Structure

SQLDropEnum

An expression representing a DROP TYPE query. Used to delete enumeration types.

struct SQLDropEnum

Overview

DROP TYPE IF EXISTS "enum_type" CASCADE:

This expression does not check whether the current dialect supports separate enumeration types; users should take care not to use it with incompatible drivers.

See SQLDropEnumBuilder.

Topics

Initializers

init(name:)
Create a new enumeration deletion query.

Instance Properties

cascade
A legacy alias for toggling dropBehavior between SQLDropBehavior.restrict (false) and SQLDropBehavior.cascade (true). Prefer setting dropBehavior directly instead.
dropBehavior
A drop behavior.
ifExists
If true, requests idempotent behavior (e.g. that no error be raised if the named type does not exist).
name
The name of the type to drop.

Instance Methods

serialize(to:)
Invoked when a request is made to serialize the expression to raw SQL.

Relationships

Conforms To

SQLExpression
Swift.Sendable
Swift.SendableMetatype

See Also

Query Expressions

SQLAlterEnum
An expression representing an ALTER TYPE query. Used to add new cases to enumeration types.
SQLAlterTable
An expression representing an ALTER TABLE query. Used to modify the structure of existing tables.
SQLCreateEnum
An expression representing a CREATE TYPE query. Used to create enumeration types.
SQLCreateIndex
An expression representing a CREATE INDEX query. Used to add indexes over columns to an existing table.
SQLCreateTable
An expression representing a CREATE TABLE query. Used to create new tables.
SQLCreateTrigger
An expression representing a CREATE TRIGGER query. Used to create new triggers for actions on a table.
SQLDelete
An expression representing a CREATE TRIGGER query. Used to remove rows from a table.
SQLDropIndex
An expression representing a DROP INDEX query. Used to delete indexes from tables.
SQLDropTable
An expression representing a DROP TABLE query. Used to delete entire tables.
SQLDropTrigger
An expression representing a DROP TRIGGER query. Used to delete triggers.
SQLInsert
An expression representing an INSERT query. Used to add new rows to a table.
SQLSelect
An expression representing a SELECT query. Used to retrieve rows and expression results from a database.
SQLUnion
An expression representing two or more SELECT queries joined by UNION clauses. Used to merge the results of multiple queries into a single result set.
SQLUpdate
An expression representing an UPDATE query. Used to modify existing rows in a single table.