Enum Sql.IsNullableType

Provides information when function or expression could return null.

Namespace: LinqToDB
Assembly: linq2db.dll
Syntax
public enum IsNullableType : int

Fields

Name Description
IfAllParametersNullable
IfAnyParameterNullable

Expression could return NULL if at least one parameter of expression could contain NULL.
NotNullable

Expression never returns NULL.
Nullable

Expression could always return NULL.
SameAsFirstParameter

Expression could return NULL if first parameter of expression could contain NULL.
SameAsLastParameter

Expression could return NULL if last parameter of expression could contain NULL.
SameAsSecondParameter

Expression could return NULL if second parameter of expression could contain NULL.
SameAsThirdParameter

Expression could return NULL if third parameter of expression could contain NULL.
Undefined

Nullability not specified, and other sources (like CanBeNull or return type) will be used to identify nullability.

Extension Methods