Table of Contents

Class ScalarSubqueryExpression

Namespace
Microsoft.EntityFrameworkCore.Query.SqlExpressions
Assembly
Microsoft.EntityFrameworkCore.Relational.dll

An expression that represents projecting a scalar SQL value from a subquery.

This type is typically used by database providers (and other extensions). It is generally not used in application code. 

public class ScalarSubqueryExpression : SqlExpression, IPrintableExpression
Inheritance
ScalarSubqueryExpression
Implements
IPrintableExpression
Inherited Members

Constructors

ScalarSubqueryExpression(SelectExpression)

Creates a new instance of the ScalarSubqueryExpression class.

public ScalarSubqueryExpression(SelectExpression subquery)

Parameters

subquery SelectExpression

A subquery projecting single row with a single scalar projection.

Properties

Subquery

The subquery projecting single row with single scalar projection.

public virtual SelectExpression Subquery { get; }

Property Value

SelectExpression

Methods

Equals(object) 

public override bool Equals(object obj)

Parameters

obj object

Returns

bool

GetHashCode() 

public override int GetHashCode()

Returns

int

Print(ExpressionPrinter) 

protected override void Print(ExpressionPrinter expressionPrinter)

Parameters

expressionPrinter ExpressionPrinter

Update(SelectExpression)

Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.

public virtual ScalarSubqueryExpression Update(SelectExpression subquery)

Parameters

subquery SelectExpression

The Subquery property of the result.

Returns

ScalarSubqueryExpression

This expression if no children changed, or an expression with the updated children.

VisitChildren(ExpressionVisitor) 

protected override Expression VisitChildren(ExpressionVisitor visitor)

Parameters

visitor ExpressionVisitor

Returns

Expression