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Re: [amibroker] Re: strange error when doing odbc connectivity



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You don't have a date in your table.  i've reviewed the source code for this plugin and worked with the .dll for a while now, and without a date you need to use odbcgetvalue instead of odbcgetarray.
 
as a special note, you must use the date format called datetime with default 0000-00-00 00:00:00
 
i'd recommend googling site:www.amibroker.com odbc and going to the odbc page that amibroker put together for this purpose.
 
----- Original Message -----
Sent: Thursday, September 04, 2008 11:19 AM
Subject: [amibroker] Re: strange error when doing odbc connectivity

1. there are lots of rows in that table.
2. i removed the space after testtable but does not change the result
3. following is the row count.

mysql> desc testtable;
+-----------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+-------------+------+-----+---------+-------+
| somevalue | varchar(20) | YES | | NULL | |
| fieldone | varchar(20) | YES | | NULL | |
+-----------+-------------+------+-----+---------+-------+
2 rows in set (0.03 sec)
mysql> select count(*) from testtable ;
+----------+
| count(*) |
+----------+
| 2571 |
+----------+
1 row in set (0.00 sec)

--- In amibroker@xxxxxxxxxps.com, "Chris DePuy" <cdepuy@xxx> wrote:
>
> 3 things come to mind as possibilities:
>
> 1*you are retrieving an array, but maybe you only have one value?
> 2*you have a space after testtable
> 3*I don't know if you checked to see if the data made it into the
table itself, but you might want to verify that at the (assuming
you're using mysql):
>
> mysql > select * from testtable;
>
> and see you you get anything. if there is nothing being
successfully inserted into the databse, then it would register empty
when you query it
>
>
> ----- Original Message -----
> From: murthysuresh
> To: amibroker@xxxxxxxxxps.com
> Sent: Thursday, September 04, 2008 10:11 AM
> Subject: [amibroker] strange error when doing odbc connectivity
>
>
> i just inserted the data. i cannot retrieve it. it gives strange
error
> if( NOT odbcExecuteSQL("INSERT INTO testtable
(fieldone,somevalue)
> VALUES ( 'somevalue','"+Name()+"' )") )
>
> {
>
> printf("INSERT failed with following message : " +odbcGetLastError
> () );
> }
> // this data is now inserted into the databse. i verified it.
> b=odbcGetArraySQL("SELECT fieldone from testtable ");
> WriteVal(b);
> printf(odbcGetLastError() );
>
> i get the following error. it just inserted to the fieldone
column.
>
> {EMPTY}
> Invalid field name or field index.
>

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