This is a String Function which uis used to identify where  
the position of one string or letter in the other string 
which occurs for the first time.
For Eg:
First String str1=: A sentence does not end with because 
beacause because is a conjuction.
Second and identified string str2=: because
if we given like a=Instr(str1,str2,1)
it is gives a as 7

a) When the use the two are more string then use instr ()
b)	Ex: - This like instr (str1, str2, ?)


My name is k.chandra sekhar,
My phone no is 09246540049,
Hyderabad.
My mail id is ndra_143@yahoo.co.in 
If any body want full explain send the mail

I Agree with Krishnachand.

Mr chandrashekar ..........  if u want to give the brief
explanation abt any Question...... Write here itself .....
No need to provide ur contact details ......... 

It's very bad part of it ........


Chn

Here I am Providing the right answer. If U want to find the 
first occurance of substring with in string then u can use 
the instr function.

any doubts mail to

mskalyan.smile@gmail.com