Re: Clearing Arrays

From: Rob Dixon (rob_at_dixon.port995.com)
Date: 01/12/04


To: beginners@perl.org
Date: Mon, 12 Jan 2004 09:33:48 -0000

Colin (Support) wrote:
>
> I have this little memory blockage again.
> If I 'push' data from a database into an array to look/manipulate the data
> and then using the same array name, 'push' data into the array from another
> database, the data from the second DB file is added to the data of the
> first. How can I clear the first lot of data and start a fresh with an
> empty array ??

Hi Colin.

Use

  @array = ();

or

  undef @array;

(I like the easy ones!)

Cheers,

Rob



Relevant Pages

  • Re: KirbyBase
    ... creating objects from the database records was much easier. ... Hal, I don't know if you have had a chance to take a look at the beta yet, but I basically tried to implement a uniform way to specify one-to-one links, one-to-many links, and calculated fields in the ... I suppose it would in effect be embedding an array where all the ... My first couple of attempts at adding more complexity to KirbyBase did not honor this concept. ...
    (comp.lang.ruby)
  • Re: KirbyBase
    ... I'm an Object Guy and Jamey is a Database Guy. ... That requires the table name and key field name to be specified ... I suppose it would in effect be embedding an array where all the ... that is) might compress by a factor of 10 or more. ...
    (comp.lang.ruby)
  • Re: Dereferencing problem
    ... I want to work with data from my database. ... dereferencing for display is fine: ... There is no need to to copy the anonymous array to a named array. ... But the disadvantage of using this method is that, because hashes are ...
    (perl.beginners)
  • Re: using BLOB objects and ...
    ... while saving the array object to the database which is ok but while ... convert it back to object of 4 dimention boolean array which will be ... will let you store your 4 dimensional boolean array in it. ... You may have to modify my suggestion ...
    (comp.lang.java.programmer)
  • Re: using BLOB objects and ...
    ... - You could use Memo if you converted your boolean array into a text string. ... boolean array when you fetch it from the database. ... You might be able to put the whole array in an OLE Object, ...
    (comp.lang.java.programmer)