Re: [SQL] Postgresql database

2010-05-14 Thread Little, Douglas
To do a better job, I’d need to see the data dictionary – eg to understand what capacity means. Is it the capacity of a model? Ok, but what about contact info for a model? Is this really the contact info of the plant? But this is what I’d do [cid:image002.png@01CAF33E.5FD30FB0] Mfg – design

Re: [SQL] Postgresql database

2010-05-14 Thread silly sad
On 05/14/10 13:28, Trinath Somanchi wrote: yes... But attribute of this table asl has an instance .. that two year of releases are possible also... I'm speaking of a very trivial case. it doesnt multiplies the multitude of table. it makes no problems with the "joins of ALL the tables" -- Sent

Re: [SQL] Postgresql database

2010-05-14 Thread Leif Biberg Kristensen
On Friday 14. May 2010 10.42.17 Trinath Somanchi wrote: > Hi All, [snipped] > This way the data in the table is tree structured. Also A single > manufacturer has all mode of vehicles. I'm in my way to design this DB for > use in PgSQL. But for a vast data, data retrieval is a very costly task > (Jo

Re: [SQL] Postgresql database

2010-05-14 Thread Trinath Somanchi
yes... But attribute of this table asl has an instance .. that two year of releases are possible also... I'm speaking of a very trivial case. On Fri, May 14, 2010 at 2:44 PM, silly sad wrote: > On 05/14/10 12:42, Trinath Somanchi wrote: > >> Hi All, >> >> I have Tree structured database to maint

Re: [SQL] Postgresql database

2010-05-14 Thread silly sad
On 05/14/10 12:42, Trinath Somanchi wrote: Hi All, I have Tree structured database to maintain. Its as follows. Vehicles u r talking about a single entity vehicles it is very common to represent a single entity with a single table and IF u also have to have an entity "class of vehicles" u r

[SQL] Postgresql database

2010-05-14 Thread Trinath Somanchi
Hi All, I have Tree structured database to maintain. Its as follows. Vehicles |__> Two Wheelers |__> Manufacturer |__> Name of Manufacturer |__> Year of make. |__> Manuf. Plant. |__> Model. |__> Model Name