ISqlExpressionFactory.NiladicFunction Method
Definition
Important
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Overloads
| NiladicFunction(String, Boolean, Type, RelationalTypeMapping) |
Creates a new SqlFunctionExpression which represents a niladic function call in a SQL tree. |
| NiladicFunction(String, String, Boolean, Type, RelationalTypeMapping) |
Creates a new SqlFunctionExpression which represents a niladic function call in a SQL tree. |
| NiladicFunction(SqlExpression, String, Boolean, Boolean, Type, RelationalTypeMapping) |
Creates a new SqlFunctionExpression which represents a niladic function call in a SQL tree. |
NiladicFunction(String, Boolean, Type, RelationalTypeMapping)
Creates a new SqlFunctionExpression which represents a niladic function call in a SQL tree.
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression NiladicFunction (string name, bool nullable, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression NiladicFunction (string name, bool nullable, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);abstract member NiladicFunction : string * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpressionPublic Function NiladicFunction (name As String, nullable As Boolean, returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpressionParameters
- name
- String
The name of the function.
- nullable
- Boolean
A bool value indicating whether this function can return null.
- typeMapping
- RelationalTypeMapping
The RelationalTypeMapping associated with the expression.
Returns
An expression representing a function call in a SQL tree.
Applies to
NiladicFunction(String, String, Boolean, Type, RelationalTypeMapping)
Creates a new SqlFunctionExpression which represents a niladic function call in a SQL tree.
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression NiladicFunction (string schema, string name, bool nullable, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression NiladicFunction (string schema, string name, bool nullable, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);abstract member NiladicFunction : string * string * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpressionPublic Function NiladicFunction (schema As String, name As String, nullable As Boolean, returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpressionParameters
- schema
- String
The schema in which the function is defined.
- name
- String
The name of the function.
- nullable
- Boolean
A bool value indicating whether this function can return null.
- typeMapping
- RelationalTypeMapping
The RelationalTypeMapping associated with the expression.
Returns
An expression representing a function call in a SQL tree.
Applies to
NiladicFunction(SqlExpression, String, Boolean, Boolean, Type, RelationalTypeMapping)
Creates a new SqlFunctionExpression which represents a niladic function call in a SQL tree.
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression NiladicFunction (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, bool nullable, bool instancePropagatesNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression NiladicFunction (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string name, bool nullable, bool instancePropagatesNullability, Type returnType, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);abstract member NiladicFunction : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * bool * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpressionPublic Function NiladicFunction (instance As SqlExpression, name As String, nullable As Boolean, instancePropagatesNullability As Boolean, returnType As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlFunctionExpressionParameters
- instance
- SqlExpression
An expression on which the function is applied.
- name
- String
The name of the function.
- nullable
- Boolean
A bool value indicating whether this function can return null.
- instancePropagatesNullability
- Boolean
A value indicating if instance propagates null to result.
- typeMapping
- RelationalTypeMapping
The RelationalTypeMapping associated with the expression.
Returns
An expression representing a function call in a SQL tree.
Applies to
Entity Framework