You don't nee to set columns to null, delete the column instead. Cheers
----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 8/06/2012, at 9:34 AM, Leonid Ilyevsky wrote: > Is it possible to explicitly set a column value to null? > > I see that if insert statement does not include a specific column, that > column comes up as null (assuming we are creating a record with new unique > key). > But if we want to update a record, how we set it to null? > > Another situation is when I use prepared cql3 statement (in Java) and send > parameters when I execute it. If I want to leave some column unassigned, I > need a special statement without that column. > What I would like is, prepare one statement including all columns, and then > be able to set some of them to null. I tried to set corresponding ByteBuffer > parameter to null, obviously got an exception. > > This email, along with any attachments, is confidential and may be legally > privileged or otherwise protected from disclosure. Any unauthorized > dissemination, copying or use of the contents of this email is strictly > prohibited and may be in violation of law. If you are not the intended > recipient, any disclosure, copying, forwarding or distribution of this email > is strictly prohibited and this email and any attachments should be deleted > immediately. This email and any attachments do not constitute an offer to > sell or a solicitation of an offer to purchase any interest in any investment > vehicle sponsored by Moon Capital Management LP (“Moon Capital”). Moon > Capital does not provide legal, accounting or tax advice. Any statement > regarding legal, accounting or tax matters was not intended or written to be > relied upon by any person as advice. Moon Capital does not waive > confidentiality or privilege as a result of this email.