MySQL cursor implementation replicates table data

BEGIN
DECLARE Cflag bit DEFAULT 0;
DECLARE CID int;
DECLARE CNAME VARCHAR (16);

--Declaring a cursor
Declare cur_copy CURSOR for select id,name from fruit;

--Set cursor end tag
DECLARE CONTINUE HANDLER for not found set cflag=1;

--Open cursor
OPEN cur_copy;

--loop out the values in the cursor
Read_loop:loop
FETCH cur_copy into Cid,cname;

--Loop End tag
If Cflag=1 then leave Read_loop;
End If;
Insert into fruit_copy (id,name) values (cid,cname);
End Loop;
Close cur_copy;
END

MySQL cursor implementation replicates table data