Re: setArray

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От Andreas Niemeyer
Тема Re: setArray
Дата
Msg-id et42ug$q3p$1@sea.gmane.org
обсуждение исходный текст
Ответ на Re: setArray  (Miroslav Šulc <miroslav.sulc@startnet.cz>)
Список pgsql-jdbc
Hi,

Could you just provide a concrete code snippet?

I would like to pass int[], String[], timestamp[] and float[] arrays.

Thank you in advance,
Andreas


Miroslav Šulc schrieb:
> Hi,
>
> I recently had to solve this too. What I did is:
>
> 1) I created class that implements java.sql.Array (it is sufficient to
> implement getArray(), getBaseType(), getBaseTypeName() and toString(),
> for details see Java API docs) + I added one extra method,
> setArray(Class componentType, Object[] array), where componentType is
> component type of the array, which I use for setting the array value
> into the array
>
> 2) Then I use this code to set the array:
>
>                    final MyArray array = new MyArray();
>                    array.setArray(componentType, arrayValue);
>                    pstm.setArray(index, array);
>
> HTH
>
> --
> Miroslav Šulc
>
>
>
> Alex Stienstra napsal(a):
>> Hi,
>>
>> Iam trying to set an array in a prepared statement like this:
>>
>> PreparedStatement stmnt = ds.prepareStatement(
>>  "INSERT INTO trainingen (\"Atleet\", \"Datum\", \"Tijdstip\",
>> \"Afstand\", \"Tijd (Zone)\") VALUES (?,?,?,?,?)"
>> );
>>    stmnt.setString(5, "{1,2,3,4,5,6}");
>>
>> Assuming that the 5th parameter is an array of integer i get the
>> follow error message:
>>
>> ERROR: column "Tijd (Zone)" is of type integer[] but expression is of
>> type character varying
>>
>> I understood from previous discussions that the driver underwater will
>> convert the parameter of setArray
>> into a string representation like i do in the example above. I there
>> any other way of setting an array
>> field in a prepared statement?
>>
>> Alex.
>>
>>
>>
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