Hello,
Example:
I have 100 rows that all have the field vaule of 'XYZ' I would like to
delete only 10 of those rows.
Is there such a query like "Delete 10 rows from table where table.field
= 'XYZ'"
Thanks,
Patrick 7 5671
>I have 100 rows that all have the field vaule of 'XYZ' I would like to delete only 10 of those rows.
Is there such a query like "Delete 10 rows from table where table.field = 'XYZ'"
Have you tried:
delete from table where table.field = 'XYZ' limit 10;
?
This is one of the reasons why a field:
id int not null auto_increment primary key
is useful. It guarantees you will be able to generate a query to just
delete what you want to delete.
Gordon L. Burditt
Hey thanks... that worked.
My table does have auto_inc, int primary key... How can I do my quiery
if the rows are not in consecutive order?
delete from table where table.id = '1' and table.id ='2' and table.id =
'10' etc....
Patrick pa************* *@gmail.com wrote: Hey thanks... that worked.
My table does have auto_inc, int primary key... How can I do my quiery if the rows are not in consecutive order?
delete from table where table.id = '1' and table.id ='2' and table.id = '10' etc....
delete from table where id in (select id from table where field='XYZ'
limit 10)
First time posting and may not be right, but that'd be where I'd start from.
Cheers,
Andy
> delete from table where id in (select id from table where field='XYZ' limit 10)
In theory that's right, but I think there's still a limitation in MySQL that
doesn't allow to use sub-selects in delete statements that refer to the same
table as the outer query. So I fear that this query will not work, yet.
Markus
>My table does have auto_inc, int primary key... How can I do my quiery if the rows are not in consecutive order?
delete from table where table.id = '1' and table.id ='2' and table.id = '10' etc....
There's also:
delete from table where table.id in (1, 2, 10, 86, 37, 666);
Gordon L. Burditt
Markus Popp wrote: delete from table where id in (select id from table where field='XYZ' limit 10)
In theory that's right, but I think there's still a limitation in MySQL that doesn't allow to use sub-selects in delete statements that refer to the same table as the outer query. So I fear that this query will not work, yet.
OK, well nice to know it should work in theory (do you know if it would
work in MySQL 5.0?).
More out of interest than anything else....
Cheers,
Andy
> OK, well nice to know it should work in theory (do you know if it would work in MySQL 5.0?).
Unfortunately not.
It might be possible to do it with a join - but it might be easier to choose
the
delete from table where id in (1, 4, 6, 8);
way.
Markus This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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