All,
The current SQLite3 shell has a ".mode" directive to set the output
mode. One such mode is called "insert" which is intended to generate
INSERT statements.
The "insert" output mode is very basic, however, and lacks column names
in the output.
Attached is a patch to include the colu
Igor,
Your solution works well. What I can't figure out is how to efficiently create
a column representing V5-V0.
SerialNumber | V0 | V5 | Vdiff
-|---|--|---
123 | 0.2 | 0.6 | 0.4
This is what I'm using, but it takes twice as long:
select SerialNumber
Simon,
Your solution almost works. It returns a lot of duplicate rows and I don't know
how to fix that. I'm using what Igor posted.
Thanks,
--
Bill Drago
Senior Engineer
L3 Narda-MITEQ
435 Moreland Road
Hauppauge, NY 11788
631-272-5947 / William.Drago at L-3COM.com
> -Original Message
You might try
select SerialNumber, V0, V5, V5-V0
from
(select SerialNumber,
max(case Stim when 'V0' then Resp else null end) V0,
max(case Stim when 'V5' then Resp else null end) V5
from MyTable group by SerialNumber)
On 4/7/2015 6:58 AM, Drago, William @ CSG - NARDA-MITEQ wrote:
> Igor,
On Fri, Mar 27, 2015 at 10:48 AM, Drago, William @ CSG - NARDA-MITEQ <
William.Drago at l-3com.com> wrote:
> All,
>
> Say I have a table that looks like this:
>
>
> SerialNumber | Stim | Resp
> -|---|-
> .| .| .
> .| .| .
> 123
OOPS, a slight mistake (incomplete)
SELECT * FROM CROSSTAB('SELECT SerialNumber, Stim, Resp FROM table WHERE
Stim in (''V0'',''V5'') ORDER BY 1, 2) AS ct(SerialNumber, V0, V5)
On Tue, Apr 7, 2015 at 9:14 AM, John McKown
wrote:
> On Fri, Mar 27, 2015 at 10:48 AM, Drago, William @ CSG - NARDA-MIT
?Why not CREATE an intermediate SQL VIEW or TABLE with V0 and V5 and then
use the resulting VIEW or TABLE as input to a second query that computes
the diff?
Or use R?
First query:
CREATE TABLE newtable
AS SELECT
?
max(case Stim when 'V0' then Resp else null end) V0,
max(case
I'm an idiot, thanks for not pointing that out. I thought I was on the
PostgreSQL forum and managed to mess up. My apologies to all.
On Tue, Apr 7, 2015 at 9:19 AM, John McKown
wrote:
> OOPS, a slight mistake (incomplete)
>
> SELECT * FROM CROSSTAB('SELECT SerialNumber, Stim, Resp FROM table WHE
> On Apr 7, 2015, at 5:53 PM, John McKown
> wrote:
>
> I'm an idiot, thanks for not pointing that out. I thought I was on the
> PostgreSQL forum and managed to mess up. My apologies to all.
We all have been there.
I, for one, wish SQLite had some syntax sugar such as PIVOT/UNPIVOT:
http://o
Hello,
Any idea why there is such a performance hit when I ask for both min() and
max() at the same time? Shouldn't it be just as fast as querying them
individually?
Nothing else is reading or writing to this data at this time.
[14:32 sql04:/opt/pcaskey]$ cat ~/.sqliterc
.output /dev/null
PRAGMA
On 7 Apr 2015, at 9:42pm, Paul Caskey wrote:
> Any idea why there is such a performance hit when I ask for both min() and
> max() at the same time? Shouldn't it be just as fast as querying them
> individually?
Did you try using EXPLAIN QUERY PLAN ?
If the column you're minning (or maxing) is i
On Tue, Apr 7, 2015 at 1:42 PM, Paul Caskey wrote:
> Any idea why there is such a performance hit when I ask for both min() and
> max() at the same time? Shouldn't it be just as fast as querying them
> individually?
This has come up before. Either alone can be satisfied from an index
lookup, whi
Roy Keene wrote:
>
> The "insert" output mode is very basic, however, and lacks column
> names in the output.
>
Can you try the changes on the "expShell" branch and see if they work
for your use case? In order to get column names, you'll need to set
the headers to "on".
--
Joe Mistachkin
On Thu, Sep 11, 2014 at 8:58 AM, Dan Kennedy wrote:
> Fts5 is still in the experimental stage at the moment.
>
> If anybody has any ideas for useful features, or knows of problems with FTS4
> that could be fixed in FTS5, don't keep them to yourself!
Apologies for not noticing this thread earlier!
Hi
I am trying to use SQLite c api to create a db, table and then do a select
query but i am getting following error
#define SQLITE_RANGE 25 /* 2nd parameter to sqlite3_bind out of range */
Here is the code call
#define SELECT_DN "select kindex from TBL where dn=?"
char buffer[100] = "a/b/c/d
On 4/7/2015 8:04 PM, Kumar Suraj wrote:
> if ( (rv = sqlite3_prepare_v2(sqlHandle->db, command, strlen(command),
> &newStmt, NULL) ) != SQLITE_OK )
command: undeclared identifier.
--
Igor Tandetnik
I have not added the whole code.. command is defined.. in my code..
On Tue, Apr 7, 2015 at 5:42 PM, Igor Tandetnik wrote:
> On 4/7/2015 8:04 PM, Kumar Suraj wrote:
>
>> if ( (rv = sqlite3_prepare_v2(sqlHandle->db, command, strlen(command),
>> &newStmt, NULL)
You can add this to top of the code..
char command[512];
snprintf(command, 512, SELECT_DN);
On Tue, Apr 7, 2015 at 6:11 PM, Kumar Suraj wrote:
> I have not added the whole code.. command is defined.. in my code..
>
> On Tue, Apr 7, 2015 at 5:42 PM, Igor Tandetnik wrote:
>
>> On 4/7/201
On 4/7/2015 9:11 PM, Kumar Suraj wrote:
> You can add this to top of the code..
>
> char command[512];
> snprintf(command, 512, SELECT_DN);
I don't see anything wrong in the code you've shown. The problem must
lie in the code you haven't. My guess would be, the query you are
preparing i
On 4/7/15, Igor Tandetnik wrote:
> On 4/7/2015 9:11 PM, Kumar Suraj wrote:
>> You can add this to top of the code..
>>
>> char command[512];
>> snprintf(command, 512, SELECT_DN);
>
> I don't see anything wrong in the code you've shown. The problem must
> lie in the code you haven't. My gu
Joe,
Seems to work.
My use case is piping sqlite3 to sqlite3 with something other than
'SELECT *'.
Thanks !
Roy Keene
On 04/07/2015 04:21 PM, Joe Mistachkin wrote:
> Roy Keene wrote:
>> The "insert" output mode is very basic, however, and lacks column
>> names in the output.
>>
> Can you
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