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Thread: list non alphanumeric

list non alphanumeric

From
"Baboo, Isa"
Date:

Hi

 

 

Firstly let me mention I am a noob to postgres,DB and sql anyway, I have a column with First names and need to list names that have non-alphanumeric characters in them like + or * and the list goes on.  I did google a bit and tried:

select * from TABLE where first_name not like '%[a-z0-9]%';

 

However the above shows all the entries in that column and if I change it to Like, which should show all the entries it shows nothing.

 

e.g of my goal:

 

Column

Bob

Jane+

Harry*

John

Mike

Larry

 

My query should output

 

Jane+

Harry*

 

 

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Re: list non alphanumeric

From
John R Pierce
Date:
On 4/11/2013 11:23 PM, Baboo, Isa wrote:

Firstly let me mention I am a noob to postgres,DB and sql anyway, I have a column with First names and need to list names that have non-alphanumeric characters in them like + or * and the list goes on.  I did google a bit and tried:

select * from TABLE where first_name not like '%[a-z0-9]%';


you'll probably have to use a regex for that.

something like...  (my regex is really rusty)

       ... WHERE first_name !~ '^[a-z0-9]*$';



-- 
john r pierce                                      37N 122W
somewhere on the middle of the left coast

Re: list non alphanumeric

From
"Baboo, Isa"
Date:

Hi

 

Thanks for the response but I tried that and it does not work here is an example of names which still display.

 

test

sadadds

Hillary

BEN NAME

ALAN MCGARVEY +

 

 

From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of John R Pierce
Sent: 12 April 2013 08:41 AM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] list non alphanumeric

 

On 4/11/2013 11:23 PM, Baboo, Isa wrote:

Firstly let me mention I am a noob to postgres,DB and sql anyway, I have a column with First names and need to list names that have non-alphanumeric characters in them like + or * and the list goes on.  I did google a bit and tried:

select * from TABLE where first_name not like '%[a-z0-9]%';


you'll probably have to use a regex for that.

something like...  (my regex is really rusty)

       ... WHERE first_name !~ '^[a-z0-9]*$';




-- 
john r pierce                                      37N 122W
somewhere on the middle of the left coast

To read FirstRand Bank's Disclaimer for this email click on the following address or copy into your Internet browser:
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Re: list non alphanumeric

From
Ian Lawrence Barwick
Date:
> From: pgsql-general-owner@postgresql.org
> [mailto:pgsql-general-owner@postgresql.org] On Behalf Of John R Pierce
> Sent: 12 April 2013 08:41 AM
> To: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] list non alphanumeric
>
>
>
> On 4/11/2013 11:23 PM, Baboo, Isa wrote:
>
> Firstly let me mention I am a noob to postgres,DB and sql anyway, I have a
> column with First names and need to list names that have non-alphanumeric
> characters in them like + or * and the list goes on.  I did google a bit and
> tried:
>
> select * from TABLE where first_name not like '%[a-z0-9]%';
>
>
> you'll probably have to use a regex for that.
>
> something like...  (my regex is really rusty)
>
>        ... WHERE first_name !~ '^[a-z0-9]*$';

2013/4/12 Baboo, Isa <IBaboo@fnb.co.za>:
>
> Hi
>
> Thanks for the response but I tried that and it does not work here is an
> example of names which still display.
>
> test
> sadadds
> Hillary
> BEN NAME
> ALAN MCGARVEY +

Something like:

... WHERE first_name ~ '[^\w]'

might do the trick.

Regards

Ian Barwick

Re: list non alphanumeric

From
John R Pierce
Date:
On 4/11/2013 11:50 PM, Baboo, Isa wrote:

Thanks for the response but I tried that and it does not work here is an example of names which still display.

 

test

sadadds

Hillary

BEN NAME

ALAN MCGARVEY +


well, at least one of those has a space inline, you didn't say that was acceptable, just a-z0-9
and of course, upper and lower case, so you probably should use [A-Za-z0-9 ]  (note the space before the close bracket)




-- 
john r pierce                                      37N 122W
somewhere on the middle of the left coast

Re: list non alphanumeric

From
"Baboo, Isa"
Date:
Hi

It still displaying everything, maybe it is the spaces?


test
sadadds
Hillary
BEN NAME
BOB
/+
...skipping
 ALAN MCGARVEY +

-----Original Message-----
From: Ian Lawrence Barwick [mailto:barwick@gmail.com] 
Sent: 12 April 2013 09:08 AM
To: Baboo, Isa
Cc: John R Pierce; pgsql-general@postgresql.org
Subject: Re: [GENERAL] list non alphanumeric

> From: pgsql-general-owner@postgresql.org
> [mailto:pgsql-general-owner@postgresql.org] On Behalf Of John R Pierce
> Sent: 12 April 2013 08:41 AM
> To: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] list non alphanumeric
>
>
>
> On 4/11/2013 11:23 PM, Baboo, Isa wrote:
>
> Firstly let me mention I am a noob to postgres,DB and sql anyway, I 
> have a column with First names and need to list names that have 
> non-alphanumeric characters in them like + or * and the list goes on.  
> I did google a bit and
> tried:
>
> select * from TABLE where first_name not like '%[a-z0-9]%';
>
>
> you'll probably have to use a regex for that.
>
> something like...  (my regex is really rusty)
>
>        ... WHERE first_name !~ '^[a-z0-9]*$';

2013/4/12 Baboo, Isa <IBaboo@fnb.co.za>:
>
> Hi
>
> Thanks for the response but I tried that and it does not work here is 
> an example of names which still display.
>
> test
> sadadds
> Hillary
> BEN NAME
> ALAN MCGARVEY +

Something like:

... WHERE first_name ~ '[^\w]'

might do the trick.

Regards

Ian Barwick

To read FirstRand Bank's Disclaimer for this email click on the following address or copy into your Internet browser: 
https://www.fnb.co.za/disclaimer.html 

If you are unable to access the Disclaimer, send a blank e-mail to
firstrandbankdisclaimer@fnb.co.za and we will send you a copy of the Disclaimer.

Re: list non alphanumeric

From
"Baboo, Isa"
Date:

Hi

 

Sorry guys I should have mention spaces, I did but it was a bit late. Anyway that [A-Za-z0-9 ]  worked  thanks John.

 

 

From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of John R Pierce
Sent: 12 April 2013 09:12 AM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] list non alphanumeric

 

On 4/11/2013 11:50 PM, Baboo, Isa wrote:

Thanks for the response but I tried that and it does not work here is an example of names which still display.

 

test

sadadds

Hillary

BEN NAME

ALAN MCGARVEY +


well, at least one of those has a space inline, you didn't say that was acceptable, just a-z0-9
and of course, upper and lower case, so you probably should use [A-Za-z0-9 ]  (note the space before the close bracket)





-- 
john r pierce                                      37N 122W
somewhere on the middle of the left coast

To read FirstRand Bank's Disclaimer for this email click on the following address or copy into your Internet browser:
https://www.fnb.co.za/disclaimer.html

If you are unable to access the Disclaimer, send a blank e-mail to firstrandbankdisclaimer@fnb.co.za and we will send you a copy of the Disclaimer.