Which one is NOT a duty of MySQL Administration? (Points : 2) Server startup and shutdown User account maintenance Log maintenance Running SQL statementsQuestion 2.2. (TCO A) How do you display the current system variable values? (Points : 2) SHOW SYSTEM; SHOW VARIABLES; SHOW VALUES; SHOW SYSTEM VARIABLES;Question 3.3. (TCO A) How do you display the global variable values? (Points : 2) SHOW SYSTEM; SHOW VARIABLES; SHOW VALUES; SHOW GLOBAL VARIABLES;Question 4.4. (TCO A) Which statement enables you to rename tables or modify their structure? (Points : 2) MODIFY TABLE ALTER TABLE CHANGE TABLE CREATE TABLEQuestion 5.5. (TCO A) Which is the statement that will rename the instructor table to a new name? (Points : 2) ALTER TABLE instructor RENAME TO instr; RENAME instructor instr; This task is not available in MySQL. ALTER TABLE instructor TO instr;Question 6.6. (TCO A) Review the following SQL statement: CHECKSUM TABLE instructor; What is going to be the result if there is no table named instructor? (Points : 2) CHECKSUM value is zero. CHECKSUM value is negative. CHECKSUM value is NULL. An error occurs.Which one is NOT a duty of MySQL Administration? (Points : 2) Server startup and shutdown User account maintenance Log maintenance Running SQL statements Solution 1.1 Which one is NOT a duty of MySQL Administration? a) log maintainance 2.2 How do you display the current system variable values? show variables 3.3 How do you display the global variable values? SHOW GLOBAL VARIABLES; 4.4 Which statement enables you to rename tables or modify their structure? ALTER TABLE 5.5 Which is the statement that will rename the instructor table to a new name? This task is not available in MySQL. 6.6. CHECKSUM TABLE instructor; CHECKSUM value is NULL..

1. Write a class that implements the BagInterface. BagInterface should have methods to:
getCurrentSize (): integer isEmpty(): boolean add (newEntry: T): boolean remove(): T Rather
than T use int. Also it should have a toString that displays what you have in the bag. Write both
BagInterface and Bag class. Write the main that test the Bag class. Bag +getCurrentSize():
integer +isEmpty(): boolean +add(newEntry: T): boolean +remove(): T +remove(anEntry: T):
Boolean +clear(): void +getFrequencyOf (anEntry: T): integer +contains (anEntry: T): boolean
+toArray(): T[]
Solution
Here is a list of all files (source code is given below one by one save them with given name and
rum):
ArrayBag.cpp-------------------->
#include "ArrayBag.h"
#include
template
ArrayBag::ArrayBag(): itemCount(0), maxItems(DEFAULT_CAPACITY)
{
} // end default constructor
template
int ArrayBag::getCurrentSize() const
{
return itemCount;
} // end getCurrentSize
template
bool ArrayBag::isEmpty() const
{
return itemCount == 0;
} // end isEmpty
template
bool ArrayBag::add(const ItemType& newEntry)
{
bool hasRoomToAdd = (itemCount < maxItems);
if (hasRoomToAdd)
{
items[itemCount] = newEntry;

2. itemCount++;
} // end if
return hasRoomToAdd;
} // end add
template
bool ArrayBag::remove(const ItemType& anEntry)
{
int locatedIndex = getIndexOf(anEntry);
bool canRemoveItem = !isEmpty() && (locatedIndex > -1);
if (canRemoveItem)
{
itemCount--;
items[locatedIndex] = items[itemCount];
} // end if
return canRemoveItem;
} // end remove
template
void ArrayBag::clear()
{
itemCount = 0;
} // end clear
template
int ArrayBag::getFrequencyOf(const ItemType& anEntry) const
{
int frequency = 0;
int curIndex = 0; // Current array index
while (curIndex < itemCount)
{
if (items[curIndex] == anEntry)
{
frequency++;
} // end if
curIndex++; // Increment to next entry
} // end while
return frequency;
} // end getFrequencyOf

