On Monday, August 25, 2003, at 03:26 PM, Dan Jones wrote:
[snip]
To make this a tad clearer, I have two tables: Title and Author.
Author
consists of the Author's name and an AuthorID. Title includes an
AuthorID from the Author table. Some of the Author's have been deleted
from the Author tab
On Sat, 2003-08-23 at 22:19, Rajesh Kumar wrote:
> Dan Jones unknowingly asked us:
>
> > UPDATE table1 SET table2ID = NULL WHERE table1.table2ID NOT FOUND IN
> > table2.ID;
> >
> > The NOT FOUND IN isn't SQL, of course, but I'm not sure what should go
> > there.
>
> In MySql, its 'NOT IN'
>
> a
Dan Jones <[EMAIL PROTECTED]> wrote:
> How do I update a table to remove orphaned references to a second
> table? I've deleted rows in the second table, which has a unique
> auto_increment key. The first table now has references to keys that no
> longer exist. I need to update the first table, s
Dan Jones unknowingly asked us:
UPDATE table1 SET table2ID = NULL WHERE table1.table2ID NOT FOUND IN
table2.ID;
The NOT FOUND IN isn't SQL, of course, but I'm not sure what should go
there.
In MySql, its 'NOT IN'
and not
'NOT FOUND IN'.
To delete all references, you need to set up a Trigger.
O
How do I update a table to remove orphaned references to a second
table? I've deleted rows in the second table, which has a unique
auto_increment key. The first table now has references to keys that no
longer exist. I need to update the first table, setting the value to
NULL where the referenced
