Is there a way to have the occurence option start at the end of the string and work backward, so that I can replace the 1st occurence from the end of the string? I have some strings where there is normally a state abbreviation, preceeded by two spaces at the end. All I am trying to do is strip them out by replacing with ''. The problem with starting from the beginning is that there can be any range of occurrences from 1-5+ that match two whitespace characters following by two word characters, so that I can't specify the position argument at the end. A few of the strings would look something similar to this:
'<word1> <word2> <word3> MN'
'<word1> <word2> <word3> <word4> CA'
'<word1> <word2> CA'
I'm not a RegEx expert by any means, so perhaps this is more of a regex problem than a problem with the occurence argument. However, I'm open to any suggestions
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Teradata Regular Expressions and Examples
I'm using this function to remove special characters. i want to know the types of special characters? i mean what kind of special characters it will remove? can anyone please provide the list of special characters?
In below statement i know the meaning for ' ',1,0, 'i' this statement. But, i'm trying to understand the use for '[\t\r\n\v\f|]' and '[^[:print:]]' these two functions.
TRIM(REGEXP_REPLACE(REGEXP_REPLACE(CAST(INOUT_STRING AS CHAR(3000)), '[\t\r\n\v\f|]',' ',1,0, 'i'), '[^[:print:]]','',1,0, ''))
Can anyone pleasae help me on this.