Is locking not necessary on BDB tables? Does transaction support get rid of
the need for table locking?
thanks,
-Seth
>On Thu, May 17, 2001 at 12:35:09PM -0400, Seth Hall wrote:
>>
>> Hi, could someone point me to a tutorial on when to do table locking
>> with the BDB tables in MySQL?
>
>Why?
>
>> I'm running version 3.23.37 on RH7.0 (with BDB tables :) and if I
>> attempt to do locking within a transaction, the transaction is
>> automatically committed leaving me with non-working transaction
>> code. So, what I'm wondering is do I even need to lock the
>> tables(I'm doing inserts and updates)? If I do, have there been any
>> bugs with locking inside transactions?
>>
>> BTW, if I don't do the table write locking the code works fine.
>>
>> this works....
>> ========
>> begin work;
>> insert into Table (field1, field2) VALUES (2,'hi');
>> rollback;
>> ========
>>
>> this doesn't....it's committed anyway
>> ========
>> begin work;
>> lock tables Table write;
>> insert into Table (field1, field2) VALUES (2,'hi');
>> unlock tables;
>> rollback;
>> ========
>
>Why is the lock necessary at all?
>
>Jeremy
>--
>Jeremy D. Zawodny, <[EMAIL PROTECTED]>
>Technical Yahoo - Yahoo Finance
>Desk: (408) 349-7878 Fax: (408) 349-5454 Cell: (408) 439-9951
>
>MySQL 3.23.29: up 5 days, processed 35,049,645 queries (79/sec. avg)
---------------------------------------------------------------------
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail <[EMAIL PROTECTED]>
To unsubscribe, e-mail <[EMAIL PROTECTED]>
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
