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Oracle® Provider for OLE DB Developer's Guide
11g Release 1 (11.1)

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A Provider-Specific Information

This appendix describes OLE DB information that is specific to Oracle Provider for OLE DB. For generic OLE DB information that includes a detailed listing of all OLE DB properties and interfaces, see the Microsoft OLE DB Programmer's Reference Guide.

This appendix contains these topics:

A.1 Data Type Mappings in Rowsets and Parameters

This section lists the data type mapping between Oracle data types and OLE DB-defined types. Oracle Provider for OLE DB represents Oracle data types by using certain OLE DB-defined data types in the rowset as well as in parameters. OLE DB-defined types are also mapped to an Oracle data type when creating tables.

Each Oracle data type is mapped to a specific OLE DB data type, as shown in Table A-1. This correspondence is used when data type information is retrieved from an Oracle Database.

Table A-1 Data Type Mappings

Oracle Data Type OLE DB Data Type - Regular (NonUnicode) Mode OLE DB Data Type - Unicode Mode

BFILE

DBTYPE_BYTES

DBTYPE_BYTES

BINARY_FLOAT

DBTYPE_R4

DBTYPE_R4

BINARY_DOUBLE

DBTYPE_R8

DBTYPE_R8

BLOB

DBTYPE_BYTES

DBTYPE_BYTES

CHAR

DBTYPE_STR

DBTYPE_WSTR

CLOB

DBTYPE_STR

DBTYPE_WSTR

DATE

DBTYPE_DBTIMESTAMP

DBTYPE_DBTIMESTAMP

FLOAT

DBTYPE_R8

DBTYPE_R8

INTERVAL DAY TO SECOND

DBTYPE_STR

DBTYPE_WSTR

INTERVAL YEAR TO MONTH

DBTYPE_STR

DBTYPE_WSTR

LONG

DBTYPE_STR

DBTYPE_WSTR

LONG RAW

BTYPE_BYTES

DBTYPE_BYTES

NCHAR

DBTYPE_STR

DBTYPE_WSTR

NCLOB

DBTYPE_STR

DBTYPE_WSTR

NUMBER

DBTYPE_VARNUMERIC

DBTYPE_VARNUMERIC

NUMBER(p,s)

DBTYPE_NUMERIC

DBTYPE_NUMERIC

NVARCHAR2

DBTYPE_STR

DBTYPE_WSTR

RAW

DBTYPE_BYTES

DBTYPE_BYTES

ROWID

DBTYPE_STR

DBTYPE_STR

TIMESTAMP

DBTYPE_DBTIMESTAMP

DBTYPE_DBTIMESTAMP

TIMESTAMP WITH TIME ZONE

DBTYPE_DBTIMESTAMP

DBTYPE_DBTIMESTAMP

TIMESTAMP WITH LOCAL TIME ZONE

DBTYPE_DBTIMESTAMP

DBTYPE_DBTIMESTAMP

VARCHAR

DBTYPE_STR

DBTYPE_WSTR


A.2 Properties Supported

This section lists the properties supported by Oracle Provider for OLE DB. The read/write status and initial values are noted.

A.2.1 Data Source Properties

Table A-2 lists data source properties.

Table A-2 DBPROPSET_DATASOURCE Properties

Property Status Initial Value

DBPROP_CURRENTCATALOG

READ-ONLY

NULL


A.2.2 DataSourceInfo Properties

Table A-3 lists DataSourceInfo properties.

