SqlNullabilityProcessor.VisitScalarSubquery Metode

Definisi

Ruang nama:

Microsoft.EntityFrameworkCore.Query

Rakitan:

Microsoft.EntityFrameworkCore.Relational.dll

Paket:

Microsoft.EntityFrameworkCore.Relational v8.0.0

ScalarSubqueryExpression Mengunjungi dan menghitung nullabilitasnya.

protected virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression VisitScalarSubquery (Microsoft.EntityFrameworkCore.Query.SqlExpressions.ScalarSubqueryExpression scalarSubqueryExpression, bool allowOptimizedExpansion, out bool nullable);

abstract member VisitScalarSubquery : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ScalarSubqueryExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.VisitScalarSubquery : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ScalarSubqueryExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression

Protected Overridable Function VisitScalarSubquery (scalarSubqueryExpression As ScalarSubqueryExpression, allowOptimizedExpansion As Boolean, ByRef nullable As Boolean) As SqlExpression

Parameter

scalarSubqueryExpression

ScalarSubqueryExpression

Ekspresi subkueri skalar untuk dikunjungi.

allowOptimizedExpansion

Boolean

Nilai bool yang menunjukkan apakah ekspansi yang dioptimalkan yang menganggap nilai null sebagai nilai palsu diizinkan.

nullable

Boolean

Nilai bool yang menunjukkan apakah ekspresi sql dapat diubah ke null.

Mengembalikan

SqlExpression

Ekspresi sql yang dioptimalkan.