Oracle-L: RE: Primary Key Constraints

From: Mercadante, Thomas F <NDATFM_at_labor.state.ny.us>
Date: Tue, 26 Nov 2002 12:38:51 -0800
Message-ID: <F001.0050C970.20021126123851@fatcity.com>

Mike,

How about:

select table_name from user_tables a
where not exists(select 1 from user_constraints b

                     where a.table_name = b.table_name
                     and   b.constraint_type = 'P');

Constraint_type values are:

P = Primary Key
C = Check Constraint
R = Referential Constraint (Foreign Key)
U = Unique Constraint

There might be others.

Hope this helps.

Tom Mercadante
Oracle Certified Professional

-----Original Message-----
Sent: Tuesday, November 26, 2002 2:25 PM To: Multiple recipients of list ORACLE-L

Is there an easy query to get a list of tables that don't have any primary key?

I've tried a couple of different ones, but none of them work quite right. Seems like this should be easy.

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Author: Mike Sardin
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Author: Mercadante, Thomas F
INET: NDATFM_at_labor.state.ny.us

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