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  1. sumMaybe :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat (Maybe a) -> Record ac (Maybe a)

    relational-schemas Database.Custom.Oracle

    Aggregation function SUM.

  2. sum' :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat a -> Record ac (Maybe a)

    relational-schemas Database.Custom.PostgreSQL

    Aggregation function SUM.

  3. sumMaybe :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat (Maybe a) -> Record ac (Maybe a)

    relational-schemas Database.Custom.PostgreSQL

    Aggregation function SUM.

  4. sum' :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat a -> Record ac (Maybe a)

    relational-schemas Database.Custom.SQLServer

    Aggregation function SUM.

  5. sumMaybe :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat (Maybe a) -> Record ac (Maybe a)

    relational-schemas Database.Custom.SQLServer

    Aggregation function SUM.

  6. sum' :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat a -> Record ac (Maybe a)

    relational-schemas Database.Custom.SQLite3

    Aggregation function SUM.

  7. sumMaybe :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat (Maybe a) -> Record ac (Maybe a)

    relational-schemas Database.Custom.SQLite3

    Aggregation function SUM.

  8. sumTuple :: Int -> Q Exp

    tuple-th TupleTH

    No documentation available.

  9. msum :: (Foldable t, MonadPlus m) => t (m a) -> m a

    base Control.Monad

    The sum of a collection of actions using (<|>), generalizing concat. msum is just like asum, but specialised to MonadPlus.

    Examples

    Basic usage, using the MonadPlus instance for Maybe: 
    >>> msum [Just "Hello", Nothing, Just "World"]
Just "Hello"

  10. asum :: (Foldable t, Alternative f) => t (f a) -> f a

    base Control.Applicative

    The sum of a collection of actions using (<|>), generalizing concat. asum is just like msum, but generalised to Alternative.

    Examples

    Basic usage: 
    >>> asum [Just "Hello", Nothing, Just "World"]
Just "Hello"

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