EnumReferencingKeys Method

Diese Funktion wird in zukünftigen Versionen von Microsoft SQL Server nicht mehr bereitgestellt. Verwenden Sie diese Funktion beim Entwickeln neuer Anwendungen nicht, und planen Sie das Ändern von Anwendungen, in denen es zurzeit verwendet wird.

The EnumReferencingKeys method returns a QueryResults object that enumerates the FOREIGN KEY constraints depending on a candidate key defined on the referenced table.

Syntax

object.EnumReferencingKeys( [ ReferencingTable ] , [ IncludeAll ] )as QueryResults

Parts

• object
  Expression that evaluates to an object in the Applies To list.

• ReferencingTable
  Optional. String that names an existing Microsoft SQL Server table. Restricts result set membership to list only FOREIGN KEY constraints defined on the specified table.

• IncludeAll
  TRUE or FALSE.

Prototype (C/C++)

HRESULT EnumReferencingKeys(
LPSQLDMOQUERYRESULTS* ppResults,
SQLDMO_LPCSTR ReferencingTableName = NULL,
BOOL IncludeAllCandidates = NULL);

Returns

A QueryResults object that contains one result set defined by these columns.

Column	Data type	Description
candidate_key	nvarchar(129)	Name of the FOREIGN KEY constraint depending on a candidate key in the referenced table.
candidate_table	nvarchar(262)	Name of a table on which a FOREIGN KEY constraint is defined.
referenced	bit	When 1, the FOREIGN KEY constraint listed in the result set depends on the table referenced by the Table object used.

Hinweise

When IncludeAll is TRUE, the result set enumerates all user-defined tables in the database. The candidate_key column is NULL for those tables on which a FOREIGN KEY constraint is not defined. The value of the referenced column in the result set determines FOREIGN KEY constraint dependency.

When IncludeAll is FALSE (default), the result set enumerates only those FOREIGN KEY constraints depending on the referenced table.

Applies To:

Table Object