3. template
bool ArrayBag::contains(const ItemType& anEntry) const
{
return getIndexOf(anEntry) > -1;
} // end contains
template
std::vector ArrayBag::toVector() const
{
std::vector bagContents;
for (int i = 0; i < itemCount; i++)
bagContents.push_back(items[i]);
return bagContents;
} // end toVector
// private
template
int ArrayBag::getIndexOf(const ItemType& target) const
{
bool found = false;
int result = -1;
int searchIndex = 0;
// If the bag is empty, itemCount is zero, so loop is skipped
while (!found && (searchIndex < itemCount))
{
if (items[searchIndex] == target)
{
found = true;
result = searchIndex;
}
else
{
searchIndex++;
} // end if
} // end while
return result;
} // end getIndexOf
ArrayBag.h-------------->

4. #ifndef ARRAY_BAG_
#define ARRAY_BAG_
#include "BagInterface.h"
template
class ArrayBag : public BagInterface
{
private:
static const int DEFAULT_CAPACITY = 6; // Small size to test for a full bag
ItemType items[DEFAULT_CAPACITY]; // Array of bag items
int itemCount; // Current count of bag items
int maxItems; // Max capacity of the bag
// Returns either the index of the element in the array items that
// contains the given target or -1, if the array does not contain
// the target.
int getIndexOf(const ItemType& target) const;
public:
ArrayBag();
int getCurrentSize() const;
bool isEmpty() const;
bool add(const ItemType& newEntry);
bool remove(const ItemType& anEntry);
void clear();
bool contains(const ItemType& anEntry) const;
int getFrequencyOf(const ItemType& anEntry) const;
std::vector toVector() const;
}; // end ArrayBag
#include "ArrayBag.cpp"
#endif
BagDriver.cpp-------->
//-----------------------
// C++ includes
//-----------------------
#include
#include
#include
#include

5. //-----------------------
// Application includes
//-----------------------
#include "ArrayBag.h"
#include "io_functions.h"
//-----------------------
// Using statements
//-----------------------
using namespace std;
//----------------------
// Functions Prototypes
//----------------------
int getBagNum(); //prompts user for bag number
void processOption(char& c, ArrayBag bags[]); //processes menu input
void displayBag(ArrayBag& bag); //display the bag's entire contents
void restoreBag(ArrayBag& bag); //prompts for filename with items
void saveBag(ArrayBag& bag); //prompts for filename to store items in
int main()
{
int bagNum; //The bag number to use
ArrayBag bag[3];//bags to test, bag 0 used for intersection/union
string restoreBagFlg; // holds response to restore bag from a file
string menuOption; // holds menu option input from user
//Opening Message
cout<< "Bag Driver - Tests the Bag class using two bags" << endl;
//Restore the bag from a file
cout<< "----------------------------------" << endl;
cout<< "Would you like to restore a bag from a file? (Y/N) ";
//Read user input - use a string to accept all inputs
getline(cin, restoreBagFlg);
if(restoreBagFlg[0] == 'Y' || restoreBagFlg[0] == 'y'){
bagNum = getBagNum();
restoreBag(bag[bagNum]); // opens/reads file into aBag
}
//Menu driven part of main program
//Initial menu display and loop to process menu option

6. printMenu();
do {
cout << " Enter menu selection (0 for menu): ";
getline(cin, menuOption); //Use a string in case user enters chars
processOption(menuOption[0], bag);
}while(menuOption[0] != '9');
return 0; //Exit program
}//main()
//---------------------------
// Local function definitions
//---------------------------
int getBagNum()
{
int bagNum=0;
while(bagNum != 1 && bagNum != 2)
{
cout << "Which bag (1 or 2)? ";
bagNum = getInt();
}
return bagNum;
} //getBagNum()
void displayBag(ArrayBag& bag)
{
string item;
vector bagVector = bag.toVector();
if(bagVector.size() > 0)
{
cout << "The bag contains: " << endl;
for(unsigned int i=0; i bag[])
{
int bagNum;
string item;
string saveBagFlg;
switch (menuChar)
{
case '0': // Display menu options