Table A-3 DBPROPSET_DATASOURCEINFO Properties

Property Status Initial Value

DBPROP_ACTIVESESSIONS

READ-ONLY

0, Unlimited sessions

DBPROP_ASYNCTXNABORT

READ-ONLY

VARIANT_FALSE

DBPROP_ASYNCTXNCOMMIT

READ-ONLY

VARIANT_FALSE

DBPROP_BYREFACCESSORS

READ-ONLY

VARIANT_TRUE

DBPROP_CATALOGLOCATION

READ-ONLY

DBPROPVAL_CL_END

DBPROP_CATALOGTERM

READ-ONLY

"Database link"

DBPROP_CATALOGUSAGE

READ-ONLY

DBPROPVAL_CU_DML_STATEMENTS

DBPROP_COLUMNDEFINITION

READ-ONLY

DBPROPVAL_CD_NOTNULL

DBPROP_CONCATNULLBEHAVIOR

READ-ONLY

DBPROPVAL_CB_NON_NULL

DBPROP_CONNECTIONSTATUS

READ-ONLY

DBPROPVAL_CS_INITIALIZED

DBPROP_DATASOURCENAME

READ-ONLY

" ", set at run time

DBPROP_DATASOURCEREADONLY

READ-ONLY

VARIANT_FALSE

DBPROP_DBMSNAME

READ-ONLY

" ", set at run time

DBPROP_DBMSVER

READ-ONLY

set at run time

DBPROP_DSOTHREADMODEL

READ/WRITE

DBPROPVAL_RT_FREETHREAD

DBPROP_GROUPBY

READ-ONLY

DBPROPVAL_GB_CONTAINS_SELECT

DBPROP_HETEROGENEOUSTABLES

READ-ONLY

DBPROPVAL_HT_DIFFERENT_CATALOGS

DBPROP_IDENTIFIERCASE

READ-ONLY

DBPROPVAL_IC_UPPER

DBPROP_MAXINDEXSIZE

READ-ONLY

0, limit unknown - depends on block size

DBPROP_MAXOPENCHAPTERS

READ-ONLY

0, not supported

DBPROP_MAXORSINFILTER

READ-ONLY

0, not supported

DBPROP_MAXROWSIZE

READ-ONLY

0, no limit

DBPROP_MAXROWSIZEINCLUDESBLOB

READ-ONLY

VARIANT_FALSE

DBPROP_MAXSORTCOLUMNS

READ-ONLY

0, not supported

DBPROP_MAXTABLESINSELECT

READ-ONLY

0, no limit

DBPROP_MULTIPLEPARAMSETS

READ-ONLY

VARIANT_TRUE

DBPROP_MULTIPLERESULTS

READ-ONLY

DBPROP_MR_SUPPORTED | DBPROPVAL__MR_CONCURRENT

DBPROP_MULTIPLESTORAGEOBJECTS

READ-ONLY

VARIANT_FALSE

DBPROP_MULTITABLEUPDATE

READ-ONLY

VARIANT_FALSE

DBPROP_NULLCOLLATION

READ-ONLY

DBPROPVAL_NC_HIGH

DBPROP_OLEOBJECTS

READ-ONLY

DBPROPVAL_OO_BLOB

DBPROP_ORDERBYCOLUMNSINSELECT

READ-ONLY

VARIANT_FALSE

DBPROP_OUTPUTPARAMETERAVAILABILITY

READ-ONLY

DBPROPVAL_OA_ATEXECUTE

DBPROP_PERSISTENTIDTYPE

READ-ONLY

DBPROPVAL_PT_NAME

DBPROP_PREPAREABORTBEHAVIOR

READ-ONLY

DBPROPVAL_CB_PRESERVE

DBPROP_PREPARECOMMITBEHAVIOR

READ-ONLY

DBPROPVAL_CB_PRESERVE

DBPROP_PROCEDURETERM

READ-ONLY

"PL/SQL Stored Procedure"

DBPROP_PROVIDERFRIENDLYNAME

READ-ONLY

"Oracle Provider for OLE DB"

DBPROP_PROVIDERNAME

READ-ONLY

OraOLEDBver.dll

DBPROP_PROVIDEROLEDBVER

READ-ONLY

"02.01"

DBPROP_PROVIDERVER

READ-ONLY

set to current OraOLEDB version

DBPROP_QUOTEDIDENTIFIERCASE

READ-ONLY

DBPROPVAL_IC_SENSITIVE

DBPROP_ROWSETCONVERSIONSONCOMMAND

READ-ONLY

VARIANT_TRUE

DBPROP_SCHEMATERM

READ-ONLY

"Owner"

