REGEXP_REPLACE - case based replacement

Hi,
I'm not good with the usage of REGEXP_REPLACE. I need to replace following characters in a given string as below-
$ with USD
# with NO
= with EQ
% with PCT
given string example - '$100 5% DEBT = #5 DEBT'
desired output - 'USD100 5 PCT DEBT EQ NO 5 DEBT'
SELECT REGEXP_REPLACE('$100 5% DEBT = #5 DEBT',?,?)
FROM DUAL;I'm using 11g R2.
Thanks

Hi,
Regular expressions can do some amazing things, but they can't do everything. I don't think regular expressions will help in this problem.
If you only have 4 things to replace, then nested REPLACE functions, like the others suggested, are practical.
If you have many things to replace, MODEL can help you. See this thread:
SQL Query
Too bad you're not replacing single characters with other single characters; TRANSLATE can easily do that.

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Test 1
select regexp_replace( '<?xml version="1.0"?>' , '^<\?xml(.+?)\?>', '<?xml\1 encoding="ISO-8859-1"?>') from dual;OUTPUT
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<?xml version="1.0" encoding="ISO-8859-1"?>
1 rows selected-------------------------------------------------
Test 2
/* and do the same with the previous :xml variable */
var x clob;
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select regexp_replace( :xml , '^<\?xml(.+?)\?>', '<?xml\1 encoding="ISO-8859-1"?>') from dual;OUTPUT
anonymous block completed
REGEXP_REPLACE(:XML,'^<\?XML(.+?)\?>','<?XML\1ENCODING="ISO8859-1"?>')
(CLOB) (CLOB) <?xml version="1.0"?>
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Test 3
set role NONE
(...) OUTPUT
set role réussi.
anonymous block completed
* in between *<?xml version="1.0"?>
<ROWSET>
<ROW>
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<ROW>
<TABLE_NAME>N43010</TABLE_NAME>
</ROW>
<ROW>
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</ROW>
<ROW>
<TABLE_NAME>N
* AFTER *
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REGEXP_REPLACE - case based replacement

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