SQL & PL/SQL

Hello Friends,

I have a string something of this nature

Sting : ',3456,45454,,45454,'

Need to have just comma seperated value : '3456,45454,45454'
Tried with replace but getting - '34564545445454'

select replace ( ltrim(RTRIM(replace(',3456,45454,,45454,', ',,', ','),',')),',', '') from dual;



Appreciate your help .


Thanks/Kumar