I want to check if valid phone number is inserting in table, so my trigger code is here:
select start_index
into mob_index
from gmarg_mobile_operators
where START_INDEX = substr(:new.contact_info,0,3);
if (REGEXP_LIKE (:NEW.CONTACT_INFO,'^(?:'|| mob_index ||')[\-,\:]{0,1}[0-9][0-9][\-,\:]{0,1}[0-9][0-9][\-,\:]{0,1}[0-9][0-9]')) then
found := 1;
end if;
I've checked my regex: "^(?:555)[-,:]{0,1}[0-9][0-9][-,:]{0,1}[0-9][0-9][-,:]{0,1}[0-9][0-9]" on several online tools and it is correct.
When I run my trigger, it compiles successfully, but during inserting a row following error is shown:
insert into GMARG_CONTACTS
(CLINET_ID,CONTACT_INFO,contact_type_id)
values
(0,'555194117','Mobile')
Error report -
SQL Error: ORA-12728: invalid range in regular expression
ORA-06512: at "HR.GMARG_TRIGGER_CONTACT", line 12
ORA-04088: error during execution of trigger 'HR.GMARG_TRIGGER_CONTACT'
12728. 00000 - "invalid range in regular expression"
*Cause: An invalid range was found in the regular expression.
*Action: Ensure a valid range is being used.
So, if my regex is correct, why does oracle shows error? I tried to find answer, or redifine my regex, but no forward steps... thank you in advance
Regexp don't use \\
to protect -
in a bracket expression . You only have to put -
as the first character, just after the opening bracket:
IF REGEXP_LIKE('--,,::', '[\-,:]*')
...
=> ORA-12728: invalid range in regular expression
If you're curious, when encountering [\\-,:]
Oracle understand: "any character in the range from \\
to ,
or the character :
" . The reason why this raises an exception is \\
appears to be after ,
according to their ASCII value. And Oracle don't accept range having a starting value after the ending one.
On the other hand:
IF REGEXP_LIKE('--,,::', '[-,:]*')
Works as expected.
[-,:]{0,1}
meaning "zero or one occurrence of -
or ,
or :
" could be written [-,:]?
.
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