Hi ,ddrudik ,   thanks for your advice , but why Oracle doesn't support negative symbol ' ! ' , How to solve the problem ? Thanks & Best regards, Sparky

Dear all,      Thanks for all your constructive and nice advice in advance ^)^       I will state my problem once again  in more details ...all the problems we discussing is about digit and independent of  letter . letter 'A'  just stand for a ...

Dear all,      Thanks for all your constructive and nice advice in advance ^)^       I will state my problem once again  in more details ...all the problems we discussing is about digit and independent of  letter . different letter is just stand for different ...

Dear ddrudik ,  Thanks for your kindly advise in advance !  To be honest , There are thousands of different patterns need to be stored in database,If I write functions,there are so many, so I must validate them by regular expression .   But I don't do well in regex , I need your great help , thannks ... BTW, ...

Example: 1245A78    how to compare with the fifth digit A  ?  if ( A > 5 ) , the expression is valid ...

Dear ddrudik :  I use the regex on java under windows platform . I have 2 questions as follow: 1. ABCABDABE (A B C D E are numeric digit , C D E must be serial and sort ascending), example: 245246247 is valid ... 2.how to validate the location in a string ,example:  I want to validate the position of '6' in the string ...

Michael, Your pattern will find ascending/descending digit sequences but will also include nonsequential digits such as  1345 or 1357 So it does not quite meet the my stated requirement. BTW, Need an expression to validate such a pattern : ABCABDABE (Note: A B C D E are different numeric digits , C.D.E  should be ...

Hello , I want to validate the numeric digit is sequential and sort ascending (desc) , such as 123456 ,  456789 are valid . 876543 ,54321 are also valid , Is anybody who can help me solve the problem ?  thanks for your kindly help ^O^    my MSN: sparkyhuang520@hotmail.com   Email : jianlin.huang@hp.com

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I'm trying to create a regex that has the following requirements: 1. must be at least 7 characters in length 2. must contain at least 1 digit 3. must contain at least 1 lowercase letter 4. must contain at least 1 uppercase letter 5. must contain at least one of the following symbols: = ! $ % ^ & + 6. It must reject any word that ...