Creates an assignment that multiplies by an SQL expression.
static func *= (column: Self, value: some SQLExpressible) -> ColumnAssignment s4GRDB16ColumnExpressionPAAE2meoiyAA0B10AssignmentVx_qd__tAA14SQLExpressibleRd__lFZ What are these?7ONUIFor example:
Column("score") *= 2
Column("score") *= Column("factor")Usage:
try dbQueue.write { db in
// UPDATE player SET score = score * 2
try Player.updateAll(db, Column("score") *= 2)
}import GRDBA toolkit for SQLite databases, with a focus on application development
protocol ColumnExpression : SQLSpecificExpressibleA type that represents a column in a database table.
protocol SQLExpressibleA type that can be used as an SQL expression.
struct ColumnAssignmentA ColumnAssignment assigns a value to a column.
var detached: SQLExpression { get }An SQL expression that refers to an aliased column (expression AS alias).
var noOverwrite: ColumnAssignment { get }An assignment that does not modify this column.
var sqlExpression: SQLExpression { get }Returns an SQL column.
static func &= (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that applies a bitwise and.
static func += (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that adds an SQL expression.
static func -= (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that subtracts an SQL expression.
static func /= (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that divides by an SQL expression.
static func <<= (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that applies a bitwise left shift.
static func >>= (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that applies a bitwise right shift.
static func |= (column: Self, value: some SQLExpressible) -> ColumnAssignment Creates an assignment that applies a bitwise or.
func match(_ pattern: FTS3Pattern?) -> SQLExpression A matching SQL expression with the MATCH SQL operator.
func match(_ pattern: FTS5Pattern) -> SQLExpression A matching SQL expression with the MATCH SQL operator.
func set(to value: (any SQLExpressible)?) -> ColumnAssignment Returns an assignment of this column to an SQL expression.