sql - Group by in HIVE not working like i want -

-

hi trying output city playerid ab(runs).

output birth city of player had @ bats (ab) in
career.

now want cinncinati, sander01, 14432, correct. shows in 3's this. every city , player , runs, 2nd most. need 1 entry, other 2 redundant. think there did wrong group by, help? plz

cinncinati, sander01, 14432 cinncinati, sander01, 14432 cinncinati, sander01, 14432 chicago, dere90, 12324 chicago, dere90, 12324 chicago, dere90, 12324    select a.bcity,a.id, b.ab master  join (select id, sum(ab) ab batting group id) b on a.id = b.id order b.ab desc limit 30;

refer distinct getting distinct result set.now coming question,join master table top row result set b. 

select a.bcity,b.id,b.ab master  join  (select id,sum(ab) ab batting  group id  order ab desc  limit 1 ) b on a.id = b.id

you can change limit 30 limit 1 , same result.

select a.bcity,a.id, b.ab master  join (select id, sum(ab) ab batting  group id ) b on a.id = b.id order b.ab desc  limit 1;

note: if there multiple players same runs limit 1 not give correct answer.


Comments

Post a Comment

Popular posts from this blog

ios - Memory not freeing up after popping viewcontroller using ARC -

-
hi project arc based, using uinavigationcontroller make transition between viewcontroller. using profiler analyse happening behind scene memory. noticed when push viewcontroller allocate memory components , when pop not freeing allocated memory. since using arc unable implement dealloc or release component. have analysed in detail , there no memory leak in project. i not using strong property push viewcontroller. here how pushing viewcontroller. viewcontroller *obj = [[viewcontroller alloc] init]; [self.navigationcontroller pushviewcontroller:obj animated:no]; any clue whats going on? should free memory have consumed. please advise your description indicates have retain cycle, leads objects not being deallocated. typical source of retain cycles properties assigned loading nib files (usually declared iboutlet ). two strategies break them , release objects: declare property weak : @property (nonatomic, weak) iboutlet uilabel *statuslabel; set property nil in...
Read more

Django REST Framework perform_create: You cannot call `.save()` after accessing `serializer.data` -

-
i have following viewset: class artistprofileviewset(viewsets.modelviewset): queryset = artistprofile.objects.all() serializer_class = artistprofileserializer def perform_create(self, serializer): if serializer.is_valid(): serializer.save() with following serializers: class simpleartisttrackserializer(serializers.hyperlinkedmodelserializer): class meta: model = artisttrack fields = (...my fields...) class artistprofileserializer(serializers.hyperlinkedmodelserializer): owners = userserializer(many=true, required=false) tracks = simpleartisttrackserializer(many=true, required=false) class meta: model = artistprofile fields = (...my fields...) i getting following error: assertionerror: cannot call `.save()` after accessing `serializer.data`.if need access data before committing database inspect 'serializer.validated_data' instead. i don't see editing serializer.data object. th...
Read more

Why does Go error when trying to marshal this JSON? -

-
i'm trying rather simple example of trying decode json file structs using golang. however, when attempting error that json: cannot unmarshal object go value of type []main.track which don't understand. here's code in question, , json can found here . package main import ( "encoding/json" "fmt" "net/http" "os" ) // tracks group of track types type tracks struct { tracks []track } // track represents singular track type track struct { name string url string artist artist } // artist represents single artist type artist struct { name string mbid string url string } func main() { url := "http://ws.audioscrobbler.com/2.0/?method=geo.gettoptracks&api_key=c1572082105bd40d247836b5c1819623&format=json&country=netherlands" response, err := http.get(url) if err != nil { fmt.printf("%s\n", err) os.exit(1) } de...
Read more