Hi Martin,
The easiest way to restore context in this conversation is to go to the
MySQL home page (www.mysql.com), then go to "Community", then "Lists", then
to look at the archives of the main MySQL mailing list (this one).
I believe at this point that Chris and Stut answered my question
decisi
Dave is trying to establish an algorithm which would fit your requirement
I can see column q is auto-increment which makes sense as you retain the
capability to generate a unique row but jumping into the middle of a
conversation without knowing the prior discussionWhat is/was/will be the
purpos
David T. Ashley wrote:
Hi Chris,
OK, I will try that. Thanks for the help.
My assumption in reading your original post was that you didn't understand
what I wanted to do (but you did).
In order for me to use the solution you have proposed, in addition to
working, this behavior would have to
On 11/25/07, Chris W <[EMAIL PROTECTED]> wrote:
>
> Stut wrote:
> >
> > insert into test1 set p = 2, q = (select max(q) + 1 from test1 as tmp
> > where p = 2)
> >
> > Probably not very efficient, but it works.
> >
> > -Stut
> >
> Auto increment is much easier to do. If your primary key is made up
Stut wrote:
insert into test1 set p = 2, q = (select max(q) + 1 from test1 as tmp
where p = 2)
Probably not very efficient, but it works.
-Stut
Auto increment is much easier to do. If your primary key is made up of
two fields and one of them is Auto Increment, then it will have the
desir
David T. Ashley wrote:
On 11/25/07, Stut <[EMAIL PROTECTED]> wrote:
David T. Ashley wrote:
I have a table with two integer fields (call them p and q).
When I insert a record with a known p, I want to choose q to be one
larger
than the largest q with that p.
What is the best and most effici
On 11/25/07, Stut <[EMAIL PROTECTED]> wrote:
> David T. Ashley wrote:
> > I have a table with two integer fields (call them p and q).
> >
> > When I insert a record with a known p, I want to choose q to be one
> larger
> > than the largest q with that p.
> >
> > What is the best and most efficient
David T. Ashley wrote:
I have a table with two integer fields (call them p and q).
When I insert a record with a known p, I want to choose q to be one larger
than the largest q with that p.
What is the best and most efficient way to do this?
For example, let's say the table contains (p,q):
1,
David T. Ashley wrote:
I have a table with two integer fields (call them p and q).
When I insert a record with a known p, I want to choose q to be one larger
than the largest q with that p.
What is the best and most efficient way to do this?
For example, let's say the table contains (p,q):
I have a table with two integer fields (call them p and q).
When I insert a record with a known p, I want to choose q to be one larger
than the largest q with that p.
What is the best and most efficient way to do this?
For example, let's say the table contains (p,q):
1,1
1,2
1,3
2,1
2,2
2,3
2.4
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