Merge branch 'beccadev'

DBEngine.h

@@ -22,22 +22,31 @@ public:
 		tables.push_back(r);
 	}
 	
-	void showTables(String name) { 
+	Relation getTableFromName(string n) {
+		//will return first occurence
 		for(int i = 0; i < tables.size(); i++) {
-			if (tables.getTableName() == name) {
-				name.display();
-				break;
+			if (tables[i].getTableName() == n) {
+				return tables[i];
 			}
 		}
 	}
 	
+	void showTables(Relation r) { 	
+		r.display();
+	}
+	
 	void saveToFile() { /*Becca*/ }
-	void insertTuple() { /*William*/ }
-	void deleteTuple() { /*William*/ }
-	void selectTuples() { /*Becca*/ }
-	void project() { /*Brandon*/ }
+	void insertTuple() { /*DONE*/ }
+	void deleteTuple() { /*DONE*/ }
+	void selectTuples() { /*William*/ }
+	void project() { /*DONE*/ }
 	void product() { /*Brandon*/ }
-	void unionComp() { /*William*/ }
+	
+	bool unionComp(Relation r1, Relation r2) { 
+		//Two relations are union-compatible if they have the same # of attributes and each attribute must be
+		//from the same domain
+		
+	}
 	
 	
 	vector<Relation> getRelations() {

test.cpp

@@ -13,21 +13,36 @@ int main() {
 	att1.addRow("sponge");
 	att1.addRow("wooow");
 	att1.addRow("cloth");
-	att1.display();
 	
 	Attribute att2("doom", "VARCHAR(20)", false);
 	att2.addRow("zombieman");
 	att2.addRow("revenant");
 	att2.addRow("imp");
 	att2.addRow("archvile");
-	att2.display();
 	
 	vector<Attribute> vec;
 	vec.push_back(att1);
 	vec.push_back(att2);
+
+	Attribute att3("name", "VARCHAR(20)", true);
+	att1.addRow("Fry");
+	att1.addRow("Bender");
+	att1.addRow("Leela");
+	att1.addRow("Zoidberg");
+	
+	Attribute att4("age", "INTEGER", false);
+	att2.addRow("22");
+	att2.addRow("5");
+	att2.addRow("22");
+	att2.addRow("50");
+	
+	vector<Attribute> vec2;
+	vec2.push_back(att3);
+	vec2.push_back(att4);
 	
 	//beginning testing of core DB functions
 	engine.createTable("table1", vec);
-	engine.showTables("table1");
+	engine.createTable("table2", vec2);
+	engine.showTables(engine.getTableFromName("table1"));
 	
 }