REPLACESTR - Replace a string with another string in Informatica

REPLACESTR is used when one input string (or more) has to be replaced with another string. Note the following example replace ab and bc with *

Example : Replace old with new
REPLACESTR ( 1, INPUT, 'old', 'new')

INPUTRETURN VALUE
oldnew
oldkeyboardnewkeyboard
old mousenew mouse
holdhnew

Example : More than input with one replacement
REPLACESTR ( 1, INPUT, 'ab', 'bc', '*' )

INPUTRETURN VALUE
abc*c
abbc**
abbbbc*bb*
bc*