Re: How to do? - Mailing list pgsql-general
From | Robert Partyka |
---|---|
Subject | Re: How to do? |
Date | |
Msg-id | 5.1.0.14.0.20030805135617.00a32ec0@mail.alpha.pl Whole thread Raw |
In response to | Re: How to do? (Ron Johnson <ron.l.johnson@cox.net>) |
Responses |
Re: How to do?
|
List | pgsql-general |
At 16:14 03-08-02 -0500, you wrote: >On Fri, 2003-08-01 at 11:44, Robert Partyka wrote: > > Ron Johnson wrote: > > > No, but slightly ambiguous, at least for my old brain. > > I will try to by more unequivocal this time :) > >So you want to pass query result sets between connections, so that >each subsequent connection can query the previous connection's >results? Rather i select result on one connection and pass identification information of one field to next connection. > > Shridhar Daithankar wrote: > > > select oid,name from a; > > I know it, but i have to have not oid's but row numbers :) such like : > > table "test" > > offset | value > > -----------+------------ > > 1 | AC43 > > 2 | AC4X > > 3 | AX43 > > 4 | ACX3 > > .... > > n | XC4A > > > > the best will be without using sequence :) > > > > Shridhar Daithankar wrote: > > > I didn't get that.. could you please elaborate? > > > > Franco Bruno Borghesi wrote: > > > And about the rows before and after that you ask, I don't understand... > > based on what you mean > > > *before* and *after*? you don't have an order by clause. > > > > > And what do you mean with "I know that in result is record with e.g. > > uid='AC13A1'"? > > > You know this uid *before* sending the query? is it part of your <where > > statement>? can you use > > > this value as a hard coded condition for a subquery? > > > > Ok, so its goes something like that: > > > > lets say i have select query: select a,b,uid from foo where c='bar' > order by a; > > > > with results like that: > > a | b | uid > > ----+----+------ > > 2 |x | AC01 > > 2 |w | AC43 > > 4 |d | AC88 > > 4 |a | AC13 > > ... > > 7 |c | AC22 > > > > > > and lets say I selected this before and I know that there is uid='AC88'; > > > > and in another connection (in lets say next requested www php script ) > > without selecting all > > this data or even full list of only uid`s and making sequence scan row by > > row I wont to get > > something like that from select I have write above: > > > > a | b | uid > > ----+----+------ > > 2 |w | AC43 > > 4 |d | AC88 > > 4 |a | AC13 > > (3 rows) > > > > if there is row before and row next of uid='AC88' or > > > > a | b | uid > > ----+----+------ > > 2 |w | AC43 > > 4 |d | AC88 > > (2 rows) > > if uid='AC88' is last one row > > > > or > > > > a | b | uid > > ----+----+------ > > 4 |d | AC88 > > 4 |a | AC13 > > (2 rows) > > if uid='AC88' is first row > > > > I hope its more understandable than before :) > > > > regards > > Robert 'BoBsoN' Partyka > >-- >+-----------------------------------------------------------------+ >| Ron Johnson, Jr. Home: ron.l.johnson@cox.net | >| Jefferson, LA USA | >| | >| "I'm not a vegetarian because I love animals, I'm a vegetarian | >| because I hate vegetables!" | >| unknown | >+-----------------------------------------------------------------+ > > > >---------------------------(end of broadcast)--------------------------- >TIP 4: Don't 'kill -9' the postmaster
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