Results of 1 - 9 of about 9 for sum (0.030 sec.)
- PostgreSQL specific aggregation functions — Django 4.0.6 ドキュメント 13732
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... Returns the average of the independent variable ( sum(x)/N ) as a float , or default if there aren't any ... ¶ Returns the average of the dependent variable ( sum(y)/N ) as a float , or default if there aren't any ... y , x , filter = None , default = None ) ¶ Returns sum(x^2) - sum(x)^2/N ("sum of squares" of the indepen ... y , x , filter = None , default = None ) ¶ Returns sum(x*y) - sum(x) * sum(y)/N ("sum of products" of ind ...
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https://man.plustar.jp/django/ref/contrib/postgres/aggregates.html
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- クエリー式 — Django 4.0.6 ドキュメント 9850
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... tions like COALESCE and LOWER , or aggregates like SUM . They can be used directly: from django.db.models ... can be expressions or Python values. Strings are assumed to be column references and will be wrapped in F ... ようなクエリーを伝える Func() 式 の特殊な場合です。 Sum() や Count() など、すべての aggregate 関数 は、 Ag ... mple: from django.db.models import Aggregate class Sum ( Aggregate ): # Supports SUM(ALL field). function ...
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https://man.plustar.jp/django/ref/models/expressions.html
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- django.core.exceptions — Django 4.0.6 ドキュメント 8717
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... age , "error_dict" ): self . error_list . extend ( sum ( message . error_dict . values (), [])) else : se ... self ): if hasattr ( self , "error_dict" ): return sum ( dict ( self ) . values (), []) return list ( sel ...
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https://man.plustar.jp/django/_modules/django/core/exceptions.html
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- QuerySet API リファレンス — Django 4.0.6 ドキュメント 8628
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... import pickle >>> query = pickle . loads ( s ) # Assuming 's' is the pickled string. >>> qs = MyModel . o ... otate ( entries = F ( 'entries' ), ) . aggregate ( Sum ( 'entries' )) filter() and order_by() can take ex ... もできます: Entry . objects . order_by ( Coalesce ( 'summary' , 'headline' ) . desc ()) asc() と desc() は、 ... e foreign key) because the "one row, one object" assumption doesn't hold. For example, notice the behavio ...
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https://man.plustar.jp/django/ref/models/querysets.html
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- Database Functions — Django 4.0.6 ドキュメント 8430
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... st to most public >>> from django.db.models import Sum >>> from django.db.models.functions import Coalesc ... . screen_name ) Maggie >>> # Prevent an aggregate Sum() from returning None >>> # The aggregate default ... Author . objects . aggregate ( ... combined_age = Sum ( 'age' ), ... combined_age_default = Sum ( 'age' ... ault = 0 ), ... combined_age_coalesce = Coalesce ( Sum ( 'age' ), 0 ), ... ) >>> print ( aggregated [ 'co ...
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https://man.plustar.jp/django/ref/models/database-functions.html
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- アグリゲーション — Django 4.0.6 ドキュメント 8340
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... > from django.db.models import Avg , Count , Min , Sum >>> Publisher . objects . annotate ( Count ( 'book ... ): >>> Author . objects . annotate ( total_pages = Sum ( 'book__pages' )) ( QuerySet に含まれる Author は ... 性を持ちます。別名が指定されなければ、 book__pages__sum のようになります。) または書いた本の評価の平均を集 ...
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https://man.plustar.jp/django/topics/db/aggregation.html
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- Django 3.0 リリースノート — Django 4.0.6 ドキュメント 7765
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... behavior by overriding their descriptors . Avg and Sum now support the distinct argument. Added SmallAuto ...
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https://man.plustar.jp/django/releases/3.0.html
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- クエリを作成する — Django 4.0.6 ドキュメント 7765
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... the blog attribute of an Entry instance entry , assuming appropriate instances of Entry and Blog are alr ... ies where the rating of the entry is less than the sum of the pingback count and comment count, we would ... ues ( 'rating' )[: 1 ] ... ), ... total_comments = Sum ( 'number_of_comments' ), ... ) pk ルックアップショ ...
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https://man.plustar.jp/django/topics/db/queries.html
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- 索引 — Django 4.0.6 ドキュメント 7585
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... ount の属性) (JSONBAgg の属性) (StringAgg の属性) (Sum の属性) distinct() (django.db.models.query.QuerySe ...
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https://man.plustar.jp/django/genindex.html
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