ISqlExpressionFactory.Exists Method
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| Exists(SelectExpression) |
Creates a new ExistsExpression which represents an EXISTS operation in a SQL tree. |
| Exists(SelectExpression, Boolean) |
Creates a new ExistsExpression which represents an EXISTS operation in a SQL tree. |
- Source:
- ISqlExpressionFactory.cs
- Source:
- ISqlExpressionFactory.cs
Creates a new ExistsExpression which represents an EXISTS operation in a SQL tree.
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression Exists (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression subquery);public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression Exists (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression subquery);abstract member Exists : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpressionabstract member Exists : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpressionPublic Function Exists (subquery As SelectExpression) As ExistsExpressionPublic Function Exists (subquery As SelectExpression) As SqlExpressionParameters
- subquery
- SelectExpression
A subquery to check existence of.
Returns
An expression representing an EXISTS operation in a SQL tree.
Applies to
Entity Framework Core 9.0 and Entity Framework Core 8.0
| Product | Versions |
|---|---|
| Entity Framework Core | 8.0, 9.0 |
- Source:
- ISqlExpressionFactory.cs
Creates a new ExistsExpression which represents an EXISTS operation in a SQL tree.
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression Exists (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression subquery, bool negated);abstract member Exists : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression * bool -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpressionPublic Function Exists (subquery As SelectExpression, negated As Boolean) As ExistsExpressionParameters
- subquery
- SelectExpression
A subquery to check existence of.
- negated
- Boolean
A value indicating if the existence check is negated.
Returns
An expression representing an EXISTS operation in a SQL tree.
Applies to
Entity Framework Core 7.0 and other versions
| Product | Versions |
|---|---|
| Entity Framework Core | 3.0, 3.1, 5.0, 6.0, 7.0 |
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