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Unsigned numbers 4+ messages / 3 participants [nested] [flat]
* Unsigned numbers @ 2003-11-25 11:11 Kaloyan Iliev Iliev <kaloyan@faith.digsys.bg> 0 siblings, 0 replies; 4+ messages in thread From: Kaloyan Iliev Iliev @ 2003-11-25 11:11 UTC (permalink / raw) To: pgsql-sql Hello Friends, I have the following questions. I have a lot of fields in my database that are int or float. The problem is that I need them to be only positive (unsigned) and the users try to insert sometimes negative. I know that I can make this with CHECK CONSTRAINT but for some reasons this is not a good solution for me. The reason is that when I have a check constraint on a certain field and someone try to insert negative number the error message contains the name of the constraint and the name of the table but not the name of the field. So on higher level I can't send a proper message to the user. Are there any unsigned data types like unsigned int or unsigned float. Can I make a domain or something like that (How exactly to add constraint to domain). I am using v7.3.2. Thanks! ^ permalink raw reply [nested|flat] 4+ messages in thread
* Unsigned numbers @ 2003-11-26 11:10 Kaloyan Iliev Iliev <news1@faith.digsys.bg> 2003-11-26 11:46 ` Re: Unsigned numbers Richard Huxton <dev@archonet.com> 0 siblings, 1 reply; 4+ messages in thread From: Kaloyan Iliev Iliev @ 2003-11-26 11:10 UTC (permalink / raw) To: pgsql-sql Hello Friends, I have the following questions. I have a lot of fields in my database that are int or float. The problem is that I need them to be only positive (unsigned) and the users try to insert sometimes negative. I know that I can make this with CHECK CONSTRAINT but for some reasons this is not a good solution for me. The reason is that when I have a check constraint on a certain field and someone try to insert negative number the error message contains the name of the constraint and the name of the table but not the name of the field. So on higher level I can't send a proper message to the user. Are there any unsigned data types like unsigned int or unsigned float. Can I make a domain or something like that (How exactly to add constraint to domain). I am using v7.3.2. Thanks! ^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Unsigned numbers 2003-11-26 11:10 Unsigned numbers Kaloyan Iliev Iliev <news1@faith.digsys.bg> @ 2003-11-26 11:46 ` Richard Huxton <dev@archonet.com> 0 siblings, 0 replies; 4+ messages in thread From: Richard Huxton @ 2003-11-26 11:46 UTC (permalink / raw) To: Kaloyan Iliev Iliev <news1@faith.digsys.bg>; pgsql-sql On Wednesday 26 November 2003 11:10, Kaloyan Iliev Iliev wrote: > Hello Friends, > > I have the following questions. > I have a lot of fields in my database that are int or float. > The problem is that I need them to be only positive (unsigned) and the > users try to insert sometimes negative. [snip - problem is that errors give constraint name] > Are there any unsigned data types like unsigned int or unsigned float. > Can I make a domain or something like that (How exactly to add > constraint to domain). > I am using v7.3.2. Adding CHECKs to domains is new for 7.4, I believe. There aren't any built-in unsigned types, although in theory you could write your own. What I do is format my constraint names in a known way. So, a check on table foo, column bar might be called "foo_bar_positive" - then I can get the information I want from the constraint name. -- Richard Huxton Archonet Ltd ^ permalink raw reply [nested|flat] 4+ messages in thread
* Unsigned numbers @ 2003-11-27 08:01 Kaloyan Iliev Iliev <news1@faith.digsys.bg> 0 siblings, 0 replies; 4+ messages in thread From: Kaloyan Iliev Iliev @ 2003-11-27 08:01 UTC (permalink / raw) To: pgsql-sql 10x you all ^ permalink raw reply [nested|flat] 4+ messages in thread
end of thread, other threads:[~2003-11-27 08:01 UTC | newest] Thread overview: 4+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2003-11-25 11:11 Unsigned numbers Kaloyan Iliev Iliev <kaloyan@faith.digsys.bg> 2003-11-26 11:10 Unsigned numbers Kaloyan Iliev Iliev <news1@faith.digsys.bg> 2003-11-26 11:46 ` Richard Huxton <dev@archonet.com> 2003-11-27 08:01 Unsigned numbers Kaloyan Iliev Iliev <news1@faith.digsys.bg>
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