B V, Phanisekhar <[EMAIL PROTECTED]> wrote:
Assume the database given below
mainTable (rowid INTEGER, puid INTEGER)
Assume main table be
Rowid Puid
1 2
2 3
3 4
4 6
5 7
6 8
"select rowid from mainTable where Puid = 2 OR puid = 8 OR puid = 7
OR puid = 3"
Will the result of the above query be (1, 6, 5, 2) or (1, 2, 5, 6)?
Why don't you try it and see for yourself?
Note that, without ORDER BY clause, the order of records is an
implementation detail you should not rely on. It may be (1, 6, 5, 2), or
(1, 2, 5, 6), or something else. If you want a particular order, specify
it explicitly.
Using which query we can get the result (1, 6, 5, 2)?
select rowid from mainTable where Puid in (2, 8, 7, 3)
order by (case Puid when 2 then 1 when 8 then 2 when 7 then 3 when 3
then 4 end);
Igor Tandetnik
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