Thread: populate value of column
I have a table
CREATE TABLE meter
( meter_id integer NOT NULL, area_no integer NOT NULL, CONSTRAINT meter_pkey PRIMARY KEY (meter_id)
) ;
INSERT INTO meter(meter_id, no_of_bays) VALUES (1001, 4);
INSERT INTO meter(meter_id, no_of_bays) VALUES (1012, 6);
select meter_id, area_no from meter;
meter_id | no_of_bays
----------+------------ 1001 | 4 1012 | 6
How can I generate the following result?
meter_id | bay
----------+------------ 1001 | 01 1001 | 02 1001 | 03 1001 | 04 1012 |
01 1012 | 02 1012 | 03 1012 | 04 1012 | 05 1012 | 06
-----Original Message----- From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] On Behalf Of novice Sent: Wednesday, 8 August 2007 15:31 To: pgsql-sql@postgresql.org Subject: [SQL] populate value of column > How can I generate the following result? > > meter_id | bay > ----------+------------ > 1001 | 01 > 1001 | 02 > 1001 | 03 > 1001 | 04 > 1012 | 01 > 1012 | 02 > 1012 | 03 > 1012 | 04 > 1012 | 05 > 1012 | 06 I even tested this one too ;)SELECT meter_id, LPAD(GENERATE_SERIES(1,area_no),2,'0')FROM meter; Works on 8.2.4 - you didn't say what version you were using. *******************Confidentiality and Privilege Notice******************* The material contained in this message is privileged and confidential to the addressee. If you are not the addressee indicated in this message or responsible for delivery of the message to such person, you may not copy or deliver this message to anyone, and you should destroy it and kindly notify the sender by reply email. Information in this message that does not relate to the official business of Weatherbeeta must be treated as neither given nor endorsed by Weatherbeeta. Weatherbeeta, its employees, contractors or associates shall not be liable for direct, indirect or consequential loss arising from transmission of this message or any attachments THINK BEFORE YOU PRINT - Save paper if you don't really need to print this e-mail.
On Aug 8, 2007, at 0:30 , novice wrote: > CREATE TABLE meter > ( > meter_id integer NOT NULL, > area_no integer NOT NULL, > CONSTRAINT meter_pkey PRIMARY KEY (meter_id) > ) ; > > INSERT INTO meter(meter_id, no_of_bays) VALUES (1001, 4); > INSERT INTO meter(meter_id, no_of_bays) VALUES (1012, 6); Your insert columns don't match your table. > How can I generate the following result? > > meter_id | bay > ----------+------------ > 1001 | 01 Your column headers don't match your table definition *or* your insert statements. I'm not sure what you're trying to do. Can you explain the result you want? (And in the future, please post actual DDL and statements.) Michael Glaesemann grzm seespotcode net
Thank you :-)) That's so quick! Apologies for the error on my DDL statement On 08/08/07, Phillip Smith <phillip.smith@weatherbeeta.com.au> wrote: > -----Original Message----- > From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] > On Behalf Of novice > Sent: Wednesday, 8 August 2007 15:31 > To: pgsql-sql@postgresql.org > Subject: [SQL] populate value of column > > > How can I generate the following result? > > > > meter_id | bay > > ----------+------------ > > 1001 | 01 > > 1001 | 02 > > 1001 | 03 > > 1001 | 04 > > 1012 | 01 > > 1012 | 02 > > 1012 | 03 > > 1012 | 04 > > 1012 | 05 > > 1012 | 06 > > I even tested this one too ;) > SELECT meter_id, > LPAD(GENERATE_SERIES(1,area_no),2,'0') > FROM meter; > > Works on 8.2.4 - you didn't say what version you were using. > > > *******************Confidentiality and Privilege Notice******************* > > The material contained in this message is privileged and confidential to > the addressee. If you are not the addressee indicated in this message or > responsible for delivery of the message to such person, you may not copy > or deliver this message to anyone, and you should destroy it and kindly > notify the sender by reply email. > > Information in this message that does not relate to the official business > of Weatherbeeta must be treated as neither given nor endorsed by Weatherbeeta. > Weatherbeeta, its employees, contractors or associates shall not be liable > for direct, indirect or consequential loss arising from transmission of this > message or any attachments > > THINK BEFORE YOU PRINT - Save paper if you don't really need to print this > e-mail. > > ---------------------------(end of broadcast)--------------------------- > TIP 9: In versions below 8.0, the planner will ignore your desire to > choose an index scan if your joining column's datatypes do not > match >
I believe they are standard PostgreSQL functions not sure what version they appeared in though. I learnt about them by RTM Cheers, ~p -----Original Message----- From: Ronald Rojas [mailto:ronald.rojas@gmail.com] Sent: Tuesday, 14 August 2007 18:00 To: Phillip Smith Subject: Re: [SQL] populate value of column Hi philipp, How do i get those built-in function like LPAD, GENERATE_SERIES in postgresql? is there a query where I can list down those? Thanks in advance. Ronald On Wed, 2007-08-08 at 15:37 +1000, Phillip Smith wrote: -----Original Message----- From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] On Behalf Of novice Sent: Wednesday, 8 August 2007 15:31 To: pgsql-sql@postgresql.org Subject: [SQL] populate value of column > How can I generate the following result? > > meter_id | bay > ----------+------------ > 1001 | 01 > 1001 | 02 > 1001 | 03 > 1001 | 04 > 1012 | 01 > 1012 | 02 > 1012 | 03 > 1012 | 04 > 1012 | 05 > 1012 | 06 I even tested this one too ;)SELECT meter_id, LPAD(GENERATE_SERIES(1,area_no),2,'0')FROM meter; Works on 8.2.4 - you didn't say what version you were using. *******************Confidentiality and Privilege Notice******************* The material contained in this message is privileged and confidential to the addressee. If you are not the addressee indicated in this message or responsible for delivery of the message to such person, you may not copy or deliver this message to anyone, and you should destroy it and kindly notify the sender by reply email. Information in this message that does not relate to the official business of Weatherbeeta must be treated as neither given nor endorsed by Weatherbeeta. Weatherbeeta, its employees, contractors or associates shall not be liable for direct, indirect or consequential loss arising from transmission of this message or any attachments THINK BEFORE YOU PRINT - Save paper if you don't really need to print this e-mail. ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypesdo not match ============================================================================ ====================== Ronald Rojas Systems Administrator Linux Registered User #427229 ============================================================================ ====================== MSDOS didn't get as bad as it is overnight -- it took over ten years of careful development. -- dmeggins@aix1.uottawa.ca THINK BEFORE YOU PRINT - Save paper if you don't really need to print this *******************Confidentiality and Privilege Notice******************* The material contained in this message is privileged and confidential to the addressee. If you are not the addressee indicated in this message or responsible for delivery of the message to such person, you may not copy or deliver this message to anyone, and you should destroy it and kindly notify the sender by reply email. Information in this message that does not relate to the official business of Weatherbeeta must be treated as neither given nor endorsed by Weatherbeeta. Weatherbeeta, its employees, contractors or associates shall not be liable for direct, indirect or consequential loss arising from transmission of this message or any attachments e-mail.