use this code

Attribute.h

@@ -7,68 +7,49 @@ using namespace std;
 
 //template<typename T>
 class Attribute {
-	//a named column of a relation
+	vector<string> values;
 	string name;
-	bool isKey;
+	string type;
+	bool key;
 	int size;
 	
 public:
-	
+	Attribute(string n, string t, bool k){ 
-	vector<string> values;
-
-	void initializeAttribute(string n, vector<string> a){ 
-	 
 		name = n;
-		values = a;
+		type = t;
+		key = k;
+		size = 0;
 	}
 	
-	string getName(){ 
+	void addRow(string v) {
-		return name; 
+		values.push_back(v);
 	}
 	
-	Attribute(){  }
+	vector<string> getValues() { return values; }
+	string getName(){ return name; }
+	string getType(){ return type; }
+	bool isKey(){ return key; }
+	int getSize(){ return size; }
 	
 	void display()
 	{
-		//cout<<"\nAtribute name:\t"<<name<<"\n";
+		cout<<"Attribute name:\t"<< name <<"\n";
-		//cout<<"Elements: ";
+		cout<<"Elements: ";
+		
 		for (int i = 0; i < values.size(); ++i)
 		{
 			cout<<values[i]<<"      ";
 		}
 	}
 
-	int getSize()
+	void Attribute(string n, vector<string> a){ 
-	{
-		return values.size();
-	}
 	 
-	void pushBack(string s)
+		name = n;
-	{
+		values = a;
-		values.push_back(s);
 	}
 	
 	void erase(int position)
 	{
 		values.erase(values.begin()+ position);
 	}	
-/*	
-	Attribute(vector<string> v){ 
-		this.values = v; 
-	}
-	
-	Attribute(const Attribute<string>& a){ 
-		this.values = a.getAll(); 
-	}
-	
-	Attribute& operator=(const Attribute<string>& a){ 
-		this.values = a.getAll(); 
-	}
-	
-	
-	
-	vector<string> getAll(){
-		return this.values;
-	}
-*/	
 };

Relation.h

@@ -4,17 +4,12 @@
 
 //Functional
 class Relation {
-	//a table with rows and columns
+	string name; //The title the user gives it
-	string name;		//the name of the relation (table)
+	vector<Attribute> att; //A vector of the columns
-	vector<Attribute> att;
+	itn size;
-	vector<string> attributeNames;
-	int size;
 	
 public:
-	//Relation();
+	Relation(string n, vector<Attribute> a) { 
-	
-	void initializeRelation(string n, vector<string> attNames, vector<Attribute> a) { 
-		attributeNames = attNames;
 		name = n;
 		att = a;
 		size = 0;
@@ -23,13 +18,15 @@ public:
 	int getSize() { return size; }
 	
 	void addTuple(vector<string> tuple) {
-		if(tuple.size() != att.size()){
-			cout << "\n ERROR" << endl;
-		}
-		else {
 		//Loop through the attribute columns
 		for(int i = 0; i < att.size(); i++) {
-				att[i].pushBack(tuple[i]);
+			
+			//Loop through the elements in the i'th column 
+			for(int j = 0; j < att[i].values.size(); j++){
+				
+				//In this column, at this element's spot, assign an element from the tuple vector to this spot
+				att[i].addRow(tuple[i]);
+				size++;
 			}
 		}
 	}
@@ -50,6 +47,20 @@ public:
 		}
 	}
 		
+	int getSize() { return size; }
+	
+	string getTableName() {
+		return name;
+	}
+	
+	void displayTableName() {
+		cout << "The table name is: " << name << endl;
+	}
+	
+	vector<Attribute> getAttributes() {
+		return att;
+	}
+	
 	void projectQuery(string input) {
 		cout << "-----------Initiated Query Projection---------" << endl;
 		for(int i = 0; i < att.size(); i++) {