7. printMenu();
break;
case '1': // Output size of the bag
cout << " Bag Size is: " << bag[getBagNum()].getCurrentSize() << endl;
break;
case '2': // Add items to the bag
cout << "Add Item:" << endl;
item = getItem();
bagNum = getBagNum();
if(bag[bagNum].add(item))
{
cout << item << " was successfully added to bag " << bagNum << endl;
}
else
{
cout << item << " was not added to the bag." << endl;
}
break;
//NOTE that options 3 - 8 are left for the student to complete
case '8': // Display entire contents of bag
displayBag(bag[getBagNum()]);
break;
case '9': // Exit the program
case 'Q': // handles multiple quit inputs
case 'q':
cout<< "Would you like to save the bag to a file? (Y/N) ";
getline(cin, saveBagFlg);
if(saveBagFlg[0] == 'Y' || saveBagFlg[0] == 'y')
saveBag(bag[getBagNum()]); // save bag to file
cout<< "Goodbye!"<< endl; // Exit message
menuChar = '9';
break;
default: // Invalid menu option entered
cout << " Error! Invalid option. Please try again. ";
printMenu();
}

8. }//processOption()
void restoreBag(ArrayBag& bag)
{
bool success = true;
ifstream fin;
string filename;
string item;
//Data validation to get filename and open it
do{
cout<<"Enter the filename that contains the bag: ";
getline(cin, filename);
fin.clear();
fin.open(filename.c_str());
if(fin == 0){
cout<<"ERROR - could not open file " << filename<& bag)
{
//NOTE this is a function stub. You need to implement it.
cout << "Bag will be saved when implemented" << endl;
}//saveBag()
BagInterface.h------>
#ifndef BAG_INTERFACE_
#define BAG_INTERFACE_
#include
template
class BagInterface
{
public:
virtual int getCurrentSize() const = 0;
virtual bool isEmpty() const = 0;
virtual bool add(const ItemType& newEntry) = 0;
virtual bool remove(const ItemType& anEntry) = 0;
virtual void clear() = 0;
virtual int getFrequencyOf(const ItemType& anEntry) const = 0;
virtual bool contains(const ItemType& anEntry) const = 0;
virtual std::vector toVector() const = 0;
virtual ~BagInterface() { }

9. }; // end BagInterface
#endif
CardGuesser.cpp------->
#include // For cout and cin
#include // For string objects
#include "Bag.h" // For ADT bag
using namespace std;
int main()
{
string clubs[] = { "Joker", "Ace", "Two", "Three", "Four", "Five", "Six", "Seven",
"Eight", "Nine", "Ten", "Jack", "Queen", "King" };
// Create our bag to hold cards.
Bag grabBag;
// Place six cards in the bag.
grabBag.add(clubs[1]);
grabBag.add(clubs[2]);
grabBag.add(clubs[4]);
grabBag.add(clubs[8]);
grabBag.add(clubs[10]);
grabBag.add(clubs[12]);
// Get friends guess and check it.
int guess = 0;
while (!grabBag.isEmpty())
{
cout << "What is your guess?"<< "(1 for Ace to 13 for King):";
cin >> guess;
// Is card in the bag?
if (grabBag.contains(clubs[guess]))
{
// Good guess remove card from the bag.
cout << "You get the card! ";
grabBag.remove(clubs[guess]);
}
else
{
cout << "Sorry, card was not in the bag. ";

10. } // end if
} // end while
cout << "No more cards in the bag. Game over! ";
return 0;
}; // end main
io_functions.cpp----------->
#include "io_functions.h"
using namespace std;
void printMenu(){
cout << "1) Print the size of the bag" << endl;
cout << "2) Add an item into the bag" << endl;
cout << "3) Remove an item from the bag" << endl;
cout << "4) Check for an item in the bag" << endl;
cout << "8) Display the bag" << endl;
cout << "9) Quit the program" << endl;
}
int getInt(){
int intValue = 0;
string inputStr;
do{
getline(cin, inputStr);
stringstream(inputStr) >> intValue;
if(intValue < 1) cout << "ERROR - please enter a positive integer> ";
} while(intValue < 1);
return intValue;
}
string getItem()
{
string item;
cout << "Enter the bag item> ";
getline(cin, item);
return item;
}
io_functions.h------------>
#ifndef IO_FUNCTIONS_H
#define IO_FUNCTIONS_H

11. #include
#include
using namespace std;
void printMenu();
int getInt();
string getItem();
#endif