RE: Lock table and disallow select

FWIW - this locking scheme is different than some of Oracle's competition. in SQL Server & Sybase writes can block reads. even on those platforms locks should be at the block or row level, but can escalate to the entire table. but reads do wait for writes to complete. at least it used to be that way.

so perhaps the solution for John's duhveloper is to use a different DBMS? ;)

-----Original Message-----
Sent: Friday, February 14, 2003 9:44 AM
To: Multiple recipients of list ORACLE-L

In Oracle writers do not block readers so even locking the table won't do it. You could rename the table and do your work on it under the new name.

Allan

-----Original Message-----
Sent: Friday, February 14, 2003 9:04 AM
To: Multiple recipients of list ORACLE-L

Query from user. can the following be done in PL/SQL?

> I need to be able to lock a table in such a way that not only can no
> other session alter any records in the table, but they cannot read the

> table at all (i.e. do SELECTs on it) until I'm done with it.
>
> Any SELECT statements would pause until I release the lock.
>
> Is such a thing possible?

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