ExprIsNotNull: This class represents the IS NOT NULL test.

In sqlq: 'SQL' Query Builder

This class represents the IS NOT NULL test.

Description

This class represents the IS NOT NULL test.

This class represents the IS NOT NULL test.

Details

Used to test if a field is NOT NULL inside a WHERE clause.

Super classes

sqlq::Statement -> sqlq::Expr -> sqlq::ExprComp -> ExprIsNotNull

Methods

Public methods

• ExprIsNotNull$new()

• ExprIsNotNull$getTokens()

• ExprIsNotNull$clone()

Inherited methods

• sqlq::Statement$toString()
• sqlq::ExprComp$enableParenthesis()

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Method new()

Initializer.

Usage

ExprIsNotNull$new(expr, ...)

Arguments

expr

The Expr instance to test.

...

Arguments to pass to parent class.

Returns

Nothing.

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Method getTokens()

Generates the list of tokens representing this statement.

Usage

ExprIsNotNull$getTokens()

Returns

A list of Token objects.

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Method clone()

The objects of this class are cloneable with this method.

Usage

ExprIsNotNull$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

# To generate a NOT NULL test:
ExprIsNotNull$new(ExprField$new("title"))

sqlq documentation built on Sept. 16, 2025, 9:10 a.m.