PlaceholderIdentifier class

placeholder Identifier

Constructors

PlaceholderIdentifier(String value)

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → String

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

Postgresql default style Example: "SELECT * FROM book WHERE title = $1 AND code = $2" Postgres uses $# for placeholders https://www.postgresql.org/docs/9.1/sql-prepare.html

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

atSign → const PlaceholderIdentifier

In business, @ (Arroba ) is a symbol meaning "at" or "each." Example: "SELECT * FROM book WHERE title = @title AND code = @code"

onlyQuestionMark → const PlaceholderIdentifier

The colon is the symbol ":" Example: "SELECT * FROM book WHERE title = :title AND code = :code" The question mark ? (also known as interrogation point) Example: "SELECT * FROM book WHERE title = ? AND code = ?" Note: You cannot enclose the question mark in quotation marks. incorrect '?' => correct ??