Oracle-L: RE: last column in a table is added with a DEFAULT

From: Pardee, Roy E <roy.e.pardee_at_lmco.com>
Date: Fri, 08 Aug 2003 01:09:23 -0800
Message-ID: <F001.005C9917.20030808010923@fatcity.com>

It is impossible to add a NOT NULL column that *doesn't* have a DEFAULT to a table (unless the table is empty). The error you get is "ORA-01758: table must be empty to add mandatory (NOT NULL) column".

But that's a logical problem, not a bug. Is there any chance the dev is confusing this problem with something else?

Cheers,

-Roy

Roy Pardee
Programmer/Analyst/DBA
SWFPAC Lockheed Martin IT
Extension 8487
-----Original Message-----

Sent: Thursday, August 07, 2003 12:30 PM To: Multiple recipients of list ORACLE-L

See the test below:

YPD_OWNER_at_rex-SQL> create table t1 (c1 number);

Table created.

YPD_OWNER_at_rex-SQL> insert into t1 (c1) values (1);

1 row created.

YPD_OWNER_at_rex-SQL> insert into t1 (c1) values (2);

1 row created.

YPD_OWNER_at_rex-SQL> commit;

Commit complete.

YPD_OWNER_at_rex-SQL> select * from t1;

         1
         2

YPD_OWNER_at_rex-SQL> alter table t1 add (c2 number default 999);

Table altered.

YPD_OWNER_at_rex-SQL> select * from t1;

C1 C2
---------- ----------

         1        999
         2        999

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

Sent: Thursday, August 07, 2003 3:09 PM
To: Multiple recipients of list ORACLE-L

I understand that part. What the programmer is saying that you can not add the last column to a table with a default value. Does that sound reasonable? thanks, Raj.
David.
-----Original Message-----

Sent: Thursday, August 07, 2003 1:25 PM
To: Multiple recipients of list ORACLE-L

as soon as you add a column all depending code goes invalid, the dependency checking process doesn't discriminate about the default value. Raj

Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !

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

Sent: Thursday, August 07, 2003 1:09 PM To: Multiple recipients of list ORACLE-L

Has anybody ever heard of this? I have a developer saying this is an oracle bug. It caused some packages to go invalid.

"The error seems to be related to a bug in oracle caused when the last column in a table is added with a default." David Ehresmann
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Please see the official ORACLE-L FAQ: http://www.orafaq.net
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Author: Ehresmann, David
INET: David.Ehresmann_at_ps.net

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Author: Pardee, Roy E
INET: roy.e.pardee_at_lmco.com

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