Re: Regular Expressions

"A. Sasaki" <[email protected]> Sun, 4 Nov 2018 12:44:43 -1000
Newsgroups gmane.comp.db.postgresql.sql
Message-ID <[email protected]>
I didn’t test it in a DB, sorry ’bout that.

I think others are on the right track here, using SQL for the AND functionality:

‘Select *
FROM [TABLE]
WHERE [regex search 1]
AND [regex search 2]
AND [regex search 3]
....’


Thanks,

-Andrew-

> On Nov 4, 2018, at 9:43 AM, Mark Williams <[email protected]> wrote:
> 
> Hi Andrew,
>  
> Thanks for the reply.
>  
> I tried the query, but it produced an error “invalid regular expression: quantifier operand invalid”.
>  
> Also, what would be the regular expression if you want to check whether all the words were in the field where you had say 10 words/phrases you wanted to check for?
>  
>  
> __
>  
> From: A. Sasaki <[email protected]> 
> Sent: 04 November 2018 19:30
> To: Mark Williams <[email protected]>
> Subject: Re: Regular Expressions
>  
> ‘(*\mtext1\M*\mtext2\M)|(*\mtext2\M*\mtext1\M)’
> 
> Thanks,
>  
> -Andrew-
> 
> On Nov 4, 2018, at 9:10 AM, Mark Williams <[email protected]> wrote:
> 
> If I wanted to search for whole words in a field I would use something like:
>  
> Select * from mytable where myfield ~* ‘(\mtext1\M) | (\mtext2\M)’
>  
> This would find all instances of myfield containing either “text1” or “text2”.
>  
> I can’t figure out how to search myfield for all instances which contain “text1” AND “text2”.
>  
> In other words | is the OR operator. What is the AND operator. Tried + and whilst that executes, it doesn’t return matching fields.
>  
> Thanks
>  
> Mark
>  
> __
>