DBPROP_SCHEMAUSAGE

READ-ONLY

DBPROPVAL_SU_DML_STATEMENTS |DBPROPVAL_SU_TABLE_DEFINITION |DBPROPVAL_SU_INDEX_DEFINITION |DBPROPVAL_SU_PRIVILEGE_DEFINITION

DBPROP_SERVERNAME

READ-ONLY

" ", set at run time

DBPROP_SORTONINDEX

READ-ONLY

VARIANT_FALSE

DBPROP_SQLSUPPORT

READ-ONLY

DBPROPVAL_SQL_ODBC_MINIMUM |DBPROPVAL_SQL_ANSI92_ENTRY |DBPROPVAL_SQL_ESCAPECLAUSES

DBPROP_STRUCTUREDSTORAGE

READ-ONLY

DBPROPVAL_SS_ISEQUENTIAL_STREAM

DBPROP_SUBQUERIES

READ-ONLY

DBPROPVAL_SQ_CORRELATEDSUBQUERIES

DBPROP_SUPPORTEDTXNDDL

READ-ONLY

DBPROPVAL_TC_DDL_COMMIT

DBPROP_SUPPORTEDTXNISOLEVELS

READ-ONLY

DBPROPVAL_TI_CURSORSTABILITY |DBPROPVAL_TI_READCOMMITTED

DBPROP_SUPPORTEDTXNISORETAIN

READ-ONLY

DBPROPVAL_TR_DONTCARE

DBPROP_TABLETERM

READ-ONLY

"Table"

DBPROP_USERNAME

READ-ONLY

" ", set at run time


A.2.3 Initialization and Authorization Properties

Table A-4 lists initialization and authorization properties.

Table A-4 DBPROPSET_DBINIT Properties

Property Status Initial Value

DBPROP_AUTH_PERSIST_SENSITIVE_AUTHINFO

READ-ONLY

VARIANT_FALSE

DBPROP_AUTH_USERID

READ/WRITE

User ID

DBPROP_INIT_DATASOURCE

READ/WRITE

Connect string

DBPROP_INIT_HWND

READ/WRITE

Window handle for prompt

DBPROP_INIT_LCID

READ/WRITE

LCID of system

DBPROP_INIT_OLEDBSERVICES

READ/WRITE

DBPROPVAL_OS_ENABLEALL

DBPROP_INIT_PROMPT

READ/WRITE

DBPROMPT_NOPROMPT


A.2.4 Session Properties

Table A-5 lists session properties.

Table A-5 DBPROPSET_SESSION Properties

Property Status Initial Value

DBPROP_SESS_AUTOCOMMITISOLEVELS

READ-ONLY

DBPROPVAL_TI_CURSORSTABILITY |DBPROPVAL_TI_READCOMMITTED


A.2.5 Rowset Properties

Table A-6 lists rowset properties.

