Skip site navigation (1) Skip section navigation (2)

Peripheral Links

Header And Logo

PostgreSQL
| The world's most advanced open source database.

Site Navigation

Search archives
  Advanced Search

Re: Insert vs Update syntax


  • From: Brent Friedman <bfriedman(at)scanonline(dot)com>
  • To: Clodoaldo <clodoaldo(dot)pinto(dot)neto(at)gmail(dot)com>
  • Cc: Martijn van Oosterhout <kleptog(at)svana(dot)org>, PostgreSQL - General ML <pgsql-general(at)postgresql(dot)org>
  • Subject: Re: Insert vs Update syntax
  • Date: Fri, 29 Feb 2008 12:13:58 -0500
  • Message-id: <47C83D56.2060202@scanonline.com> <text/plain>

If you don't like the standard sql implementation, you could use plsql or any language to make an abstraction layer/wrapper for this functionality. Just pass everything as a key/value pair, in an array or hashtable structure, to your abstraction layer/wrapper, and it can cycle through the data structure to do the insert or update for you.

In very rough psuedo-code, something like

   create my_data_structure {
          table = employees,
          first_name = sally,
          last_name = smith,
          date_of_birth = 2008-01-01
   }

   call function mywrapper (my_data_structure)

         .....
function cycles through array, and creates an sql string dynamically

This may have problems with constraints, foreign keys, etc.
Clodoaldo wrote:
2008/2/29, Martijn van Oosterhout <kleptog(at)svana(dot)org>:
On Fri, Feb 29, 2008 at 01:17:20PM -0300, Clodoaldo wrote:
 > When inserting into a table and there are many columns to be inserted
 > it is hard to synchronize columns to values:


<snip>


 > Is there some reason for the insert syntax to be the way it is in
 > instead of the much easier to get it right Update syntax?:


Because it's what the SQL standard says. If you don't like it I suggest
 you take it up with them... But it's a little late to change now I
 think.

I know about the standards and I'm not blaming postgresql. I just want
to know if it is worth to bring the the matter to some responsible
group.

Regards, Clodoaldo Pinto Neto

---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend





Home | Main Index | Thread Index

Privacy Policy | About PostgreSQL
Copyright © 1996 – 2012 PostgreSQL Global Development Group