c) ltrim(): Remove blank spaces from left hand side of
string;
Ex:select ltrim(‘ oracle’) from dual
d) rtrim(): Remove blank spaces from right hand side of
string;
Ex:select ltrim(‘oracle ’) from dual
e) trim(): Remove blank spaces from left and right hand side
of string;
Ex:select ltrim(‘ oracle ’) from dual;
f) vsize(): cound number of
bytes occupied by given string
Ex:select vsize(‘oracle’) from dual
g) lpad: Used to combining
given character from left hand side of string
Ex:select lpad(‘oracle’,15,’*’) from dual
h) rpad: Used to combining
given character from right hand side of string
Ex:select rpad(‘oracle’,15,’*’) from dual
i) translate: translate given character with specified
character
Ex:select translate (‘i am from oracle,’o’,t’) from dual
j) replace():replace given character with specified
character
Ex:select translate (‘i am indian’’n’,t’) from dual
k) substr(): Return the part of string from main string
Ex: select substr (‘india’0,4’) from dual
l) soundex():Used to retrieve the name whose pronounciation
is same but spelling are defferent
Ex:select * from from names where
soundex(name)=sound(‘murthy’);
m) upper(): convert into capital letter
Ex:select upper(‘indian’) from dual
n) lower(): Convert into small letter
Ex:select upper(‘INDIAN’) from dual
o) instr(): Returns position of character
Ex:select instr(‘india’,’d’)