C++ 连接到 Sage 300 问题

Question

我正在创建一个 C++ 应用程序，它从文件中收集连接字符串和查询，然后连接到数据库并运行查询并打包结果，但我遇到了 Sage 300 的问题，但无论我如何处理连接字符串它不会连接。请看一下，如果我错过了什么请告诉我

Error: Error connecting to the database.

ConnectionString: DSN={CP TIMBERLINE};uid=<User>;pwd=<Password>;
Query: SELECT * from JCM_MASTER__JOB_1

这是我的代码：

   std::ifstream file(filePath);
  if (!file.is_open()) {
      std::ofstream errorFile("Resultsfor_Error.csv", std::ios_base::app);
      errorFile << "Error opening file: " << filePath << std::endl;
      return;
  }

  std::cout << "processPriorityFile Started for " + filePath;

  ThreadData data;
  std::string line;
  while (std::getline(file, line)) {
      if (line.find("Thread_ID:") != std::string::npos) {
          data.threadID = std::stoi(line.substr(line.find(":") + 1));
      }
      else if (line.find("Connectionstring:") != std::string::npos) {
          data.connectionString = line.substr(line.find(":") + 1);
      }
      else if (line.find("Query:") != std::string::npos) {
          data.query = line.substr(line.find(":") + 1);
      }
  }

  std::ofstream outputFile("Resultsfor_" + std::to_string(data.threadID) + ".csv", std::ios_base::app);
  if (!outputFile.is_open()) {
      std::ofstream errorFile("Resultsfor_Error.csv", std::ios_base::app);
      errorFile << "Error creating/opening output CSV file." << std::endl;
      return;
  }

  try {
      // Establish database connection and execute query
      SQLHENV hEnv;
      SQLHDBC hDbc;
      SQLRETURN retcode;

      // Allocate environment handle
      retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv);
      if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
          throw std::runtime_error("Error allocating environment handle.");
      }

      // Set the ODBC version environment attribute
      retcode = SQLSetEnvAttr(hEnv, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, 0);
      if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
          SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
          throw std::runtime_error("Error setting ODBC version attribute.");
      }

      // Allocate connection handle
      retcode = SQLAllocHandle(SQL_HANDLE_DBC, hEnv, &hDbc);
      if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
          SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
          throw std::runtime_error("Error allocating connection handle.");
      }

      // Connect to the database
      retcode = SQLDriverConnectA(hDbc, NULL, (SQLCHAR*)data.connectionString.c_str(), SQL_NTS, NULL, 0, NULL, SQL_DRIVER_NOPROMPT);
      if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
          SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
          SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
          throw std::runtime_error("Error connecting to the database.");
      }

      // Execute the query
      SQLHSTMT hStmt;
      retcode = SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt);
      if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
          SQLDisconnect(hDbc);
          SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
          SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
          throw std::runtime_error("Error allocating statement handle.");
      }

      retcode = SQLExecDirectA(hStmt, (SQLCHAR*)data.query.c_str(), SQL_NTS);
      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);
          throw std::runtime_error("Error executing query.");
      }

      // Process the query results
      SQLSMALLINT numCols;
      retcode = SQLNumResultCols(hStmt, &numCols);
      if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
          throw std::runtime_error("Error retrieving the number of result columns.");
      }

      // Write header
      for (SQLSMALLINT i = 1; i <= numCols; ++i) {
          SQLCHAR colName[256];
          SQLSMALLINT colNameLength;
          retcode = SQLDescribeColA(hStmt, i, colName, sizeof(colName),    &colNameLength, NULL, NULL, NULL, NULL);
          if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) {
              outputFile << "Error describing column: " << i << std::endl;
              continue;
          }
          outputFile << colName;
          if (i < numCols) {
              outputFile << ",";
          }
      }
      outputFile << std::endl;

我已经确认我所拥有的信用是正确的，因为我能够通过 Excel 连接并提取数据。我尝试过不同版本的连接字符串，包括 DBQ 和其他版本

Answer 1

所以我相信我弄清楚了问题，timberline Data ODBC 只是 x32 位，这个 c++ 代码是为 x64 编译的，据我所知，那些人永远无法交谈。