53 lines
1 KiB
C++
Executable file
53 lines
1 KiB
C++
Executable file
#include <fstream>
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#include <iostream>
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#include <vector>
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#include "Relation.h"
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//still in progress
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class DBEngine {
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vector<Relation> tables;
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int size;
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public:
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DBEngine(){
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size = 0;
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}
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void createTable(string n, vector<Attribute> a) {
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Relation r(n, a);
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tables.push_back(r);
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}
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void createTable(Relation r) {
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tables.push_back(r);
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}
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Relation getTableFromName(string n) {
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//will return first occurence
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for(int i = 0; i < tables.size(); i++) {
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if (tables[i].getTableName() == n) {
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return tables[i];
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}
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}
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}
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void showTables(Relation r) {
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r.display();
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}
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void saveToFile() { /*Becca*/ }
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void insertTuple() { /*DONE*/ }
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void deleteTuple() { /*DONE*/ }
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void selectTuples() { /*William*/ }
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void project() { /*DONE*/ }
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void product() { /*Brandon*/ }
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bool unionComp(Relation r1, Relation r2) {
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return ((r1.getSize() == r2.getSize()) && (r1.getDomains() == r2.getDomains()));
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}
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vector<Relation> getRelations() {
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return tables;
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}
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};
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