Re: question about index
- From: David Aldridge <david@xxxxxxxxxxxxxxxxxx>
- To: TESTAJ3@xxxxxxxxxxxxxx, "Terrian, Thomas J Mr CTR DLA J6DIB" <Tom.Terrian.ctr@xxxxxxx>
- Date: Mon, 19 May 2008 13:49:33 -0700 (PDT)
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@xxxxxxxxxxxxxx" <TESTAJ3@xxxxxxxxxxxxxx>
To: "Terrian, Thomas J Mr CTR DLA J6DIB" <Tom.Terrian.ctr@xxxxxxx>
Cc: oracle-l@xxxxxxxxxxxxx
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@xxxxxxx>
05/19/2008 02:39 PM From"Terrian, Thomas J Mr CTR DLA J6DIB"
<Tom.Terrian.ctr@xxxxxxx>
To<TESTAJ3@xxxxxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
cc
SubjectRE: question about index
Function based index......but I am not sure how you would use it.
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of
TESTAJ3@xxxxxxxxxxxxxx
Sent: Monday, May 19, 2008 1:55 PM
To: oracle-l@xxxxxxxxxxxxx
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
---------------------------------------
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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