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DMSCHEMA_MINING_STRUCTURES Rowset

Enumerates information about the mining structures in the current catalog.

The DMSCHEMA_MINING_STRUCTURES rowset contains the following columns.

Column name

Type indicator

Length

Description

STRUCTURE_CATALOG

DBTYPE_WSTR

The catalog name.

STRUCTURE_SCHEMA

DBTYPE_WSTR

The unqualified schema name. NULL if schemas are not supported by the provider.

STRUCTURE_NAME

DBTYPE_WSTR

The structure name. This column cannot contain NULL.

STRUCTURE_GUID

DBTYPE_GUID

A GUID that uniquely identifies the structure. NULL if not supported by the provider.

DESCRIPTION

DBTYPE_WSTR

A concise description of the structure. NULL if no description is associated with the structure.

STRUCTURE_PROPID

DBTYPE_UI4

The property ID of the structure. NULL if not supported by the provider.

DATE_CREATED

DBTYPE_DBTIMESTAMP

The date when the structure was created. NULL if not available from the provider.

DATE_MODIFIED

DBTYPE_DBTIMESTAMP

The date when the structure was last modified. NULL if not available from the provider.

CREATION_STATEMENT

DBTYPE_WSTR

(Optional) The statement that was used to create the original data mining model.

IS_POPULATED

DBTYPE_BOOL

A Boolean that indicates whether the structure is populated.

VARIANT_TRUE if the structure is populated; VARIANT_FALSE otherwise.

LAST_PROCESSED

DBTYPE_DBTIMESTAMP

The date when the structure was last processed. NULL if not available from the provider.

HOLDOUT_MAXPERCENT

DBTYPE_ UI1

User-specified value that indicates the maximum percentage of the input cases held out as the test set.

0 or NULL indicates no limit.

HOLDOUT_MAXCASES

DBTYPE_UI8

User-specified value that indicates the maximum number of the input cases held out as the test set.

0 or NULL indicates no limit.

HOLDOUT_SEED

DBTYPE_UI8

User-specified value that is used as the seed for repeatable partitioning.

0 indicates that a hash of the mining structure ID is used as the seed.

HOLDOUT_ACTUAL_SIZE

DBTYPE_UI8

If the mining structure is processed, this indicates the actual size of the test data set, expressed in number of cases.

NULL indicates that the mining structure is not processed.

The rowset is sorted on STRUCTURE_CATALOG, STRUCTURE_SCHEMA, STRUCTURE_NAME.

The DMSCHEMA_MINING_STRUCTURES rowset can be restricted on the columns listed in the following table.

Column name

Type indicator

Restriction State

STRUCTURE_CATALOG

DBTYPE_WSTR

Optional.

STRUCTURE_SCHEMA

DBTYPE_WSTR

Optional.

STRUCTURE_NAME

DBTYPE_WSTR

Optional.

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