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Re: How to use embedded sql to define an array

From: Michael Meskes <meskes(at)postgresql(dot)org>
To: pgsql-interfaces(at)postgresql(dot)org
Subject: Re: How to use embedded sql to define an array
Date: 2002-06-12 12:34:07
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-interfaces
On Mon, Jun 10, 2002 at 11:07:52AM -0500, Jeffrey Graham wrote:
> Can someone please tell me how to declare an array of double (float8) 
> using esql  when you
> don't know how long the array is until runtime?

How do you define the attribute in pgsql? I take it you cannot enter a
dimension here either.

>        for ( unsigned int i=0; i < myVector.length(); i++ )
>                m_data[i] = myVector[i];
>        EXEC SQL
>                insert into eraDATA
>                      ( data )
>                VALUES(  :m_data );
>        return sqlOK();

If you just need a way to insert the data you could write your data to a
string together with the insert command so that you end up with a

insert into eraDATA ( data ) VALUES('{1,2,3,....}')

This string can be executed using EXECUTE IMMEDIATE.

Or did you mean something else?

Hope this helps.

Michael Meskes
Go SF 49ers! Go Rhein Fire!
Use Debian GNU/Linux! Use PostgreSQL!

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