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Schema Rowset Support (OLE DB)

The SQL Server Native Client OLE DB provider also supports returning schema information from a linked server when processing Transact-SQL distributed queries.

Note

Although SQL Server supports synonyms, metadata for synonyms is not returned by SQL Server Native Client.

The following tables list schema rowsets and the restriction columns supported by the SQL Server Native Client OLE DB provider.

Schema rowset

Restriction columns

DBSCHEMA_CATALOGS

CATALOG_NAME

DBSCHEMA_COLUMN_PRIVILEGES

All the restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME GRANTOR GRANTEE

DBSCHEMA_COLUMNS

All the restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME

The following additional columns are specific to SQL Server:

  • COLUMN_LCID, which is the locale ID of the collation. COLUMN_LCID is the same value as a Windows LCID.

  • COLUMN_COMPFLAGS defines which comparisons are supported for the collation. The data format is the same as DBPROB_FINDCOMPAREOPS.

  • COLUMN_SORTID, which is the SQL Server sorting style for the collation.

  • COLUMN_TDSCOLLATION, which is the SQL Server collation for the column.

  • IS_COMPUTED, which is VARIANT_TRUE if the column is a computed column and VARIANT_FALSE otherwise.

DBSCHEMA_FOREIGN_KEYS

All restrictions are supported.

PK_TABLE_CATALOG PK_TABLE_SCHEMA PK_TABLE_NAME FK_TABLE_CATALOG FK_TABLE_SCHEMA FK_TABLE_NAME

DBSCHEMA_INDEXES

Restrictions 1, 2, 3, and 5 are supported.

TABLE_CATALOG TABLE_SCHEMA INDEX_NAME TABLE_NAME

DBSCHEMA_PRIMARY_KEYS

All restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME

DBSCHEMA_PROCEDURE_PARAMETERS

All restrictions are supported.

PROCEDURE_CATALOG PROCEDURE_SCHEMA PROCEDURE_NAME PARAMETER_NAME

DBSCHEMA_PROCEDURES

Restrictions 1, 2, and 3 are supported.

PROCEDURE_CATALOG PROCEDURE_SCHEMA PROCEDURE_NAME

DBSCHEMA_PROCEDURES returns only procedures that can be executed by the current user, or for which the current user has been granted VIEW DEFINITION permission.

DBSCHEMA_PROVIDER_TYPES

All restrictions are supported.

DATA_TYPE BEST_MATCH

DBSCHEMA_SCHEMATA

All restrictions are supported.

CATALOG_NAME SCHEMA_NAME SCHEMA_OWNER

DBSCHEMA_STATISTICS

All restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME

DBSCHEMA_TABLE_CONSTRAINTS

All restrictions are supported.

CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE

DBSCHEMA_TABLE_PRIVILEGES

All restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME GRANTOR GRANTEE

DBSCHEMA_TABLES

All restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE

DBSCHEMA_TABLES_INFO

All restrictions are supported.

TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE