Re: Using PreparedStatement to call a function

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От
Dave Cramer
Тема
Re: Using PreparedStatement to call a function
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Msg-id
75DA8EE3-3772-4265-B7E8-12F44110EBFC@fastcrypt.com
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Using PreparedStatement to call a function (José Arthur Benetasso Villanova)
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error code to tell db does not exist "surabhi.ahuja" <surabhi.ahuja@iiitb.ac.in>
Jose,

Check the archives there are a few,

Basically you have to create a class which implements the Array  
interface. Most of it can be unimplemented, except for toString which  
will have to return

"{string1, string2}"

and

getBaseTypeName()

which will have to return "varchar" in the case of varchar[]

Dave
On 14-Jun-06, at 3:03 PM, José Arthur Benetasso Villanova wrote:

> HI all.
>
> I have a function called:
>
> dbcmp(
> 	t varchar,
> 	p varchar[],
> 	c varchar[],
> 	n INTEGER
> ) RETURNS SETOF dbcmp_t
> ...
>
>
> Today, I call my function like this:
>
> String sql = "select * from dbcmp('" + t + "','" + p + "','" + "',"  
> + n + ")";
> Statement stmt = con.createStatement(sql);
> ResultSet rs = stmt.executeQuery();
> ...
>
> I want to transform my code to use PreparedStatement like this:
>
> String sql = "select * from dbcmp(?, ?, ?, ?)";
> PreparedStatement ps = con.preparedStatement(sql);
> ps.setString(1, t);
> ps.setArray(2, p);
> ps.setArray(3, c);
> ps.setInt(4, n);
>
> But I don´t know how to create an Array object to use the set.
>
> Can anyone help me? :-)
>
> Thanks in advance.
>
> -- 
> José Arthur Benetasso Villanova
> ICQ 2138887
>
> ---------------------------(end of  
> broadcast)---------------------------
> TIP 4: Have you searched our list archives?
>
>               http://archives.postgresql.org
>

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