ExprUnaryOp: This class represents an SQL unary operator.

In sqlq: 'SQL' Query Builder

This class represents an SQL unary operator.

Description

This class represents an SQL unary operator.

This class represents an SQL unary operator.

Details

Used to generate SQL expressions involving an unary operator like in "NOT flag".

Super classes

sqlq::Statement -> sqlq::Expr -> sqlq::ExprComp -> ExprUnaryOp

Methods

Public methods

• ExprUnaryOp$new()

• ExprUnaryOp$getTokens()

• ExprUnaryOp$clone()

Inherited methods

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

---

Method new()

Initializer.

Usage

ExprUnaryOp$new(op, expr, ...)

Arguments

op

The unary operator, as a string.

expr

An Expr instance.

...

Arguments to pass to parent class.

Returns

Nothing.

---

Method getTokens()

Generates the list of tokens representing this statement.

Usage

ExprUnaryOp$getTokens()

Returns

A list of Token objects.

---

Method clone()

The objects of this class are cloneable with this method.

Usage

ExprUnaryOp$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

# To generate "NOT flag":
ExprUnaryOp$new("not", ExprField$new("flag"))

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