SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Index defaults 2


Index defaults 2

Author
Message
Hugo Kornelis
Hugo Kornelis
SSChampion
SSChampion (13K reputation)SSChampion (13K reputation)SSChampion (13K reputation)SSChampion (13K reputation)SSChampion (13K reputation)SSChampion (13K reputation)SSChampion (13K reputation)SSChampion (13K reputation)

Group: General Forum Members
Points: 13417 Visits: 12195
Comments posted to this topic are about the item Index defaults 2


Hugo Kornelis, SQL Server MVP
Visit my SQL Server blog: http://sqlblog.com/blogs/hugo_kornelis
Toby Harman
Toby Harman
SSC Eights!
SSC Eights! (827 reputation)SSC Eights! (827 reputation)SSC Eights! (827 reputation)SSC Eights! (827 reputation)SSC Eights! (827 reputation)SSC Eights! (827 reputation)SSC Eights! (827 reputation)SSC Eights! (827 reputation)

Group: General Forum Members
Points: 827 Visits: 668
You have two answers that are potentially correct here.

None, and None unless the rest of the command specifies one.

Shame I picked the wrong one!

Edit: I stand corrected. The CREATE INDEX has to be a separate command. Missed that.
bitbucket-25253
bitbucket-25253
SSCrazy Eights
SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)SSCrazy Eights (9.7K reputation)

Group: General Forum Members
Points: 9707 Visits: 25280
Nice question .. learned something

If everything seems to be going well, you have obviously overlooked something.

Ron

Please help us, help you -before posting a question please read

Before posting a performance problem please read
Revenant
Revenant
SSCrazy Eights
SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)SSCrazy Eights (8.8K reputation)

Group: General Forum Members
Points: 8823 Visits: 4922
Thanks, Hugo -- a nice one to end my day with!
vk-kirov
vk-kirov
Hall of Fame
Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)Hall of Fame (3.9K reputation)

Group: General Forum Members
Points: 3912 Visits: 4408
I can create an index by means of a unique constraint:

CREATE TABLE dbo.QotD
(KeyColumn int NOT NULL PRIMARY KEY,
RefColumn int NOT NULL,
-- More column definitions
CONSTRAINT FK_RefTab FOREIGN KEY (RefColumn)
REFERENCES dbo.RefTab(RefTabKey),
-- More constraints
CONSTRAINT UQ_RefColumn UNIQUE(RefColumn)
);


Doesn't it count as answer #2? :-)
Koen Verbeeck
Koen Verbeeck
SSC-Dedicated
SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)SSC-Dedicated (35K reputation)

Group: General Forum Members
Points: 35405 Visits: 13270
vk-kirov (6/26/2012)
I can create an index by means of a unique constraint:

CREATE TABLE dbo.QotD
(KeyColumn int NOT NULL PRIMARY KEY,
RefColumn int NOT NULL,
-- More column definitions
CONSTRAINT FK_RefTab FOREIGN KEY (RefColumn)
REFERENCES dbo.RefTab(RefTabKey),
-- More constraints
CONSTRAINT UQ_RefColumn UNIQUE(RefColumn)
);


Doesn't it count as answer #2? :-)


It's possible, but I doubt a 1-1 foreign key relationship is very useful :-D

I also took answer number 2. Forgot that you cannot specify an index directly in a create table statement. D'oh!


How to post forum questions.
Need an answer? No, you need a question.
What’s the deal with Excel & SSIS?
My blog at SQLKover.

MCSE Business Intelligence - Microsoft Data Platform MVP
Steve Hall
Steve Hall
Hall of Fame
Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)Hall of Fame (3.5K reputation)

Group: General Forum Members
Points: 3470 Visits: 11704
I also took answer number 2. Forgot that you cannot specify an index directly in a create table statement. D'oh!


Thanks - I was wondering why my answer was incorrect too. I thought it strange that Hugo might have made a mistake!

Steve Hall
Linkedin
Blog Site
paul s-306273
paul s-306273
SSCrazy
SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)

Group: General Forum Members
Points: 2814 Visits: 1135
Hugo - nice question.
Surprised only 15% have this correct so far...
Duncan Pryde
Duncan Pryde
Hall of Fame
Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)Hall of Fame (3.8K reputation)

Group: General Forum Members
Points: 3800 Visits: 1552
vk-kirov (6/26/2012)
I can create an index by means of a unique constraint:

CREATE TABLE dbo.QotD
(KeyColumn int NOT NULL PRIMARY KEY,
RefColumn int NOT NULL,
-- More column definitions
CONSTRAINT FK_RefTab FOREIGN KEY (RefColumn)
REFERENCES dbo.RefTab(RefTabKey),
-- More constraints
CONSTRAINT UQ_RefColumn UNIQUE(RefColumn)
);


Doesn't it count as answer #2? :-)


That's exactly what I thought - but then decided that given this was a question from Hugo Kornelis it wouldn't be that sneaky, so went for option 1.

Thanks for the question. ;-)
Toreador
Toreador
Hall of Fame
Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)Hall of Fame (3.2K reputation)

Group: General Forum Members
Points: 3154 Visits: 8088
vk-kirov (6/26/2012)
I can create an index by means of a unique constraint


That's exactly the basis on which I answered "None unless the rest of the statement creates one", which I therefore believe should be the correct answer. Particularly given that the previous "index defaults" question was about the possibility of a Unique constraint appearing later in the statement!
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search