[Lazarus] Accessing MS SQLServer database from Lazarus/FPC?

[Bo Berglund]

On Sun, 23 Jan 2011 18:23:25 +0100, "Dipl. Phys. Jörg Schläger"
<js at jsdevelop.de> wrote:

>
>Zitat von Bo Berglund <bo.berglund at gmail.com>:
>
>> On Sun, 23 Jan 2011 13:53:45 +0100, "Dipl. Phys. Jörg Schläger"
>> <js at jsdevelop.de> wrote:
>>
>>>
>>> and next you might think of using query.SQL.Text := 'EXEC 
>>> SelectDongleData @@SerialNo=2485';
>>
>> Tried adding an extra @ to parameter.
>> Results are as follows:
>>
>> EXEC SelectDongleData @@SerialNo=2485
>>
>> 'Cannot open a non-select statement'
>>
>> EXECUTE SelectDongleData @@SerialNo=2485
>>
>> 'Could not execute statement. ODBC error details: LastReturnCode:
>> SQL_ERROR; Record 1: SqlState: 42000; NativeError: 8145; Message:
>> [Microsoft][ODBC SQL Server Driver][SQL Server]@@SerialNo is not a
>> parameter for procedure SelectDongleData.;'
>
>of course you have to change your sql statement to define @@SerialNo
>
>procedure SelectDongleData @@SerialNo int AS 

Why?
It is already defined as follows:

CREATE PROC dbo.SelectDongleData
@SerialNo int = 0
AS

I don't see the reason to add another @ in the declaration. Can you
explain this a bit?


-- 
Bo Berglund
Developer in Sweden