救急，这是什么错误？？？

[huyueyou]

ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLConnect@28
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLAllocConnect@8
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLAllocEnv@4
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLFreeEnv@4
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLFreeConnect@4
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLDisconnect@4
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLFreeStmt@8
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLFreeStmt@8
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLExecDirect@12
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLExecDirect@12
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLAllocStmt@8
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLAllocStmt@8
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLExecute@4
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLExecute@4
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLPrepare@12
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLPrepare@12
ODBCDatabase.obj : error LNK2001: unresolved external symbol _SQLError@32
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLFetch@4
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLSetStmtOption@12
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLDescribeCol@36
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLNumResultCols@8
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLExtendedFetch@20
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLSetPos@16
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLGetData@24
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLGetStmtOption@12
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLBindCol@24
ODBCRECORDSET.OBJ : error LNK2001: unresolved external symbol _SQLBindParameter@40
Debug/Book.exe : fatal error LNK1120: 22 unresolved externals
Error executing link.exe.


这又是什么错误？？？



有个try中的CATCH(CDBException,e)
给出了以下错误：



E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2061: syntax error : identifier 'CDBException'
E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2310: catch handlers must specify one type
E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2065: 'e' : undeclared identifier
E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2227: left of '->IsKindOf' must point to class/struct/union
E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2653: 'CDBException' : is not a class or namespace name
E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2065: 'classCDBException' : undeclared identifier
E:\VC学习\数据库\Book\BookDlg.cpp(237) : error C2440: '=' : cannot convert from 'int' to 'class CException *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
E:\VC学习\数据库\Book\BookDlg.cpp(239) : error C2227: left of '->ReportError' must point to class/struct/union
E:\VC学习\数据库\Book\BookDlg.cpp(242) : error C2317: 'try' block starting on line '233' has no catch handlers
Error executing cl.exe.

拜托高手帮忙了（一个ODBC API程序例子），谢谢了

[nbgyf]

1.不太清楚；

将编译的连接库Share改为或Static改为Share,试试；

2.有个try中的CATCH(CDBException,e)
给出了以下错误：

try
{
}
catch(CDBException *e)
{
delete e;
}

给我62分，我就有颗星了；

解决了问题；

别忘了；

谢谢

[zfive]

odbc32.lib没有找到

[qfpcn]

很多原因会引起第一种连接错误！
第二种错误的原因我估计你没有在BookDlg.cpp中包含相应的头文件！

[hanwg]

（1）在Setiing 中的link里添加静态库odebc32.lib
（2）在stdafx.h添加 #include <afxdb.h>