote:
>>>
>>>
>>>
>>> On Fri, 14 Nov 2014, Reimar Grabowski wrote:
>>>
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos D
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt wrote:
> Connections for databases that have lastinsertID you can call the method
> created for this:
>
> Function GetInsertID: int64;
That is actually exactly what I was looking for.
I was just too dense to realize that it belongs to
On Fri, 14 Nov 2014, silvioprog wrote:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
wrote:
[...]
Connections for databases that have lastinsertID you can call the method
created for this:
Function GetInsertID: int64;
There is a plan to let SQLDB retrieve the val
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
wrote:
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas wrote:
Hi,
Take a look in Greyhound project: https://github.com/mdbs99/Greyhound
I d
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt <
mich...@freepascal.org> wrote:
[...]
> Connections for databases that have lastinsertID you can call the method
> created for this:
>
> Function GetInsertID: int64;
>
> There is a plan to let SQLDB retrieve the value of some fields fro the DB
On Fri, Nov 14, 2014 at 9:53 AM, Reimar Grabowski wrote:
> On Thu, 13 Nov 2014 11:33:58 -0300
> silvioprog wrote:
>
> > I use an own "TPreparedStatement" (equivalent to TSQLQuery prepared +
> > Params, but my structure does not uses TDataset) that I get the last
> > inserted ID with (pseudo code
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
wrote:
>
>
> On Fri, 14 Nov 2014, Reimar Grabowski wrote:
>
>> On Thu, 13 Nov 2014 13:26:32 -0300
>> Marcos Douglas wrote:
>>
>>> Hi,
>>> Take a look in Greyhound project: https://github.com/mdbs99/Greyhound
>>
>> I did and could not see how i
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas wrote:
Hi,
Take a look in Greyhound project: https://github.com/mdbs99/Greyhound
I did and could not see how it helps.
Here you can see an example using "last id":
https://github.com/mdbs99/Gre
On Fri, Nov 14, 2014 at 10:05 AM, Reimar Grabowski wrote:
> On Thu, 13 Nov 2014 13:26:32 -0300
> Marcos Douglas wrote:
>
>> Hi,
>> Take a look in Greyhound project: https://github.com/mdbs99/Greyhound
> I did and could not see how it helps.
It has a code that working with auto-inc.
>> Here you
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas wrote:
> Hi,
> Take a look in Greyhound project: https://github.com/mdbs99/Greyhound
I did and could not see how it helps.
> Here you can see an example using "last id":
> https://github.com/mdbs99/Greyhound/blob/master/test/ghsqltest.pas#L285
Y
On Thu, 13 Nov 2014 11:33:58 -0300
silvioprog wrote:
> I use an own "TPreparedStatement" (equivalent to TSQLQuery prepared +
> Params, but my structure does not uses TDataset) that I get the last
> inserted ID with (pseudo codes):
Sorry, you lost me there, but not a problem (see my response to M
On Thu, Nov 13, 2014 at 11:07 AM, Reimar Grabowski wrote:
> Hi,
>
> first of all I am new to using Lazarus/FPC for database communication.
> I have set up my database connection, transaction and queries via the Object
> Inspector and all is working as it should. But I have a little problem
> get
On Thu, Nov 13, 2014 at 11:07 AM, Reimar Grabowski wrote:
> Hi,
>
> first of all I am new to using Lazarus/FPC for database communication.
> I have set up my database connection, transaction and queries via the
> Object Inspector and all is working as it should. But I have a little
> problem gett
Hi,
first of all I am new to using Lazarus/FPC for database communication.
I have set up my database connection, transaction and queries via the Object
Inspector and all is working as it should. But I have a little problem getting
the PK value of a newly inserted record (the PK field is an auto-
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