共用方式為

ISqlExpressionFactory.Subtract 方法

  • 參考

定義

命名空間:
Microsoft.EntityFrameworkCore.Query
組件:
Microsoft.EntityFrameworkCore.Relational.dll
套件:
Microsoft.EntityFrameworkCore.Relational v3.0.0
套件:
Microsoft.EntityFrameworkCore.Relational v3.1.0
套件:
Microsoft.EntityFrameworkCore.Relational v5.0.0
套件:
Microsoft.EntityFrameworkCore.Relational v6.0.0
套件:
Microsoft.EntityFrameworkCore.Relational v7.0.0
套件:
Microsoft.EntityFrameworkCore.Relational v8.0.0

建立 ， SqlBinaryExpression 表示減法。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlBinaryExpression Subtract (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression left, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression right, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlBinaryExpression Subtract (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression left, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression right, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);
abstract member Subtract : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlBinaryExpression
Public Function Subtract (left As SqlExpression, right As SqlExpression, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlBinaryExpression

參數

left
SqlExpression

左運算元。

right
SqlExpression

右運算元。

typeMapping
RelationalTypeMapping

要指派給所建立運算式的類型對應。

傳回

SqlBinaryExpression

表示 SQL 減法的運算式。

適用於