Question

[dbo].Regex

above is my regular expression when i am passing ‘(‘ or ‘)’brackets symbol it is nt returnig error…

please hw 2 do this….

and please teach me how to eliminate perticular character is a invalid thing.
rite now wt ever symbol is present in brackets i.e [ ] its a valid so similarly how to eliminate the pericular words or letters.

Thanks in Advance………

Please advise

Answer 1

'^[-a-zA-Z0-9,&''.@#/:;]+$'

• The first character ^ means start of string.
• Then everything between [] matches the characters allowed (in the string).
• The + mean at least one such character is expected.
• The $ means, string end (so no other characters are allowed to follow).

To create a regular expression that is the inverse, there would be a ^ as first character between the [ ].

[^()_] Any character except (, ) or _

Warning: It can be that the curly brackets need escapes, similar as the above original regular expression showed with the '.

Have a look at this quick start, to get a good start on regular expressions.

Also the O’Reilly book Mastering Regular Expressions is one of the references I would advise to read.

And on WikiPedia also good background on Regular Expressions can be found.