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index & constraint [message #388461]

Tue, 24 February 2009 23:12

rajasekhar857
Messages: 500
Registered: December 2008

Senior Member

hi,
can index name and constraint name can be same?is there any wrong in specifying the same?

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Re: index & constraint [message #388462 is a reply to message #388461]

Tue, 24 February 2009 23:14

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

When are you going to start following Posting Guidelines?
http://www.orafaq.com/forum/t/88153/0/

>can index name and constraint name can be same?
What do your tests show you?

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Re: index & constraint [message #388463 is a reply to message #388462]

Tue, 24 February 2009 23:16

rajasekhar857
Messages: 500
Registered: December 2008

Senior Member

i am using a constraint like this

ALTER TABLE EMRPREVENTIVESCODESLKUP ADD (
CONSTRAINT PK_EMRPREVENTIVESCODESLKUP
PRIMARY KEY
(PREVENTIVE_SCODES_ID))
/

and giving index like this

CREATE UNIQUE INDEX PK_EMRPREVENTIVESCODESLKUP ON EMRPREVENTIVESCODESLKUP
(PREVENTIVE_SCODES_ID)
/

that is what i am asking

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Re: index & constraint [message #388464 is a reply to message #388461]

Tue, 24 February 2009 23:16

aviva4500
Messages: 122
Registered: July 2008
Location: bangalore

Senior Member

@Rajasekar,
My recommend would be,you can place different names.

Regards,
Hammer

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Re: index & constraint [message #388466 is a reply to message #388464]

Tue, 24 February 2009 23:45

trivendra
Messages: 211
Registered: October 2007
Location: Phoenix

Senior Member

Question and answer in same post of your own

Quote:

ALTER TABLE EMRPREVENTIVESCODESLKUP ADD (
CONSTRAINT PK_EMRPREVENTIVESCODESLKUP
PRIMARY KEY
(PREVENTIVE_SCODES_ID))
/

and giving index like this

CREATE UNIQUE INDEX PK_EMRPREVENTIVESCODESLKUP ON EMRPREVENTIVESCODESLKUP
(PREVENTIVE_SCODES_ID)
/

Thanks
Trivendra

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Re: index & constraint [message #388574 is a reply to message #388463]

Wed, 25 February 2009 08:13

joy_division
Messages: 4963
Registered: February 2005
Location: East Coast USA

Senior Member

Why would you do something like this?

Creating a primary key would either create a unique index or use an already existing index. Oracle will not allow you to do this, which a simple test would have shown you.

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