c++ - 使用 C++ 将数据连接并插入到 MS Access 表中

Question

我正在从事一个项目，该项目要求我对 MS Access 表执行插入查询。我一直在网上到处搜索，但似乎没有任何效果。任何帮助将不胜感激。此外，我必须为 VS2008 和 Visual C++ 6.0 编写此代码。谢谢

Answer 1

使用ODBC .连接到数据库并执行 INSERT 查询的示例:

#include <stdio.h>
#include <tchar.h>
#include <Windows.h>
#include <sqlext.h>

WCHAR szDSN[] = "Driver={Microsoft Access Driver (*.mdb, *.accdb)};DSN='';DBQ=C:\\users.mdb";

int _tmain(int argc, _TCHAR* argv[])
{    

HENV    hEnv;
HDBC    hDbc;

/* ODBC API return status */
RETCODE rc;

int     iConnStrLength2Ptr;
WCHAR    szConnStrOut[256];

WCHAR* query = L"INSERT INTO [Users] (name,surname) VALUES ('John','Smith');";

HSTMT           hStmt;

/* Allocate an environment handle */
rc = SQLAllocEnv(&hEnv);
/* Allocate a connection handle */
rc = SQLAllocConnect(hEnv, &hDbc);

/* Connect to the database */
rc = SQLDriverConnect(hDbc, NULL, (WCHAR*)szDSN, 
    SQL_NTS, (WCHAR*)szConnStrOut, 
    255, (SQLSMALLINT*)&iConnStrLength2Ptr, SQL_DRIVER_NOPROMPT);
if (SQL_SUCCEEDED(rc)) 
{

    wprintf(L"Successfully connected to database. Data source name: \n  %s\n", 
        szConnStrOut);  

    /* Prepare SQL query */
    wprintf(L"SQL query:\n  %s\n", query);

    rc = SQLAllocStmt(hDbc,&hStmt);
    rc = SQLPrepare(hStmt, query, SQL_NTS);   

    /* Excecute the query */
    rc = SQLExecute(hStmt); 
    if (SQL_SUCCEEDED(rc)) 
    {
        wprintf(L"SQL Success\n");
    }
    else{
        wprintf(L"SQL Failed\n");
    }
}
else
{
    wprintf(L"Couldn't connect to %s.\n",szDSN);
}

/* Disconnect and free up allocated handles */
SQLDisconnect(hDbc);
SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
SQLFreeHandle(SQL_HANDLE_ENV, hEnv);

getchar();
return 0;
}

来源:https://learn.microsoft.com/en-us/previous-versions/office/developer/office-2007/cc811599(v=office.12)