Table A-6 DBPROPSET_ROWSET Properties

Property Status Initial Value

DBPROP_ABORTPRESERVE

READ/WRITE

VARIANT_TRUE

DBPROP_ACCESSORORDER

READ-ONLY

DBPROP_AO_RANDOM

DBPROP_APPENDONLY

READ-ONLY

VARIANT_FALSE

DBPROP_BLOCKINGSTORAGEOBJECTS

READ-ONLY

VARIANT_FALSE

DBPROP_BOOKMARKINFO

READ-ONLY

0

DBPROP_BOOKMARKS

READ/WRITE

VARIANT_FALSE

DBPROP_BOOKMARKSKIPPED

READ/WRITE

VARIANT_TRUE

DBPROP_BOOKMARKTYPE

READ-ONLY

DBPROP_BMK_NUMERIC

DBPROP_CACHEDEFERRED

READ-ONLY

VARIANT_FALSE

DBPROP_CANFETCHBACKWARDS

READ/WRITE

VARIANT_FALSE

DBPROP_CANHOLDROWS

READ/WRITE

VARIANT_FALSE

DBPROP_CANSCROLLBACKWARDS

READ/WRITE

VARIANT_FALSE

DBPROP_CHANGEINSERTEDROWS

READ-ONLY

VARIANT_TRUE

DBPROP_CLIENTCURSOR

READ/WRITE

VARIANT_TRUE

DBPROP_COLUMNRESTRICT

READ-ONLY

VARIANT_TRUE

DBPROP_COMMANDTIMEOUT

READ/WRITE

0, currently not operational

DBPROP_COMMITPRESERVE

READ/WRITE

VARIANT_TRUE

DBPROP_DEFERRED

READ-ONLY

VARIANT_TRUE

DBPROP_DELAYSTORAGEOBJECTS

READ-ONLY

VARIANT_TRUE, no delayed update

DBPROP_FINDCOMPAREOPS

READ-ONLY

DBPROPVAL_CO_EQUALITY | DBPROPVAL_CO_STRING |DBPROPVAL_CO_CASESENSITIVE | DBPROPVAL_CO_CASEINSENSITIVE | DBPROPVAL_CO_CONTAINS |DBPROPVAL_CO_BEGINSWITH

DBPROP_HIDDENCOLUMNS

READ-ONLY

0

DBPROP_IACCESSOR

READ-ONLY

VARIANT_TRUE

DBPROP_ICOLUMNSINFO

READ-ONLY

VARIANT_TRUE

DBPROP_ICOLUMNSROWSET

READ/WRITE

VARIANT_TRUE

DBPROP_ICONNECTIONPOINTCONTAINER

READ-ONLY

VARIANT_TRUE

DBPROP_ICONVERTTYPE

READ-ONLY

VARIANT_TRUE

DBPROP_IMMOBILEROWS

READ-ONLY

VARIANT_TRUE

DBPROP_IMULTIPLERESULTS

READ/WRITE

VARIANT_TRUE

DBPROP_IROWSET

READ-ONLY

VARIANT_TRUE

DBPROP_IROWSETCHANGE

READ/WRITE

VARIANT_FALSE

DBPROP_IROWSETFIND

READ/WRITE

VARIANT_FALSE

DBPROP_IROWSETIDENTITY

READ-ONLY

VARIANT_TRUE

DBPROP_IROWSETINFO

READ-ONLY

VARIANT_TRUE

DBPROP_IROWSETLOCATE

READ/WRITE

VARIANT_FALSE

DBPROP_IROWSETREFRESH

READ/WRITE

VARIANT_FALSE

DBPROP_IROWSETSCROLL

READ/WRITE

VARIANT_FALSE

DBPROP_IROWSETUPDATE

READ/WRITE

VARIANT_FALSE

DBPROP_ISEQUENTIALSTREAM

READ/WRITE

VARIANT_TRUE

DBPROP_ISUPPORTERRORINFO

READ/WRITE

VARIANT_TRUE

DBPROP_LITERALBOOKMARKS

READ-ONLY

VARIANT_FALSE

DBPROP_LITERALIDENTITY

READ-ONLY

VARIANT_FALSE

DBPROP_LOCKMODE

READ-ONLY

DBPROPVAL_LM_NONE

DBPROP_MAXOPENROWS

READ/WRITE

0, No limit

DBPROP_MAXPENDINGROWS

READ-ONLY

0, No limit

DBPROP_MAXROWS

READ/WRITE

0

DBPROP_MAXROWSIZE

READ-ONLY

0

DBPROP_MAXROWSIZEINCLUDESBLOB

READ-ONLY

VARIANT_FALSE

DBPROP_NOTIFICATIONGRANULARITY

READ/WRITE

DBPROPVAL_NT_MULTIPLEROWS

DBPROP_NOTIFICATIONPHASES

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYCOLUMNSET

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYROWDELETE

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYROWFIRSTCHANGE

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO

DBPROP_NOTIFYROWINSERT

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYROWRESYNCH

READ/WRITE

DBPROPVAL_NP_OKTODO |DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER

DBPROP_NOTIFYROWSETRELEASE

READ/WRITE

DBPROPVAL_NP_OKTODO |DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER

DBPROP_NOTIFYROWSETFETCHPOSITIONCHANGE

READ/WRITE

DBPROPVAL_NP_OKTODO |DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER

DBPROP_NOTIFYROWUNDOCHANGE

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYROWUNDODELETE

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYROWUNDOINSERT

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_NOTIFYROWUNDOUPDATE

READ/WRITE

DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO |DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT

