Re: alter table

Hello Owen,

Wednesday, February 15, 2006, 8:31:17 PM, you wrote:
OJ> Note that prior to 8.0 PostgreSQL does not support multiple ALTER actions in a single query.  To get an equivalent
effect,wrap separate ALTER TABLE queries in a transaction:
 

OJ> BEGIN;
OJ> alter table xyz alter column id set default nextval('xyz_seq');
OJ> alter table xyz alter column foo set default '';
OJ> COMMIT;
OJ> Also, are you sure you want '' as a column default, and not ALTER COLUMN foo DROP DEFAULT?
OJ> -Owen

OK. THX. Second question:

First, maybe set many fields with the same action - ex. set default?

Ex. on mysql

ALTER TABLE proc MODIFY name char(64) DEFAULT '' NOT NULL,                MODIFY specific_name char(64) DEFAULT '' NOT
NULL,               MODIFY sql_data_access                       enum('CONTAINS_SQL',
'NO_SQL',                           'READS_SQL_DATA',                            'MODIFIES_SQL_DATA'
      ) DEFAULT 'CONTAINS_SQL' NOT NULL....
 


Second, can i modify more than 1 option with alter table on one field?:

ex (mysql):
ALTER TABLE proc MODIFY name varchar(64) DEFAULT '' NOT NULL;


-- 
Best regards,Maciej                            mailto:piechcio@isb.com.pl