how below query
INNER JOIN City
ON Country.Code = City.CountryCode
different from below query
FROM City//from City instead of Country here makes any difference?
INNER JOIN Country//from Country instead of City here makes any difference?
ON City.CountryCode=Country.Code //here which is before and after matters in case of inner, left, right inner joins??
where i can learn in detail about all about inner and outer queries like any free video tutorials?