Yes, but you can enforce a PK constraint without a unique index. If you take
a look at the code, you'll see that my index is also nonunique.
Theoretically,
there shouldn't be much difference between non-unique indexes and bitmap
indexes. Practically, there is.
--
Mladen Gogala
Oracle DBA
> -----Original Message-----
> From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com] On
> Behalf Of Khedr, Waleed
> Sent: Tuesday, September 23, 2003 5:50 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: possible to have a primary key with a bitmap indx?
>
>
> Restrictions on Unique Indexes
> You cannot specify both UNIQUE and BITMAP
>
> -----Original Message-----
> Sent: Tuesday, September 23, 2003 5:35 PM
> To: Multiple recipients of list ORACLE-L
>
>
> It's not possible:
>
>
>
> SQL> create bitmap index emp_empno_b on emp(empno);
>
> Index created.
>
> SQL> alter table emp add constraint emp_pk primary key(empno) using
> SQL> index
> emp_empno_b novalidate;
> alter table emp add constraint emp_pk primary key(empno)
> using index emp_empno_b novalidate
> *
> ERROR at line 1:
> ORA-01418: specified index does not exist
>
>
> SQL> drop index emp_empno_b;
>
> Index dropped.
>
> SQL> create index emp_empno_b on emp(empno);
>
> Index created.
>
> SQL> alter table emp add constraint emp_pk primary key(empno) using
> SQL> index
> emp_empno_b novalidate;
>
> Table altered.
>
> SQL>
>
> --
> Mladen Gogala
> Oracle DBA
>
>
>
> > -----Original Message-----
> > From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com] On
> > Behalf Of rgaffuri_at_cox.net
> > Sent: Tuesday, September 23, 2003 4:55 PM
> > To: Multiple recipients of list ORACLE-L
> > Subject: possible to have a primary key with a bitmap indx?
> >
> >
> > is it possible to have a primary key that is enforced with a
> > bitmap index?
> >
> > if so what is the syntax?
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > --
> > Author: <rgaffuri_at_cox.net
> > INET: rgaffuri_at_cox.net
> >
> > Fat City Network Services -- 858-538-5051 http://www.fatcity.com
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> Author: Mladen Gogala
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--
Author: Mladen Gogala
INET: mladen_at_wangtrading.com
Fat City Network Services -- 858-538-5051 http://www.fatcity.com
San Diego, California -- Mailing list and web hosting services
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Received on Tue Sep 23 2003 - 17:29:40 CDT
