Suppose there is a table name as "Usersdetails"
ID Firstname Lastname
1 Alex stewart
2 Alex stewart
. . .
. . .
. . .
120 Alex stewart
suppose Firstname + Lastname = ' Alex stewart ' occurs 120 times in table
Now my question is I want that every users occurs only 65 times in table and I have to deleted remaining records...
How can I do that in a big table and in different kind of user name and occurrence of users may change??
please help...