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SqlNullabilityProcessor.VisitExists Método

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Definición

Espacio de nombres:
Microsoft.EntityFrameworkCore.Query
Ensamblado:
Microsoft.EntityFrameworkCore.Relational.dll
Paquete:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Paquete:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Paquete:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Paquete:
Microsoft.EntityFrameworkCore.Relational v8.0.0
Paquete:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Source:
SqlNullabilityProcessor.cs
Source:
SqlNullabilityProcessor.cs
Source:
SqlNullabilityProcessor.cs
Source:
SqlNullabilityProcessor.cs
Source:
SqlNullabilityProcessor.cs

Visita y ExistsExpression calcula su nulabilidad.

protected virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression VisitExists(Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression existsExpression, bool allowOptimizedExpansion, out bool nullable);
abstract member VisitExists : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.VisitExists : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
Protected Overridable Function VisitExists (existsExpression As ExistsExpression, allowOptimizedExpansion As Boolean, ByRef nullable As Boolean) As SqlExpression

Parámetros

existsExpression
ExistsExpression

Existe una expresión que se va a visitar.

allowOptimizedExpansion
Boolean

Valor bool que indica si se permite la expansión optimizada que considera que el valor NULL es false.

nullable
Boolean

Valor bool que indica si la expresión sql acepta valores NULL.

Devoluciones

SqlExpression

Expresión sql optimizada.

Se aplica a