Mark Forums Read

Domain for numbers.

Go Back

comp.databases.theory comp.databases.theory

Reply

Page 1 of 5

1

#1

Old

Naga lenoj

Posts: n/a

Domain for numbers. - 01-17-2008 , 06:20 AM

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Reply With Quote

#2

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#3

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#4

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#5

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#6

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#7

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#8

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#9

Old

Brian Selzer

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 06:59 AM

"Naga lenoj" <nagalenoj (AT) gmail (DOT) com> wrote

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

Haven't you heard of a check constraint?

Reply With Quote

#10

Old

Bob Badour

Posts: n/a

Re: Domain for numbers. - 01-17-2008 , 07:45 AM

Naga lenoj wrote:

Quote:

Actually, i have a need to store the numbers like "AS2303",
TS3381"(first 2 alphabets,next 3 numbers). What i want is, i have to
assign the integrity which can check the following values,
23334, ASDER, SDE23, 233A4 and like this.
If i assign as a character type domain.Then i can't check the above
cases.
Can anyone help me?
I am using postgresql(for your information).

If I recall correctly, postgresql has some support for regular expressions:
http://www.postgresql.org/docs/8.1/s...-matching.html

Does it support general constraints with a CHECK keyword? Yes it does:
http://www.postgresql.org/docs/8.1/s...nstraints.html

Reply With Quote

Reply

Page 1 of 5

1

« Previous Thread | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off

Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.