Comments on: Unique constraint on MS SQL?! http://blog.cincura.net/230837-unique-constraint-on-ms-sql/ Taking something that can't be done, and then doing it. Tue, 07 Sep 2010 14:25:21 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: cincura.net http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2023 cincura.net Thu, 01 Oct 2009 19:08:52 +0000 http://blog.cincura.net/?p=230837#comment-2023 Even with set ansi_nulls on; it doesn't work for me. Same error. Looking into BOL, it doesn't say anything about the unique and nulls, only the nulls comparison in queries etc. (although it's related). Even with set ansi_nulls on; it doesn’t work for me. Same error.

Looking into BOL, it doesn’t say anything about the unique and nulls, only the nulls comparison in queries etc. (although it’s related).

]]> By: pmezard http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2020 pmezard Wed, 30 Sep 2009 11:18:16 +0000 http://blog.cincura.net/?p=230837#comment-2020 Start with: """ set ansi_nulls on go """ Start with:

“”"
set ansi_nulls on
go
“”"

]]> By: cincura.net http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2012 cincura.net Sat, 26 Sep 2009 21:13:01 +0000 http://blog.cincura.net/?p=230837#comment-2012 No nemam primo specifikaci pred sebou. Ale vzhledem k tomu, jak je definovana logika na NULL hodnotach a ze se tak chova Firebird, Oracle i jsem to tak nejak ocekaval ;) a je to i reportovano, tak bych si porad dovolil tvrdit, ze unique constraint by mel povolovat vice NULL hodnot, ale pouze jednu not-NULL. Lec muzu se mylit. No nemam primo specifikaci pred sebou. Ale vzhledem k tomu, jak je definovana logika na NULL hodnotach a ze se tak chova Firebird, Oracle i jsem to tak nejak ocekaval ;) a je to i reportovano, tak bych si porad dovolil tvrdit, ze unique constraint by mel povolovat vice NULL hodnot, ale pouze jednu not-NULL. Lec muzu se mylit.

]]> By: Michal Neuwirth http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2011 Michal Neuwirth Sat, 26 Sep 2009 20:37:07 +0000 http://blog.cincura.net/?p=230837#comment-2011 Jestli se nepletu tak se takto SQL chova minimalne od verze 7. A myslim si, ze ANSI SQL to tak i definuje. Jestli se nepletu tak se takto SQL chova minimalne od verze 7. A myslim si, ze ANSI SQL to tak i definuje.

]]> By: Twitted by rohant http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2010 Twitted by rohant Sat, 26 Sep 2009 17:37:24 +0000 http://blog.cincura.net/?p=230837#comment-2010 [...] This post was Twitted by rohant [...] [...] This post was Twitted by rohant [...]

]]> By: Twitted by mssqlserver http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2009 Twitted by mssqlserver Sat, 26 Sep 2009 17:35:34 +0000 http://blog.cincura.net/?p=230837#comment-2009 [...] This post was Twitted by mssqlserver [...] [...] This post was Twitted by mssqlserver [...]

]]> By: Tweets that mention Unique constraint on MS SQL?! « Jiří {x2} Činčura -- Topsy.com http://blog.cincura.net/230837-unique-constraint-on-ms-sql/#comment-2008 Tweets that mention Unique constraint on MS SQL?! « Jiří {x2} Činčura -- Topsy.com Sat, 26 Sep 2009 17:33:44 +0000 http://blog.cincura.net/?p=230837#comment-2008 [...] This post was mentioned on Twitter by mssqlserver. mssqlserver said: Unique constraint on MS SQL?! « Jiří {x2} Činčura http://bit.ly/2aZDRJ [...] [...] This post was mentioned on Twitter by mssqlserver. mssqlserver said: Unique constraint on MS SQL?! « Jiří {x2} Činčura http://bit.ly/2aZDRJ [...]

]]>