Hi All,
I have a sqlite database with single table with columns A, B and C.
I have created composite primary key on A and B, and an autoindex was
created (dont know on which columns this index is created).
When I fire select/delete query with WHERE clause on column A, it is
completed in milliseco
On Thu, May 5, 2011 at 7:16 PM, Simon Slavin wrote:
>
> On 6 May 2011, at 12:17am, Tim Butterfield wrote:
>
>> Since my blob column can
>> contain either text or binary file data, both cases are valid. Does
>> VerifyType need to add a valid DbType.Binary for case
>> TypeAffinity.Text or is someth
On Fri, May 6, 2011 at 2:16 AM, Simon Slavin wrote:
> SQLite allows any column to contain values of any type. If
> SQLiteDataReader.VerifyType is to respect that then I don't think it has any
> use at all. On the other hand, if you choose to use it with your database,
> then presumably you shou
On 6 May 2011, at 12:17am, Tim Butterfield wrote:
> Since my blob column can
> contain either text or binary file data, both cases are valid. Does
> VerifyType need to add a valid DbType.Binary for case
> TypeAffinity.Text or is something else going on here?
SQLite allows any column to contain
SQLiteDataReader.VerifyType thows an exception if it does not find
matching DbType and TypeAffinity. I found a case where a select on
several columns, one of which is type blob, had TypeAffinity.Text for
that column instead of TypeAffinity.Blob. If the column has binary
data, TypeAffinity.Blob(4)
Now I understand better , I need the ado net for vs2008
I have a version but it does not find my table (thats the only error so far)
this is what I have
System.Data.SQLite.dll 1.0.66.0
883 KB (904,704 bytes)
modified Sunday, April 18, 2010, 1:58:58 PM
Original filename SQLite3.DLL 3.6.23.
On Thu, May 05, 2011 at 01:52:39PM +0200, Guillaume BIENKOWSKI scratched on the
wall:
> So you get it, if the step is returning SQLITE_ROW, we'll never get the
> profile callback triggered.
> Then it's not my fault. I thought I was doing something wrong here, and that
> my base could be corrupted
I got it passed this error by using different SQLite library and the ADO.NET
provider(an older one)
its a bit confusing for a newbie. what is the newest I could use for vb net
2008?
Filip Navara-3 wrote:
>
> What platform is set as target for the VB.NET code (x86 / x64 / Any CPU)?
> Which bui
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On 05/05/2011 04:52 AM, Guillaume BIENKOWSKI wrote:
> Also, I didn't dive in the code, but is there a reason to filter these?
> I guess it is to *not* trigger the callback multiple times (if you do
> multiple calls to step()).
Profile is telling you h
> I have no idea about the 'profile' thing, but since you want your statement
>to end (i.e. return SQLITE_DONE) after the first retrieved record, I recommend
>using 'LIMIT 1' in your query.
That's actually what I'm doing =)
Example:
# SELECT * FROM mytable WHERE key = ? ORDER BY userid DESC LI
>From: Guillaume BIENKOWSKI
To: General Discussion of SQLite Database
Sent: Thu, May 5, 2011 3:00:55 PM
Subject: Re: [sqlite] Profile API: triggered only when sqlite3_step() returns
DONE?
>Okay we answered at the same time.
Indeed :)
>I have no problem concerning the retrieving of data, I u
Okay we answered at the same time.
I have no problem concerning the retrieving of data, I use sqlite3_column()
to get the data I need. The callback I'm talking about is the *profiling*
callback, not the one you're thinking about (you're talking about the
callback you pass when using sqlite3_exec()
Okay I'll answer myself:
In the SQlite 3.6.0 source code you get this:
// 3.6.0 (vdbeapi.c)
#ifndef SQLITE_OMIT_TRACE
/* Invoke the profile callback if there is one
*/
if( rc!=SQLITE_ROW && db->xProfile && !db->init.busy && p->nOp>0
&& p->aOp[0].opcode==OP_Trace && p->aOp[0].p4.z
Please, read once more the documentation:
http://www.sqlite.org/cintro.html
sqlite3_step() does not trigger any callback function, it only tells you if
there's any data to retrieve.
If you want to retrieve data, either use sqlite3_column() in your exemplified
typical code, or use sqlite3_exec
Hey guys,
I'm trying to use the sqlite3_profile() function to monitor the delays
of the requests I make in my application.
I can see some of the statements in my trace, but it seems that not
all the statements trigger the callback.
Some context informations first:
- sqlite3 is in version 3.6.0, r
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