ISqlExpressionFactory.Function 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

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

多載

Function(String, Type, RelationalTypeMapping)	已淘汰. 建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(SqlExpression, String, Type, RelationalTypeMapping)	已淘汰. 建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)	已淘汰. 建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(String, String, Type, RelationalTypeMapping)	已淘汰. 建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(SqlExpression, String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)	已淘汰. 建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(String, String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)	已淘汰. 建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)	建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(String, String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)	建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。
Function(SqlExpression, String, IEnumerable<SqlExpression>, Boolean, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)	建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

Function(String, Type, RelationalTypeMapping)

警告

Use NiladicFunction method.

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use NiladicFunction method.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use NiladicFunction method.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

[<System.Obsolete("Use NiladicFunction method.")>]
abstract member Function : string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (name As String, returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

name: String

函數的名稱。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

屬性: ObsoleteAttribute

適用於

Function(SqlExpression, String, Type, RelationalTypeMapping)

警告

Use NiladicFunction method.

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use NiladicFunction method.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use NiladicFunction method.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

[<System.Obsolete("Use NiladicFunction method.")>]
abstract member Function : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (instance As SqlExpression, name As String, returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

instance: SqlExpression

套用函式的運算式。

name: String

函數的名稱。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

屬性: ObsoleteAttribute

適用於

Function(String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)

警告

Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

[<System.Obsolete("Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.")>]
abstract member Function : string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (name As String, arguments As IEnumerable(Of SqlExpression), returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

name: String

函數的名稱。

arguments: IEnumerable<SqlExpression>

函式的引數。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

屬性: ObsoleteAttribute

適用於

Function(String, String, Type, RelationalTypeMapping)

警告

Use NiladicFunction method.

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string schema, string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use NiladicFunction method.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string schema, string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use NiladicFunction method.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string schema, string name, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : string * string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

[<System.Obsolete("Use NiladicFunction method.")>]
abstract member Function : string * string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (schema As String, name As String, returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

schema: String

定義函式的架構。

name: String

函數的名稱。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

屬性: ObsoleteAttribute

適用於

Function(SqlExpression, String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)

警告

Use overload that explicitly specifies value for 'instancePropagatesNullability' and 'argumentsPropagateNullability' arguments.

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use overload that explicitly specifies value for 'instancePropagatesNullability' and 'argumentsPropagateNullability' arguments.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use overload that explicitly specifies value for 'instancePropagatesNullability' and 'argumentsPropagateNullability' arguments.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

[<System.Obsolete("Use overload that explicitly specifies value for 'instancePropagatesNullability' and 'argumentsPropagateNullability' arguments.")>]
abstract member Function : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (instance As SqlExpression, name As String, arguments As IEnumerable(Of SqlExpression), returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

instance: SqlExpression

套用函式的運算式。

name: String

函數的名稱。

arguments: IEnumerable<SqlExpression>

函式的引數。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

屬性: ObsoleteAttribute

適用於

Function(String, String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)

警告

Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string schema, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string schema, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

[System.Obsolete("Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.")]
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string? schema, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : string * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

[<System.Obsolete("Use overload that explicitly specifies value for 'argumentsPropagateNullability' argument.")>]
abstract member Function : string * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (schema As String, name As String, arguments As IEnumerable(Of SqlExpression), returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

schema: String

定義函式的架構。

name: String

函數的名稱。

arguments: IEnumerable<SqlExpression>

函式的引數。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

屬性: ObsoleteAttribute

適用於

Function(String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * seq<bool> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (name As String, arguments As IEnumerable(Of SqlExpression), nullable As Boolean, argumentsPropagateNullability As IEnumerable(Of Boolean), returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

name: String

函數的名稱。

arguments: IEnumerable<SqlExpression>

函式的引數。

nullable: Boolean

bool 值，指出此函式是否可以傳回 Null。

argumentsPropagateNullability: IEnumerable<Boolean>

布林值清單，指出個別引數是否會傳播 Null 至結果。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

適用於

Function(String, String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string schema, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (string? schema, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : string * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * seq<bool> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (schema As String, name As String, arguments As IEnumerable(Of SqlExpression), nullable As Boolean, argumentsPropagateNullability As IEnumerable(Of Boolean), returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

schema: String

定義函式的架構。

name: String

函數的名稱。

arguments: IEnumerable<SqlExpression>

函式的引數。

nullable: Boolean

bool 值，指出此函式是否可以傳回 Null。

argumentsPropagateNullability: IEnumerable<Boolean>

布林值清單，指出個別引數是否會傳播 Null 至結果。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

適用於

Function(SqlExpression, String, IEnumerable<SqlExpression>, Boolean, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

建立新的 SqlFunctionExpression ，表示 SQL 樹狀結構中的函式呼叫。

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, bool instancePropagatesNullability, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression Function (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, bool instancePropagatesNullability, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Function : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * bool * seq<bool> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Function Function (instance As SqlExpression, name As String, arguments As IEnumerable(Of SqlExpression), nullable As Boolean, instancePropagatesNullability As Boolean, argumentsPropagateNullability As IEnumerable(Of Boolean), returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpression

參數

instance: SqlExpression

套用函式的運算式。

name: String

函數的名稱。

arguments: IEnumerable<SqlExpression>

函式的引數。

nullable: Boolean

bool 值，指出此函式是否可以傳回 Null。

instancePropagatesNullability: Boolean

值，指出實例是否將 Null 傳播至結果。

argumentsPropagateNullability: IEnumerable<Boolean>

布林值清單，指出個別引數是否會傳播 Null 至結果。

returnType: Type

運算式的 Type。

typeMapping: RelationalTypeMapping

與 RelationalTypeMapping 運算式相關聯的。

傳回

SqlFunctionExpression

運算式，表示 SQL 樹狀結構中的函式呼叫。

適用於

共用方式為

ISqlExpressionFactory.Function 方法

定義

多載

Function(String, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(SqlExpression, String, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(String, String, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(SqlExpression, String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(String, String, IEnumerable<SqlExpression>, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(String, String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

參數

傳回

適用於

Function(SqlExpression, String, IEnumerable<SqlExpression>, Boolean, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

參數

傳回

適用於

其他資源