DBPROP_ORDEREDBOOKMARKS

READ-ONLY

VARIANT_TRUE

DBPROP_OTHERINSERT

READ-ONLY

VARIANT_FALSE

DBPROP_OTHERUPDATEDELETE

READ-ONLY

VARIANT_FALSE

DBPROP_OWNINSERT

READ-ONLY

VARIANT_TRUE

DBPROP_OWNUPDATEDELETE

READ-ONLY

VARIANT_TRUE

DBPROP_QUICKRESTART

READ/WRITE

VARIANT_FALSE

DBPROP_REENTRANTEVENTS

READ-ONLY

VARIANT_FALSE

DBPROP_REMOVEDELETED

READ-ONLY

VARIANT_TRUE

DBPROP_REPORTMULTIPLECHANGES

READ-ONLY

VARIANT_FALSE

DBPROP_RETURNPENDINGINSERTS

READ/WRITE

VARIANT_TRUE

DBPROP_ROWRESTRICT

READ/WRITE

VARIANT_FALSE

DBPROP_ROWTHREADMODEL

READ-ONLY

DBPROPVAL_RT_FREETHREAD

DBPROP_SERVERCURSOR

READ/WRITE

VARIANT_FALSE

DBPROP_SERVERDATAONINSERT

READ/WRITE

VARIANT_TRUE

DBPROP_STRONGIDENTITY

READ/WRITE

VARIANT_TRUE

DBPROP_TRANSACTEDOBJECT

READ-ONLY

VARIANT_TRUE

DBPROP_UNIQUEROWS

READ/WRITE

VARIANT_FALSE

DBPROP_UPDATABILITY

READ/WRITE

DBPROPVAL_UP_CHANGE | DBPROPVAL_UP_DELETE | DBPROPVAL_UP_INSET


A.2.5.1 Rowset Property Implications

Oracle Provider for OLE DB sets other necessary properties if a particular property is set to VARIANT_TRUE.

  • If DBPROP_IROWSETLOCATE is set to VARIANT_TRUE, then the following properties are also set to VARIANT_TRUE:

    • DBPROP_IROWSETIDENTITY

    • DBPROP_CANHOLDROWS

    • DBPROP_BOOKMARKS

    • DBPROP_CANFETCHBACKWARDS

    • DBPROP_CANSCROLLBACKWARDS

  • If DBPROP_IROWSETSCROLL is set to VARIANT_TRUE, then the following properties are also set to VARIANT_TRUE:

    • DBPROP_IROWSETIDENTITY

    • DBPROP_IROWSETLOCATE

    • DBPROP_CANHOLDROWS

    • DBPROP_BOOKMARKS

    • DBPROP_CANFETCHBACKWARDS

    • DBPROP_CANSCROLLBACKWARDS

  • If DBPROP_IROWSETUPDATE is set to VARIANT_TRUE, then the DBPROP_IROWSETCHANGE property is also set to VARIANT_TRUE.

A.3 Interfaces Supported

This section identifies the OLE DB interfaces that are supported by Oracle Provider for OLE DB.

