Enumeration
SQLForeignKeyAction
An expression specifying a behavior for a foreign key constraint violation.
enum SQLForeignKeyAction
Topics
Enumeration Cases
SQLForeignKeyAction.cascadeTheCASCADEbehavior.SQLForeignKeyAction.noActionTheNO ACTIONbehavior.SQLForeignKeyAction.restrictTheRESTRICTbehavior.SQLForeignKeyAction.setDefaultTheSET DEFAULTbehavior.SQLForeignKeyAction.setNullTheSET NULLbehavior.
Instance Methods
serialize(to:)Invoked when a request is made to serialize the expression to raw SQL.
Relationships
Conforms To
SQLExpressionSwift.EquatableSwift.HashableSwift.SendableSwift.SendableMetatype
See Also
Basic Expressions
SQLAliasEncapsulates SQL’s<expression> [AS] <name>syntax, most often used to declare aliaed names for columns and tables.SQLBetweenAnSQLExpressionwhich constructs SQL of the form<operand> BETWEEN <lowerBound> AND <upperBound>.SQLColumnAn expression representing an optionally table-qualified column in an SQL table.SQLConstraintAn expression representing the combination of a constraint name and algorithm for table constraints.SQLDataTypeRepresents a value’s type in SQL.SQLDirectionDescribes an ordering direction for a given sorting key.SQLDistinctAn expression representing the subexpression of an aggregate function call which specifies whether the aggregate groups over all result rows or only distinct rows.SQLNestedSubpathExpressionA “nested subpath” expression is used to descend into the “deeper” structure of a non-scalar value, such as a dictionary, array, or JSON value.SQLQualifiedTableAn expression representing an optionally second-level-qualified SQL table.SQLQueryStringAn expression consisting of an array of constituent subexpressions generated by custom string interpolations.