Re: "ALTER SYNONYM"?

[Jim Conboy]

Can you use a view instead?   SVRMGR> create table temp1 (temp1 varchar2(1)); Statement processed. SVRMGR> create table temp2 (temp1 varchar2(1)); Statement processed. SVRMGR> insert into temp1 values ('a'); 1 row processed. SVRMGR> insert into temp1 values ('a'); 1 row processed. SVRMGR> insert into temp1 values ('a'); 1 row processed. SVRMGR> insert into temp1 values ('a'); 1 row processed. SVRMGR> insert into temp2 values ('b'); 1 row processed. SVRMGR> insert into temp2 values ('b'); 1 row processed. SVRMGR> insert into temp2 values ('b'); 1 row processed. SVRMGR> create or replace view temp as select * from temp1; Statement processed. SVRMGR> select * from temp; T - a a a a 4 rows selected. SVRMGR> create or replace view temp as select * from temp2; Statement processed. SVRMGR> select * from temp; T - b b b 3 rows selected. SVRMGR> Maybe some unwanted overhead with the view, but it might help out.   Jim   >>> [EMAIL PROTECTED] 06/30/01 04:56PM >>> Is there a way to do what would be an ALTER SYNONYM? I've got a synonym created that rotates between pointing to two different tables.  Sometimes it points to TABLE_A, sometimes to TABLE_B.  (This is so that behind the scenes, I can truncate and reload TABLE_A, and then swap, etc. so the table "never disappears".) However, when I want to switch the SYNONYM from pointing to TABLE_A to pointing to TABLE_B, the only way is to: drop synonym table_syn; create synonym table_syn for table_b; Is there a way to make that instantaneous for the database?  If someone does a select at the exact instant between those two commands, it'll error out, because the table "won't exist". -Rick +--------------------------------------------------------------------------+ |                 Rick Osterberg   [EMAIL PROTECTED]                | |         Database Applications Specialist     FAS Computer Services       | +--------------------------------------------------------------------------+ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rick Osterberg   INET: [EMAIL PROTECTED] Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051 San Diego, California        -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from).  You may also send the HELP command for other information (like subscribing).