please tell me what's the wrong thing in this expression..
as i am not able to get any output
Nothing strange about it really.
You don't see any output because your regular expression "RCDORMS_MMS_*_DAR" does not match your literal string "RCDORMS_MMS_*_DAR".
What you are saying by your regular expression is this:
Now, if you look at your literal string, you'll see that the match fails at step # 13.
The step # 12 succeeded, because you have ONE occurrence of the character "_" which makes the phrase "zero or more occurrences" TRUE.
But it (i.e. the character "_") is **NOT** followed by an underscore as required by the regex.
It is followed by a literal asterisk character ("*").
Hence the regex fails to match your string and you see no output.
Note that the asterisk ("*") is a "metacharacter" in POSIX BRE, i.e. it has a special meaning in a regex; you cannot use its literal meaning. Also note that Oracle follows POSIX specification for regular expressions.
HTH,
tyler_durden
Last edited by durden_tyler; 10-11-2011 at 06:11 PM..
if i have to do pattern match for file name with digit alphanumeric value like this
File_1234.csv
File_12sd45rg.csv
i am using this File_*.csv
and File_*.csv for digit pattern match.
when i am doing pattern match for the digit then both alphanumeric match
and digit match is coming.
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Subject: Test
Subject: How are you.
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192.168.1.41
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