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Что означают эти ошибки? | Цитата |
------ Build started: Project: l4v1s23, Configuration: Debug Win32 ------
Compiling...
StudentSQL_.cpp
Linking...
StudentSQL_.obj : error LNK2028: unresolved token (0A00000A) "extern "C" short __stdcall SQLDisconnect(void *)" (?SQLDisconnect@@$$J14YGFPAX@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A00000B) "extern "C" short __stdcall SQLFreeHandle(short,void *)" (?SQLFreeHandle@@$$J18YGFFPAX@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A00000D) "extern "C" short __stdcall SQLGetInfoW(void *,unsigned short,void *,short,short *)" (?SQLGetInfoW@@$$J220YGFPAXG0FPAF@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A000010) "extern "C" short __stdcall SQLGetFunctions(void *,unsigned short,unsigned short *)" (?SQLGetFunctions@@$$J212YGFPAXGPAG@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A000011) "extern "C" short __stdcall SQLConnectW(void *,wchar_t *,short,wchar_t *,short,wchar_t *,short)" (?SQLConnectW@@$$J228YGFPAXPA_WF1F1F@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A000012) "extern "C" short __stdcall SQLSetConnectAttrW(void *,long,void *,long)" (?SQLSetConnectAttrW@@$$J216YGFPAXJ0J@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A000013) "extern "C" short __stdcall SQLSetEnvAttr(void *,long,void *,long)" (?SQLSetEnvAttr@@$$J216YGFPAXJ0J@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2028: unresolved token (0A000014) "extern "C" short __stdcall SQLAllocHandle(short,void *,void * *)" (?SQLAllocHandle@@$$J212YGFFPAXPAPAX@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLDisconnect(void *)" (?SQLDisconnect@@$$J14YGFPAX@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLFreeHandle(short,void *)" (?SQLFreeHandle@@$$J18YGFFPAX@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLGetInfoW(void *,unsigned short,void *,short,short *)" (?SQLGetInfoW@@$$J220YGFPAXG0FPAF@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLGetFunctions(void *,unsigned short,unsigned short *)" (?SQLGetFunctions@@$$J212YGFPAXGPAG@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLConnectW(void *,wchar_t *,short,wchar_t *,short,wchar_t *,short)" (?SQLConnectW@@$$J228YGFPAXPA_WF1F1F@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLSetConnectAttrW(void *,long,void *,long)" (?SQLSetConnectAttrW@@$$J216YGFPAXJ0J@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLSetEnvAttr(void *,long,void *,long)" (?SQLSetEnvAttr@@$$J216YGFPAXJ0J@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
StudentSQL_.obj : error LNK2019: unresolved external symbol "extern "C" short __stdcall SQLAllocHandle(short,void *,void * *)" (?SQLAllocHandle@@$$J212YGFFPAXPAPAX@Z) referenced in function "public: void __clrcall StudentSQL_::startSQL(void)" (?startSQL@StudentSQL_@@$$FQAMXXZ)
C:\Documents and Settings\1\Мои документы\Visual Studio 2008\Projects\l4v1s23\Debug\l4v1s23.exe : fatal error LNK1120: 16 unresolved externals
Build log was saved at "file://c:\Documents and Settings\1\Мои документы\Visual Studio 2008\Projects\l4v1s23\l4v1s23\Debug\BuildLog.htm"
l4v1s23 - 17 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
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| Код |
#include "stdafx.h"
#include "StudentSQL_.h"
void StudentSQL_::startSQL() {
i = 5;
rgbValue = &i;
bufferSize = 1024;
dbName = (wchar_t *)malloc( sizeof(wchar_t)*bufferSize );
OutConnStr = (SQLCHAR * )malloc(255);
OutConnStrLen = (SQLSMALLINT *)malloc(255);
// Allocate environment handle
retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv);
// Set the ODBC version environment attribute
if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
// Allocate connection handle
if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc);
// Set login timeout to 5 seconds
if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
SQLSetConnectAttr(hdbc, SQL_LOGIN_TIMEOUT, (SQLPOINTER)(rgbValue), 0);
// Connect to data source
retcode = SQLConnect(hdbc, (SQLWCHAR*) "source_pubs", SQL_NTS, (SQLWCHAR*) "1", 0, (SQLWCHAR*) "", 0);
// Allocate statement handle
if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
SQLGetFunctions(hdbc, SQL_API_SQLALLOCHANDLE, &AllocEnvExists);
SQLGetFunctions(hdbc, SQL_API_SQLMORERESULTS, &MoreResultsExists);
SQLGetFunctions(hdbc, SQL_API_SQLDRIVERCONNECT, &DriverConnectExists);
SQLGetFunctions(hdbc, SQL_API_SQLROWCOUNT, &RowCountExists);
if (AllocEnvExists && MoreResultsExists && DriverConnectExists \
&& RowCountExists) {
printf("Podderjivayutsya\n - AllocEnvExists\n - MoreResultsExists\n \
\r - DriverConnectExists\n - RowCountExists\n");
/* Continue with application */
_getch();
} else {
_getch();
}
retcode = SQLGetInfo(hdbc, SQL_DATABASE_NAME, dbName, (SQLSMALLINT)bufferSize, (SQLSMALLINT *)&bufferSize);
printf("Imya bazy dannyh\n%s\n", dbName);
_getch();
retcode = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
// Process data
if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
}
SQLDisconnect(hdbc);
}
SQLFreeHandle(SQL_HANDLE_DBC, hdbc);
}
}
SQLFreeHandle(SQL_HANDLE_ENV, henv);
}
}
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| Код |
#include <windows.h>
#include <sqlext.h>
#include <stdio.h>
#include <conio.h>
class StudentSQL_ {
public:
SQLHENV henv;
SQLHDBC hdbc;
SQLHSTMT hstmt;
SQLRETURN retcode;
SQLPOINTER rgbValue;
SQLUSMALLINT AllocEnvExists, MoreResultsExists, DriverConnectExists, RowCountExists;
int i;
int bufferSize;
wchar_t* dbName;
SQLCHAR * OutConnStr;
SQLSMALLINT * OutConnStrLen;
StudentSQL_() {startSQL();}
void startSQL(void);
System::String^ Hello() {return "Hello";}
};
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SQL программа, ошибки на стадии сборки 
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