MigrationsSqlGenerator.DefaultValue 方法
定义
重要
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重载
| DefaultValue(Object, String, MigrationCommandListBuilder) |
为列的默认约束生成 SQL 片段。 |
| DefaultValue(Object, String, String, MigrationCommandListBuilder) |
为列的默认约束生成 SQL 片段。 |
DefaultValue(Object, String, MigrationCommandListBuilder)
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
为列的默认约束生成 SQL 片段。
protected virtual void DefaultValue (object defaultValue, string defaultValueSql, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);abstract member DefaultValue : obj * string * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.DefaultValue : obj * string * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unitProtected Overridable Sub DefaultValue (defaultValue As Object, defaultValueSql As String, builder As MigrationCommandListBuilder)参数
- defaultValue
- Object
列的默认值。
- defaultValueSql
- String
要用于列的默认约束的 SQL 表达式。
- builder
- MigrationCommandListBuilder
用于添加 SQL 片段的命令生成器。
适用于
DefaultValue(Object, String, String, MigrationCommandListBuilder)
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
- Source:
- MigrationsSqlGenerator.cs
为列的默认约束生成 SQL 片段。
protected virtual void DefaultValue (object defaultValue, string defaultValueSql, string columnType, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);protected virtual void DefaultValue (object? defaultValue, string? defaultValueSql, string? columnType, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);abstract member DefaultValue : obj * string * string * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.DefaultValue : obj * string * string * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unitProtected Overridable Sub DefaultValue (defaultValue As Object, defaultValueSql As String, columnType As String, builder As MigrationCommandListBuilder)参数
- defaultValue
- Object
列的默认值。
- defaultValueSql
- String
要用于列的默认约束的 SQL 表达式。
- columnType
- String
列的存储/数据库类型。
- builder
- MigrationCommandListBuilder
用于添加 SQL 片段的命令生成器。
