Update and rename db_engine.h to DBEngine.h

DBEngine.h

@@ -1,19 +1,21 @@
 #include <fstream>
 #include <iostream>
 #include <vector>
+#include "Relation.h"
 
 using namespace std;
 
-class db_engine {
-	vector<string> cmdList;
-	//vector<vector<string>> table;
+class DBEngine {
+	//member variables
+	//NOT DONE
+	//vector<Relation> tables;
 
 public:
-	db_engine();
-	void createCmd(string tableName, vector<string> attributes, vector<string> pkeys);
+	DBEngine();
+	void createCmd();
 	//void openCmd();
 	void saveCmd();
-	void showCmd(string tableName);
+	void showCmd();
 	void insertQuery();
 	void deleteQuery();
 	void selectQuery();