[PERFORM] Sql result b where condition
Hi all, I have a table emp. using where condition can i get the result prioritized. Take the example below. select ENAME,ORIG_SALARY from employee where (ename='Tom' and orig_salary=2413)or(orig_salary=1234 ) if the fist condition(ename='Tom' and orig_salary=2413) is satified then 10 rows will be returned, for the second condition (orig_salary=1234 ) there are 20 rows will be returned. The order of display should be The first 10 rows then next 20 rows. Thanks Regards, Ram -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
Re: [PERFORM] Sql result b where condition
In response to ramasubramanian : Please, create a new mail for a new topic and don't hijack other threads. Hi all, I have a table emp. using where condition can i get the result prioritized. Take the example below. select ENAME,ORIG_SALARY from employee where (ename='Tom' and orig_salary=2413)or(orig_salary=1234 ) if the fist condition(ename='Tom' and orig_salary=2413) is satified then 10 rows will be returned, for the second condition (orig_salary=1234 ) there are 20 rows will be returned. The order of display should be The first 10 rows then next 20 rows. Thanks Regards, Ram For instance: select ENAME,ORIG_SALARY, 1 as my_order from employee where (ename='Tom' and orig_salary=2413) union all select ENAME,ORIG_SALARY, 2 employee where (orig_salary=1234 ) order by my_order. other solution (untested): select ENAME,ORIG_SALARY, case when (ename='Tom' and orig_salary=2413) then 1 else 2 end as my_order from employee where (ename='Tom' and orig_salary=2413)or(orig_salary=1234 ) order by my_order; Regards, Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: - Header) GnuPG: 0x31720C99, 1006 CCB4 A326 1D42 6431 2EB0 389D 1DC2 3172 0C99 -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
Re: [PERFORM] Sql result b where condition
On Mon, 25 Jan 2010, A. Kretschmer wrote: In response to ramasubramanian : Please, create a new mail for a new topic and don't hijack other threads. Even more so - this isn't probably the right mailing list for generic sql help questions. select ENAME,ORIG_SALARY from employee where (ename='Tom' and orig_salary=2413)or(orig_salary=1234 ) if the fist condition(ename='Tom' and orig_salary=2413) is satified then 10 rows will be returned, for the second condition (orig_salary=1234 ) there are 20 rows will be returned. The order of display should be The first 10 rows then next 20 rows. select ENAME,ORIG_SALARY, 1 as my_order from employee where (ename='Tom' and orig_salary=2413) union all select ENAME,ORIG_SALARY, 2 employee where (orig_salary=1234 ) order by my_order. Or just: select ENAME,ORIG_SALARY from employee where (ename='Tom' and orig_salary=2413)or(orig_salary=1234 ) ORDER BY orig_salary DESC as there is going to be only two values for orig_salary. Matthew -- The early bird gets the worm. If you want something else for breakfast, get up later. -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
Re: [PERFORM] Sql result b where condition
In response to Matthew Wakeling : On Mon, 25 Jan 2010, A. Kretschmer wrote: In response to ramasubramanian : Please, create a new mail for a new topic and don't hijack other threads. Even more so - this isn't probably the right mailing list for generic sql help questions. ACK. select ENAME,ORIG_SALARY, 1 as my_order from employee where (ename='Tom' and orig_salary=2413) union all select ENAME,ORIG_SALARY, 2 employee where (orig_salary=1234 ) order by my_order. Or just: select ENAME,ORIG_SALARY from employee where (ename='Tom' and orig_salary=2413)or(orig_salary=1234 ) ORDER BY orig_salary DESC as there is going to be only two values for orig_salary. hehe, yes, overseen that fact ;-) Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: - Header) GnuPG: 0x31720C99, 1006 CCB4 A326 1D42 6431 2EB0 389D 1DC2 3172 0C99 -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
