I need help fixing my code in c++. This is my second time coming back for help on this. So far the problem is now that "USE" function doesn't work correctly. In the PDF below, you can see that despite doing "USE db_1;" the program still fails to create a table because no database is being used. There seems to be a problem with my USE case.

Here is my revised code with two files

==== main.cpp ====

#include #include #include #include #include #include #include

#include "table.h"

using namespace std;

void parseInput(const string& input, vector& commands); //parse commands with delimiter void parseCommands(vector& commands, vector

& tables); //execute commands and modify tables string getName(string line); //get name string getTblName(string line); //get table name string getData(string line); //get data

int main(int argc, char* argv[]){

string input; vector commands; vector

tables;

while (input != ".EXIT"){ //main loop cout "; getline(cin, input);

parseInput(input, commands); parseCommands(commands, tables); } return 0; }

//getData function, grabs data return line string getData(string line){ auto it = find(line.begin(), line.end(), '('); line = string(it, line.end()); line = line.substr(1, line.size() - 2); replace(line.begin(), line.end(), ',', '|');

return line; }

//getName function, gets name string getName(string line){ stringstream ss(line); string token; while (getline(ss, token, ' ')){ } return token; }

//getTblName, gets table name string getTblName(string line){ stringstream ss(line); string token; int i = 0; while (getline(ss, token, ' ') && i & commands){ stringstream ss(input); string token; while (getline(ss, token, ';')){ commands.push_back(token); } }

//parseCommands function, handles the database systems void parseCommands(vector& commands, vector

& tables){ string currDB;

for (auto i : commands){ if (i.find("CREATE DATABASE") != -1){ string dbName = getName(i); const int direrr = system(("mkdir " + dbName).c_str()); if (direrr == 0) cout

size_t index = it - tables.begin(); //finds table index if it exists if (it != tables.end()){ cout

commands.clear(); }

==== table.h ====

#pragma once

#include #include

using namespace std;

class table{ public: string name; string db; string data;

table(string tbName, string currDB, string currData){ name = tbName; db = currDB; data = currData; }

table(string tbName, string currDB){ name = tbName; db = currDB; } string getName(){ return name; } string getData(){ return data; } void add(string line){ //puts add in substr line = line.substr(line.find("ADD") + 3); data.append(" | " + line); }

~table(){}

//operator overload to check for equality to see if table exists bool operator==(table const& rhs){ if (name == rhs.name && db == rhs.db) return true; else false; } };

In this assignment, you will write a program that allows a database user to manage the metadata of their relational data. By metadata, we mean the database's high-level information (e.g., database's name, creation time, owner) as well as the properties of the tables (e.g., table's names, attributes, constraints)