PLEASE do not top-post after you got a reply
at the bottom of your quote
sorry, but i can not help you with your application
if it for whatever reason uses the filed 'id' in a where-statement
and your table has no key on this column your table-design is
wrong and you have to add the key
yes this hurts in hughe tables but this is the price not looking at the
table-design at the very first begin of a project
Am 04.11.2011 11:00, schrieb Ananda Kumar:
> Create PROCEDURE qrtz_purge() BEGIN
> declare l_id bigint(20);
> declare NO_DATA INT DEFAULT 0;
> DECLARE LST_CUR CURSOR FOR select id from table_name where id> 123;
> DECLARE CONTINUE HANDLER FOR NOT FOUND SET NO_DATA = -1;
> OPEN LST_CUR;
> SET NO_DATA = 0;
> FETCH LST_CUR INTO l_id;
> WHILE NO_DATA = 0 DO
> Delete from table_name where id=l_id
> COMMIT;
> SET NO_DATA = 0;
> FETCH LST_CUR INTO l_id;
> END WHILE;
> CLOSE LST_CUR;
> END
>
> On Fri, Nov 4, 2011 at 2:40 PM, Reindl Harald <h.reindl@stripped>wrote:
>
>> Am 04.11.2011 08:22, schrieb Adarsh Sharma:
>>> delete from metadata where id>2474;
>>> but it takes hours to complete.
>>>
>>> CREATE TABLE `metadata` (
>>> `meta_id` bigint(20) NOT NULL AUTO_INCREMENT,
>>> `id` bigint(20) DEFAULT NULL,
>>> `url` varchar(800) DEFAULT NULL,
>>> `meta_field` varchar(200) DEFAULT NULL,
>>> `meta_value` varchar(2000) DEFAULT NULL,
>>> `dt_stamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
>>> PRIMARY KEY (`meta_id`)
>>> ) ENGINE=InnoDB AUTO_INCREMENT=388780373 ;
>>>
>>> Please let me know any quickest way to do this.
>>> I tried to create indexes in these tables on id, but this too takes time
>>
>> well i guess you have to sit out add the key
>> wrong table design having an id-column without a key or
>> something weird in the application not using the primary
>> key for such operations
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