SchemaTableColumn 类

定义

描述数据库表的架构的列元数据。Describes the column metadata of the schema for a database table.

public ref class SchemaTableColumn abstract sealed
public static class SchemaTableColumn
type SchemaTableColumn = class
Public Class SchemaTableColumn
继承
SchemaTableColumn

字段

AllowDBNull

指定是否允许值 DBNullSpecifies whether value DBNull is allowed.

BaseColumnName

指定架构表中的列的名称。Specifies the name of the column in the schema table.

BaseSchemaName

指定架构表中的架构的名称。Specifies the name of the schema in the schema table.

BaseTableName

指定架构表中的表的名称。Specifies the name of the table in the schema table.

ColumnName

指定架构表中的列的名称。Specifies the name of the column in the schema table.

ColumnOrdinal

指定列的序号。Specifies the ordinal of the column.

ColumnSize

指定列的大小。Specifies the size of the column.

DataType

指定列中数据的类型。Specifies the type of data in the column.

IsAliased

指定该列是否具有别名。Specifies whether this column is aliased.

IsExpression

指定该列是否是一个表达式。Specifies whether this column is an expression.

IsKey

指定该列是否是表的一个键。Specifies whether this column is a key for the table.

IsLong

指定该列是否包含 long 型数据。Specifies whether this column contains long data.

IsUnique

指定是否有唯一的约束应用于此列。Specifies whether a unique constraint applies to this column.

NonVersionedProviderType

指定该列特定于无版本提供程序的数据类型。Specifies the non-versioned provider-specific data type of the column.

NumericPrecision

指定列数据的精度(如果是数值数据)。Specifies the precision of the column data, if the data is numeric.

NumericScale

指定列数据的小数位数(如果是数值数据)。Specifies the scale of the column data, if the data is numeric.

ProviderType

指定列的提供程序特定的数据类型。Specifies the provider-specific data type of the column.

适用于

另请参阅