Re: question about index

From: David Aldridge <david_at_david-aldridge.com>
Date: Mon, 19 May 2008 13:49:33 -0700 (PDT)
Message-ID: <95605.57729.qm@web806.biz.mail.mud.yahoo.com>

It's just an index built on the literal string 'X1' -- yes, very odd. Developer got wrong index-creation syntax and forgot to drop it afterwards?

• Original Message ---- From: "TESTAJ3_at_nationwide.com" <TESTAJ3_at_nationwide.com> To: "Terrian, Thomas J Mr CTR DLA J6DIB" <Tom.Terrian.ctr_at_dla.mil> Cc: oracle-l_at_freelists.org Sent: Monday, May 19, 2008 2:40:49 PM Subject: RE: question about index

thats what was confusing me, if it had a function involved, i'd understand but this just seems stupid to me :)

joe

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You can have it: Fast, Right or Cheap, pick 2 of the 3. Fast + Right is Expensive
Fast + Cheap will be incorrect.
Right + Cheap will take a while.

"Terrian, Thomas J Mr CTR DLA J6DIB" <Tom.Terrian.ctr_at_dla.mil>   

05/19/2008 02:39 PM From"Terrian, Thomas J Mr CTR DLA J6DIB" <Tom.Terrian.ctr_at_dla.mil> To<TESTAJ3_at_nationwide.com>, <oracle-l_at_freelists.org> cc
SubjectRE: question about index

Function based index......but I am not sure how you would use it.

-----Original Message-----

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of TESTAJ3_at_nationwide.com
Sent: Monday, May 19, 2008 1:55 PM
To: oracle-l_at_freelists.org
Subject: question about index

Ok i guess i'm having a brain fart, someone asked me about this and for the life of me i can't figure it out. The 2nd index, what exactly is it doing with single quotes around the column name??

SQL> create table z1(x1 number, x2 date);

Table created.

SQL> CREATE INDEX X1 ON Z1 (X1); Index created.

SQL> CREATE INDEX X2 ON Z1 ('X1'); Index created.

Thanks, Joe

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You can have it: Fast, Right or Cheap, pick 2 of the 3. Fast + Right is Expensive
Fast + Cheap will be incorrect.
Right + Cheap will take a while.

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Received on Mon May 19 2008 - 15:49:33 CDT