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cmdcst.idl：源码内容

							//-----------------------------------------------------------------------------
// File:			cmdcst.idl
//
// Copyright:		Copyright (c) Microsoft Corporation          
//
// Contents: 		OLE DB interface definition
//
// Comments: 		
//
//-----------------------------------------------------------------------------
#include "idlmulti.h"
//  
    
#if( OLEDBVER >= 0x0200 )
	REMOTED_INTERFACE(0c733a4e-2a1c-11ce-ade5-00aa0044773d)
#else
	LOCAL_INTERFACE(0c733a4e-2a1c-11ce-ade5-00aa0044773d)
#endif
    
interface ICommandCost : IUnknown {
typedef DWORD DBRESOURCEKIND;
enum DBRESOURCEKINDENUM {
	DBRESOURCE_INVALID		= 0,
	DBRESOURCE_TOTAL		= 1,
	DBRESOURCE_CPU			= 2,
	DBRESOURCE_MEMORY		= 3,
	DBRESOURCE_DISK			= 4,
	DBRESOURCE_NETWORK		= 5,
	DBRESOURCE_RESPONSE		= 6,
	DBRESOURCE_ROWS			= 7,
	DBRESOURCE_OTHER		= 8,
};
typedef DWORD DBCOSTUNIT;
enum DBCOSTUNITENUM {
	DBUNIT_INVALID			= 0x00000,
	DBUNIT_WEIGHT			= 0x00001,
	DBUNIT_PERCENT			= 0x00002,
	DBUNIT_MAXIMUM			= 0x00004,
	DBUNIT_MINIMUM			= 0x00008,
	DBUNIT_MICRO_SECOND		= 0x00010,
	DBUNIT_MILLI_SECOND		= 0x00020,
	DBUNIT_SECOND			= 0x00040,
	DBUNIT_MINUTE			= 0x00080,
	DBUNIT_HOUR				= 0x00100,
	DBUNIT_BYTE				= 0x00200,
	DBUNIT_KILO_BYTE		= 0x00400,
	DBUNIT_MEGA_BYTE		= 0x00800,
	DBUNIT_GIGA_BYTE		= 0x01000,
	DBUNIT_NUM_MSGS			= 0x02000,
	DBUNIT_NUM_LOCKS		= 0x04000,
	DBUNIT_NUM_ROWS			= 0x08000,
	DBUNIT_OTHER			= 0x10000,
};
typedef struct tagDBCOST {
	DBRESOURCEKIND eKind;
	DBCOSTUNIT dwUnits;
	LONG lValue;
} DBCOST;
typedef DWORD DBEXECLIMITS;
enum DBEXECLIMITSENUM {
	DBEXECLIMITS_ABORT		= 1,
	DBEXECLIMITS_STOP		= 2,
	DBEXECLIMITS_SUSPEND	= 3
};
	HRESULT GetAccumulatedCost(
		[in] LPCOLESTR pwszRowsetName,
		[in, out] ULONG * pcCostLimits,
		[out, size_is(,*pcCostLimits)] DBCOST ** prgCostLimits
	);
	HRESULT GetCostEstimate(
		[in] LPCOLESTR pwszRowsetName,
		[out] ULONG * pcCostEstimates,
		[out] DBCOST * prgCostEstimates
	);
	HRESULT GetCostGoals(
		[in] LPCOLESTR pwszRowsetName,
		[out] ULONG * pcCostGoals,
		[out] DBCOST * prgCostGoals
	);
	HRESULT GetCostLimits(
		[in] LPCOLESTR pwszRowsetName,
		[out] ULONG * pcCostLimits,
		[out] DBCOST * prgCostLimits
	);
	HRESULT SetCostGoals(
		[in] LPCOLESTR pwszRowsetName,
		[in] ULONG cCostGoals,
		[in, size_is(cCostGoals)] const DBCOST rgCostGoals[]
	);
	HRESULT SetCostLimits(
		[in] LPCOLESTR pwszRowsetName,
		[in] ULONG cCostLimits,
		[in] DBCOST * prgCostLimits,
		[in] DBEXECLIMITS dwExecutionFlags
	);
}

						