A.3.1 Data Source

   CoType TDataSource {
      interface IDBCreateSession;
      interface IDBInitialize;
      interface IDBProperties;
      interface IPersist;
      interface IDBInfo;
      interface ISupportErrorInfo;
   }

A.3.2 Session

   CoType TSession {
      interface IGetDataSource;
      interface IOpenRowset;
      interface ISessionProperties;
      interface IDBCreateCommand;
      interface IDBSchemaRowset;
      interface ISupportErrorInfo;
      interface ITransactionJoin;
      interface ITransactionLocal;
      interface ITransaction;
   }

A.3.3 Command

   CoType TCommand {
      interface IAccessor;
      interface IColumnsInfo;
      interface ICommand;
      interface ICommandProperties;
      interface ICommandText;
      interface IConvertType;
      interface IColumnsRowset;
      interface ICommandPrepare;
      interface ICommandWithParameters;
      interface ISupportErrorInfo;
   }

A.3.4 Rowset

   CoType TRowset {
      interface IAccessor;
      interface IColumnsInfo;
      interface IConvertType;
      interface IRowset;
      interface IRowsetInfo;
      interface IColumnsRowset;
      interface IConnectionPointContainer;
      interface IRowsetChange;
      interface IRowsetFind;
      interface IRowsetIdentity;
      interface IRowsetLocate;
      interface IRowsetRefresh;
      interface IRowsetScroll;
      interface IRowsetUpdate;
      interface ISupportErrorInfo;
   }

A.3.5 Multiple Results

   CoType TMultipleResults {
      interface IMultipleResults;
      interface ISupportErrorInfo;
   }

A.3.6 Transaction Options

   CoType TTransactionOptions {
      interface ITransactionOptions;
      interface ISupportErrorInfo;
   }

A.3.7 Custom Error Object

   CoType TCustomErrorObject {
      interface IErrorLookup;
   }

A.4 MetaData Columns Supported

DBTYPE_BASECOLUMNNAME, DBTYPE_BASETABLENAME, and DBTYPE_BASESCHEMANAME metadata columns are not populated for read-only recordsets. OraOLEDB creates a read-only recordset for server cursor for SQL queries with DISTINCT or UNIQUE keywords. OraOLEDB also creates a read-only recordset for server cursor for JOIN queries.

The following metadata columns are supported by the column rowset of OraOLEDB:

A.5 OraOLEDB Tracing

OraOLEDB provides the ability to trace the interface calls for debugging purposes. This feature has been provided to assist Oracle Support Services in debugging customer issues.

The provider can be configured to record the following information:

A.5.1 Registry Setting for Tracing Calls

To trace the interface calls, you must configure the following registry values for HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\KEY_HOMENAME\OLEDB\:

  • TraceFileName

    Valid Value: Any valid path and file name

    TraceFileName specifies the file name that is to be used for logging trace information. If TraceOption is set to 0, the name is used as is. However, if TraceOption is 1, then the thread ID is appended to the file name provided. See "TraceOption" for more information.

  • TraceCategory

    Valid Values:

    • 0 = None

    • 1 = OLEDB Interface method entry

    • 2 = OLEDB Interface method exit

    • 4 = Distributed Transaction Enlistment and Delistment

    TraceCategory specifies the information that is to be traced. Combinations of different tracing categories can be made by adding the valid values. For example, set TraceCategory to 3 to trace all OLE DB interface method entries and exits.

  • TraceLevel

    Valid Values:

    • 0 = None

    • 1 = Data Source object

    • 2 = Session object

    • 4 = Command object

    • 8 = Rowset object

    • 16 = Error object

    • 64 = Multiple Results Object

    TraceLevel specifies the OLE DB objects to be traced. Because tracing all the entry and exit calls for all the OLE DB objects can be excessive, TraceLevel is provided to limit tracing to a single or multiple OLE DB objects. To obtain tracing on multiple objects, add the valid values. For example, if TraceLevel is set to 12 and TraceCategory is set to 3, the trace file will only contain method entry and exit for Command and Rowset objects.

    The TraceLevel value must be set to session object (2) to trace global transaction enlistment and delistment information.

  • TraceOption

    Valid Values:

    • 0 = Single trace file

    • 1 = Multiple trace files

    TraceOption specifies whether to log trace information in single or multiple files for each Thread ID. If a single trace file is specified, the file name specified in TraceFileName is used. If multiple trace file is requested, a Thread ID is appended to the file name provided to create a trace file for each thread.