Question

Visual Studio 2013：c ++ 如何在这个功能如果connection = false 显示消息并关闭 MessageBoxA（0，“无法连接到数据库！”，“错误”，MB_OK）; :: ExitProcess的（0）;

如果user，password，database = false 显示消息它的ODBC连接，即使我写了User = WrongName和Password = WrongPassword仍在运行应用程序而没有错误连接到数据库，如果我更改Database = MuOnline2应用程序正在进行Loopssss并且甚至没有启动

我的.h文件

$rank1 = "1"; 
$rank2 = "2";
$rank3 = "3";

$array_rank = array();

for($x = 1; $x <= 3; $x++) {
    $array_rank[$x] = ${'rank' . $x};
}

$array_rank_length = count($array_rank); //3

我的.cpp文件

#ifndef _SQLCONNECT_H
#define _SQLCONNECT_H

//-- SQL
#include <sql.h>
#include <sqltypes.h>
#include <sqlext.h>
//------

void ReadySQLConnect();

#define MAX_COLUMNS 100

class SQLCONNECT
{
public:
    SQLCONNECT();
    virtual ~SQLCONNECT();

    BOOL Connect();
    BOOL Execute(LPTSTR lpszStatement, ...);
    void Close();
    void GetAsString(LPTSTR ColName, LPTSTR pOutBuffer);
    DWORD GetAsInteger(LPTSTR ColName);
    QWORD GetAsInteger64(LPTSTR ColName);
    float GetAsFloat(LPTSTR ColName);
    void Disconnect();
    int GetAsBinary(LPSTR lpszStatement, LPBYTE OUT lpszReturnBuffer);
    SQLRETURN Fetch();
    int GetResult(int iIndex);
    QWORD GetResult64(int iIndex);
    void SetAsBinary(LPTSTR lpszStatement, LPBYTE lpBinaryBuffer, SQLUINTEGER BinaryBufferSize);
    DWORD GetRowCount();

    BOOL ReConnect();

private:
    int FindIndex(LPTSTR ColName);
    void Diagnosis(char* Query);

protected:
    SQLHANDLE m_hEnviroment;
    SQLHANDLE m_hConnection;
    SQLHANDLE m_hStmt;
    TCHAR m_szUser[64];
    TCHAR m_szPassword[64];
    TCHAR m_szDatabase[64];
    SQLINTEGER m_RowCount;
    SQLSMALLINT m_ColCount;
    SQLTCHAR m_SQLColName[MAX_COLUMNS][30];
    TCHAR m_SQLData[MAX_COLUMNS][256];
    SQLINTEGER m_SQLDataLen[MAX_COLUMNS];

};
extern SQLCONNECT cSQL;

void ReadyTableInstallation();

#endif

连接返回失败ODBC

0 个答案: