Exp

2005
2008
2012
2014
2016
2017
2019
2022

2005, 2008, 2012, 2014, 2016, 2017, 2019, 2022

Exp (Exponential) Mathematical Function

Use the Exp function to return the exponential of the specified expression.

Syntax

db.fx.Exp({expression})

Arguments

expression: – The value to use in the exponential calculation.

Returns

float

Examples

Select Statement

Select the exponential of a product's weight (which is nullable in the database).

float? result = db.SelectOne(
        db.fx.Exp(dbo.Product.Weight)
    )
    .From(dbo.Product)
    .Execute();

Where Clause

Select the exponential of a product's depth (which is nullable in the database).

float? result = db.SelectOne(
        db.fx.Exp(dbo.Product.Depth)
    )
    .From(dbo.Product)
    .Execute();

Order By Clause

Select and order by the exponential of a product's depth.

IEnumerable<Product> result = db.SelectMany<Product>()
    .From(dbo.Product)
    .OrderBy(db.fx.Exp(dbo.Product.Depth).Desc())
    .Execute();

Group By Clause

Select product details grouped by product category and the exponential of the product's depth.

IEnumerable<dynamic> results = db.SelectMany(
        dbo.Product.ProductCategoryType,
        db.fx.Exp(dbo.Product.Depth).As("calculated_value")
    )
    .From(dbo.Product)
    .GroupBy(
        dbo.Product.ProductCategoryType,
        db.fx.Exp(dbo.Product.Depth)
    )
    .Execute();

Having Clause

Select the ids of all products, grouped by product category type having a exponential of the product's height greater than the product's width.

IEnumerable<ProductCategoryType?> results = db.SelectMany(
        dbo.Product.ProductCategoryType
    )
    .From(dbo.Product)
    .GroupBy(
        dbo.Product.ProductCategoryType,
        db.fx.Exp(dbo.Product.Height),
        dbo.Product.Width
    )
    .Having(
        db.fx.Exp(dbo.Product.Height) > dbo.Product.Width
    )
    .Execute();