Question

我一直在尝试连接到Azure SQL并从中进行查询。

我收到此错误消息：

Error Image while debug

以下是我使用的完整代码：

#include "stdafx.h"
#include <iostream>
#include <windows.h>
#include <sqltypes.h>
#include <sql.h>
#include <sqlext.h>

using namespace std;

void show_error(unsigned int handletype, const SQLHANDLE& handle)
{
    SQLWCHAR sqlstate[1024];
    SQLWCHAR message[1024];
    if (SQL_SUCCESS == SQLGetDiagRec(handletype, handle, 1, sqlstate, NULL, message, 1024, NULL))
        cout << "Message: " << message << "\nSQLSTATE: " << sqlstate << endl;
}

int main()
{
    SQLHANDLE sqlenvhandle;
    SQLHANDLE sqlconnectionhandle;
    SQLHANDLE sqlstatementhandle;
    SQLRETURN retcode;

    do
    {
        if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &sqlenvhandle))
            break;

        if (SQL_SUCCESS != SQLSetEnvAttr(sqlenvhandle, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, 0))
            break;

        if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_DBC, sqlenvhandle, &sqlconnectionhandle))
            break;

        SQLWCHAR retconstring[1024];
        /*switch (SQLDriverConnect(sqlconnectionhandle, NULL,
            L"Driver={ODBC Driver 10 for SQL Server};Server=tcp:xyz.database.windows.net;Database=ProjectLIT;UID=auser;PWD=zzzzz;Encrypt=yes;TrustServerCertificate=no;Connection Timeout=30;",
            SQL_NTS, retconstring, 1024, NULL, SQL_DRIVER_NOPROMPT)*/
        switch (SQLDriverConnect(sqlconnectionhandle, NULL,
            L"DRIVER={SQL Server};SERVER=xyz.database.windows.net,1433;DATABASE=ProjectLIT;UID=auser;PWD=zzzzz;",
            SQL_NTS, retconstring, 1024, NULL, SQL_DRIVER_NOPROMPT))
        {
        case SQL_SUCCESS_WITH_INFO:
            show_error(SQL_HANDLE_DBC, sqlconnectionhandle);
            break;
        case SQL_INVALID_HANDLE:
        case SQL_ERROR:
            show_error(SQL_HANDLE_DBC, sqlconnectionhandle);
            retcode = -1;
            break;
        default:
            break;
        }

        if (retcode == -1)
            break;

        if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_STMT, sqlconnectionhandle, &sqlstatementhandle))
            break;

        //if (SQL_SUCCESS != SQLExecDirect(sqlstatementhandle, L"SELECT * FROM Emploees_Res", SQL_NTS))
        if (SQL_SUCCESS != SQLExecDirect(sqlstatementhandle, L"SELECT [Internal Email ID] FROM [Emploees_Res] WHERE [Office Acc]=63", SQL_NTS))
        {
            show_error(SQL_HANDLE_STMT, sqlstatementhandle);
            break;
        }
        else
        {
            char name[64];

            while (SQLFetch(sqlstatementhandle) == SQL_SUCCESS)
            {
                SQLGetData(sqlstatementhandle, 1, SQL_C_CHAR, name, 64, NULL);
                cout << name;
            }
        }
    } while (FALSE);
    SQLFreeHandle(SQL_HANDLE_ENV, sqlenvhandle);

}

我认为错误可能在连接字符串中。

有人可以告知需要更正的地方吗？提前谢谢。

Answer 1

非常感谢所有人，

最后得到了解决方案，正如 quentin 所说的那样使用了L宽字符串文字

以下是确切的连接字符串

switch（SQLDriverConnect（sqlconnectionhandle，NULL， L“DRIVER = {SQL Server}; Server = tcp：xyz.database.windows.net，1433; DATABASE = ProjectLIT; UID = auser; PWD = zzzzzz; Encrypt = yes; TrustServerCertificate = no; Connection Timeout = 30;”， SQL_NTS，retconstring，1024，NULL，SQL_DRIVER_NOPROMPT））

尝试连接时出错＆amp;运行查询：消息0085E084 SQLSTATE 0085E88C

1 个答案: