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******************** Sql
Query*************...................
create database test
use test
--create table county,state,city in database...................
create table
CountryDetails(CountryId int primary key,CountryName varchar(50) unique)
create table
StateDetails(StateId int
primary key,StateName varchar(50)unique,CountryId int foreign key references
CountryDetails(CountryId) on delete
cascade)
create table
CityDetails(CityId...
