Question

i am devloping a game application in android using sqlite connectivity.. all thing is going good.. but now i want to do like that, so only past 20 data remain in my database.. that mean at every insert data statment i want to delete last data remaining last assending 20 data

Answer 1

this can be done using sql query. First retrieve total number of records available in table.
then use if-else condition.

if number of records>20

then {
delete a record according to condition;

insert new record in table.

}

else
insert new record in table.