database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-24 14:22:24 +03:00
Code Activity

Remove somebody's flight of fancy about an UPDATE with ORDER BY and LIMIT.

Browse Source
This commit is contained in:
Tom Lane
2006-03-08 22:59:17 +00:00
parent a0af608adc
commit 0a5c6fadf4
1 changed files with 1 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
doc/src/sgml/ref/update.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/update.sgml,v 1.33.2.1 2006/01/19 23:09:46 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/update.sgml,v 1.33.2.2 2006/03/08 22:59:17 tgl Exp $
PostgreSQL documentation
-->
@ -216,20 +216,6 @@ UPDATE employees SET sales_count = sales_count + 1 WHERE id =
</programlisting>
</para>
<para>
Now that all the papers are signed, update the most recently closed
deal of the travelling salesperson who closed the Rocket Powered
Skates deal with the Acme Corporation.
<programlisting>
UPDATE employees SET last_closed_deal = deal.id
FROM accounts JOIN deals ON (account.id = deal.account_id)
WHERE deal.employee_id = employees.id
AND deal.name = 'Rocket Powered Skates'
AND accounts.name = 'Acme Corporation'
ORDER BY deal.signed_date DESC LIMIT 1;
</programlisting>
</para>
<para>
Attempt to insert a new stock item along with the quantity of stock. If
the item already exists, instead update the stock count of the existing