123 lines
2.8 KiB
C++
Executable file
123 lines
2.8 KiB
C++
Executable file
#include <iostream>
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#include <vector>
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#include "Parserv3.h"
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//#include "Condition.h"
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#include "DBEngine.h"
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using namespace std;
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//still in progress
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/*
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int main() {
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DBEngine engine;
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Attribute att1("Breakfast", "VARCHAR(20)", true);
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Attribute att2("Lunch", "VARCHAR(20)", false);
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Attribute att3("Dinner", "VARCHAR(20)", false);
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att1.addCell("Pancakes");
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att1.addCell("Waffles");
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att1.addCell("Biscuits");
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att2.addCell("Turkey Sandwich");
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att2.addCell("Caesar Salad");
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att2.addCell("Pizza");
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att3.addCell("Steak");
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att3.addCell("Shrimp");
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att3.addCell("Ribs");
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vector<Attribute> v;
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v.push_back(att1);
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v.push_back(att2);
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v.push_back(att3);
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Relation r("Food", v);
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//r.renameAttribute("Breakfast", "BFST");
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//r.display();
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engine.createTable("Food", v);
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vector<string> tuple;
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tuple.push_back("Omelette");
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tuple.push_back("Fried Rice");
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tuple.push_back("Grouper");
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engine.getTableFromName("Food").insertTuple(tuple);
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vector<string> old;
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vector<string> newa;
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old.push_back("Breakfast");
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old.push_back("Lunch");
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old.push_back("Dinner");
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newa.push_back("Tsafkaerb");
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newa.push_back("Hcnul");
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newa.push_back("Rennid");
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//Projection test
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vector<string> projectTest;
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projectTest.push_back("Breakfast");
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projectTest.push_back("Dinner");
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cout << "\n***Initiated Projection***\n" << endl;
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Relation sub_r = engine.projection(projectTest, r);
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sub_r.display();
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//engine.rename(r, o, n);
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engine.rename(engine.getTableFromName("Food"), old, newa);
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engine.getTableFromName("Food").display();
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cout << "finished";
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}
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*/
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int main () {
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string ss = "INSERT INTO animals VALUES FROM ( Joe , cat , 4 ) ;";
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string ss2 = "SHOW Dogs ;";
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string ss3 = "EXIT ; ";
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DBEngine engine;
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// vector<string> listOfTokens = tokenize(ss);
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// vector<string> listOfTokens2 = tokenize(ss2);
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// vector<string> listOfTokens3 = tokenize(ss3);
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// par_line(listOfTokens);
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// par_line(listOfTokens2);
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// par_line(listOfTokens3);
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parse(ss, engine);
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parse(ss2, engine);
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parse(ss3, engine);
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engine.save();
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/*
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//engine.createTable("Food", v);
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//engine.createTable("Food", v);
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Attribute att4("Breakfast", "VARCHAR(20)", true);
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Attribute att5("Lunch", "VARCHAR(20)", false);
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Attribute att6("Dinner", "VARCHAR(20)", false);
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att4.addCell("Pancakes");
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att4.addCell("Bacon");
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att4.addCell("Eggs");
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att5.addCell("Turkey Sandwich");
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att5.addCell("Pasta Salad");
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att5.addCell("Taco");
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att6.addCell("Steak");
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att6.addCell("Fajitas");
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att6.addCell("Spaghetti");
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vector<Attribute> v2;
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v2.push_back(att4);
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v2.push_back(att5);
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v2.push_back(att6);
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engine.createTable("MoarFood", v2);
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engine.setUnion(engine.getTableFromName("Food"), engine.getTableFromName("MoarFood")).display();
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*/
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}
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