odbcinfo.h

《Visual C++ Bible》或者说是《Visual C++ 宝典》的对应的源码文件

#ifndef _ODBCINFO_H_
#define _ODBCINFO_H_


class AFX_EXT_CLASS CODBCInfo
{                           
public:
	CODBCInfo(LPCSTR lpszDSN);

	~CODBCInfo();
	
protected:
	BOOL m_bIsInitialized;	
	
protected:
	SQLHENV m_henv;
	SQLHDBC m_hdbc;
	BOOL m_bIsConnected;
	
public:
	BOOL GetTypeInfo(UINT iDataType, LPCSTR lpszColName, CDBVariant** ppvarValue);
protected:
	CMapWordToOb m_mapDataTypeToDataAttrMap;

protected:
	BOOL InternalGetTypeInfo();
	short GetFieldTypeFromSQLType(short nSQLType);
	void* GetDataBuffer(CDBVariant* pvarValue, short nFieldType, int* pnLen, short nSQLType, UDWORD nPrecision);
	long GetData(SQLHSTMT hstmt, short nFieldIndex, short nFieldType, LPVOID pvData, int nLen, short nSQLType);
};

#endif