SqlNullabilityProcessor.VisitSqlConstant Metode

Definisi

Ruang nama:

Microsoft.EntityFrameworkCore.Query

Rakitan:

Microsoft.EntityFrameworkCore.Relational.dll

Paket:

Microsoft.EntityFrameworkCore.Relational v8.0.0

SqlConstantExpression Mengunjungi dan menghitung nullability-nya.

protected virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression VisitSqlConstant (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression sqlConstantExpression, bool allowOptimizedExpansion, out bool nullable);

abstract member VisitSqlConstant : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.VisitSqlConstant : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression * bool * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression

Protected Overridable Function VisitSqlConstant (sqlConstantExpression As SqlConstantExpression, allowOptimizedExpansion As Boolean, ByRef nullable As Boolean) As SqlExpression

Parameter

sqlConstantExpression

SqlConstantExpression

Ekspresi konstanta sql untuk dikunjungi.

allowOptimizedExpansion

Boolean

Nilai bool yang menunjukkan apakah ekspansi yang dioptimalkan yang mempertimbangkan 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.