you mean something like this :
If Length(st) 0 Then Begin
SQLQuery1.SQL.Text := st;
End
Else Begin
exit;
End;
Try
SQLQuery1.Open;
Except
On e: Exception Do Begin
ShowMessage('Fehler ungültige Eingabe.'#13'Fehlermeldung:'#13 +
e.Message);
exit;
End;
After executing a query, is there a way to test if there were any
errors?
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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
sequence used
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 querying
On Thu, 13 Nov 2014 11:33:58 -0300
silvioprog silviop...@gmail.com 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):
snip
Sorry, you lost me there, but not a problem
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas m...@delfire.net 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:
On Fri, Nov 14, 2014 at 10:05 AM, Reimar Grabowski reimg...@web.de wrote:
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas m...@delfire.net 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
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas m...@delfire.net 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:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas m...@delfire.net wrote:
Hi,
Take a look in Greyhound project: https://github.com/mdbs99/Greyhound
I did and
On Fri, Nov 14, 2014 at 9:53 AM, Reimar Grabowski reimg...@web.de wrote:
On Thu, 13 Nov 2014 11:33:58 -0300
silvioprog silviop...@gmail.com wrote:
I use an own TPreparedStatement (equivalent to TSQLQuery prepared +
Params, but my structure does not uses TDataset) that I get the last
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,
but
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Thu, 13 Nov 2014 13:26:32 -0300
Marcos Douglas m...@delfire.net wrote:
Hi,
Take a look in Greyhound project:
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 call the method
created for this:
Function GetInsertID: int64;
There is a plan to let
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt mich...@freepascal.org 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
On Fri, Nov 14, 2014 at 10:39 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
mich...@freepascal.org 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
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 call the
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:39 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:15 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Reimar
On Fri, Nov 14, 2014 at 10:50 AM, Reimar Grabowski reimg...@web.de wrote:
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt mich...@freepascal.org wrote:
Connections for databases that have lastinsertID you can call the method
created for this:
Function GetInsertID: int64;
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 call the
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. MSEgui
On Fri, Nov 14, 2014 at 11:11 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:39 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
On Fri, Nov 14, 2014 at 10:15
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 name of
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
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
2014-11-14 11:43 GMT-03:00 Michael Van Canneyt mich...@freepascal.org:
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
On Fri, 14 Nov 2014, silvioprog wrote:
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
On Fri, 14 Nov 2014, luiz americo pereira camara wrote:
2014-11-14 11:43 GMT-03:00 Michael Van Canneyt mich...@freepascal.org:
On Fri, 14 Nov 2014, Marcos Douglas wrote:
This RETURNING clause works for all DBMS?
AFAIK Only sqlite does not (maybe it does today).
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 mechanism
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 = set of
On Fri, Nov 14, 2014 at 12:49 PM, silvioprog silviop...@gmail.com 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
On Fri, 14 Nov 2014 12:49:44 -0300
silvioprog silviop...@gmail.com wrote:
snip
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
On Fri, Nov 14, 2014 at 11:43 AM, Michael Van Canneyt
mich...@freepascal.org 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
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
On Fri, Nov 14, 2014 at 2:11 PM, Michael Van Canneyt
mich...@freepascal.org 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
On Fri, 14 Nov 2014 14:50:20 +0100
Reimar Grabowski reimg...@web.de wrote:
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt mich...@freepascal.org wrote:
Connections for databases that have lastinsertID you can call the method
created for this:
Function GetInsertID:
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Fri, 14 Nov 2014 14:50:20 +0100
Reimar Grabowski reimg...@web.de wrote:
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt mich...@freepascal.org wrote:
Connections for databases that have lastinsertID you can call the method
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
On Fri, Nov 14, 2014 at 3:23 PM, Michael Van Canneyt mich...@freepascal.org
wrote:
On Fri, 14 Nov 2014, Reimar Grabowski wrote:
On Fri, 14 Nov 2014 14:50:20 +0100
Reimar Grabowski reimg...@web.de wrote:
On Fri, 14 Nov 2014 14:15:08 +0100 (CET)
Michael Van Canneyt mich...@freepascal.org
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 name
On Fri, Nov 14, 2014 at 8:32 PM, Marco van de Voort mar...@stack.nl 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)
On Fri, 14 Nov 2014 19:23:50 +0100 (CET)
Michael Van Canneyt mich...@freepascal.org 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
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
On Thu, Nov 13, 2014 at 11:07 AM, Reimar Grabowski reimg...@web.de 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
On Thu, Nov 13, 2014 at 11:07 AM, Reimar Grabowski reimg...@web.de 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
I'm trying to familiarize with MySql components, using mysql 5.1.
I downloaded the TryMySql example linked from the Wiki page, I've
changed TMySQL50Connection to TMySQL51Connection, and set in SQLQuery
ParseSQL=False and ReadOnly=true, as suggested, but when I try to run
it, the connect to
On Wed, 26 Dec 2012, Giuliano Colla wrote:
I'm trying to familiarize with MySql components, using mysql 5.1.
I downloaded the TryMySql example linked from the Wiki page, I've changed
TMySQL50Connection to TMySQL51Connection, and set in SQLQuery ParseSQL=False
and ReadOnly=true, as
Another point is add a transaction on your project and assign it to
sqlconnection...
At least, i never connected without a transaction
Em 26/12/2012 12:37, Michael Van Canneyt mich...@freepascal.org
escreveu:
On Wed, 26 Dec 2012, Giuliano Colla wrote:
I'm trying to familiarize with
Il 26/12/2012 15:53, William Oliveira Ferreira ha scritto:
Another point is add a transaction on your project and assign it to
sqlconnection...
At least, i never connected without a transaction
Did you set
SQLQuery1.Database:=MySQLConnection1;
?
Also 'Show databases' will - to
Hi all,
I'm using TSQLQuery on SQLite in order to manipulation very long unicode
strings (in tibetan).
On inserting there is no problem, everything in inserted correctly in the
database, using this code, containing a SQLquery :
procedure ExecuteSQL(pRequete: string; pCommit: boolean);
Does it heappens to anyone? here, any of mysql TSQLQuery.Open changed
TSQLQuery.State
William de Oliveira Ferreira
Bacharel em Sistemas de Informação
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On Mon, 2010-05-17 at 12:49 -0500, Albert Zuurbier wrote:
would like to discuss (and hopefully learn) about other
things I
found.
It always amazes me how people can have huge problems with the
most
simple things. It probably means that there
IT WORKS! I definitively vote for documentation. Now, documentation is
where I can do something. I cannot add anything to the development of
TSQLQuery itself, so much is made more than clear. But, I am happy
that the component works the way I expected it to work.
Glad to hear. But if you're
On Sun, 2010-05-16 at 15:46 -0500, Albert Zuurbier wrote:
Over the past few days I have tried creating and editing new records
with the TSQLQuery component. I succeeded, but with quite a
workaround.
As stated in bug report 0016076 (not authored by me) TSQLQuery gives
errors if you try to
would like to discuss (and hopefully learn) about other things I
found.
It always amazes me how people can have huge problems with the most
simple things. It probably means that there has to be something wrong,
somewhere. (Documentation?) Are you familiar with datasets in
Over the past few days I have tried creating and editing new records with
the TSQLQuery component. I succeeded, but with quite a workaround.
As stated in bug report 0016076 (not authored by me) TSQLQuery gives errors
if you try to create a new record and think TSQLQuery would all handle it.
The
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