c++读取oracle数据库

可以使用Oracle提供的C++库OCCI来读取Oracle数据库。以下是一个简单的示例代码：

#include "occi.h"
#include <iostream>
#include <string>
using namespace oracle::occi;
using namespace std;

int testOracle(){
    Environment* env;
    try {
        env = Environment::createEnvironment(Environment::DEFAULT);
        cout << "success" << endl;
        string name = "root";
        string pass = "root";
        string srvName = "//171.29.34.41:1521/ORCL";
        Connection* conn = env->createConnection(name, pass, srvName);
        cout << "conn success" << endl;
        Statement* stmt = NULL;
        ResultSet* rs = NULL;
        string sql = "select \"StorageServerPath\" from \"temp\"";
        stmt = conn->createStatement(sql);
        rs = stmt->executeQuery();
        while (rs->next()) {
            cout << rs->getString(1) << endl;
        }
        env->terminateConnection(conn);
    }
    catch (SQLException e) {
        cout << e.what() << endl;
        return -1;
    }
    Environment::terminateEnvironment(env);
    cout << "end!" << endl;
    return 0;
}

int main() {
    testOracle();
    getchar();
    return 0;
}

该示例代码使用OCCI连接Oracle数据库，并执行了一条查询语句，将结果输出到控制台。你可以根据自己的需求修改代码。