Oracle PL/SQL : remove “space characters” from a string

Question

In my Oracle 10g database I would like to remove \"space characters\" (spaces, tabs, carriage returns...) from the values of a table field.

Is TRANSLATE() t

Answer 1

To replace one or more white space characters by a single blank you should use {2,} instead of *, otherwise you would insert a blank between all non-blank characters.

REGEXP_REPLACE( my_value, '[[:space:]]{2,}', ' ' )