Completed

answers/exercise1.sql

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+CREATE database myNewDB;

answers/exercise10.sql

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+SELECT * FROM Users WHERE City = Philadelphia|| City = Trenton;

answers/exercise11.sql

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+SELECT * FROM Users ORDER BY City;

answers/exercise12.sql

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+SELECT * FROM Users ORDER BY City DESC;

answers/exercise13.sql

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+SELECT * FROM Users WHERE ORDER BY City, Country;

answers/exercise14.sql

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+SELECT * FROM WHERE PostalCode = NULL;

answers/exercise15.sql

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+SELECT * FROM WHERE PostalCode = NOT NULL;

answers/exercise16.sql

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+UPDATE Users SET City = Edinburgh;

answers/exercise17.sql

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+UPDATE Users SET City = Edinburgh WHERE City = Scotland;

answers/exercise18.sql

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+UPDATE Users SET City = Edinburgh, Country = Scotland WHERE id = 35;

answers/exercise19.sql

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+DELETE FROM Users WHERE Country = Scotland;

answers/exercise2.sql

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+DROP DATABASE myNewDB;

answers/exercise20.sql

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+TRUNCATE USERS;

answers/exercise3.sql

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+CREATE TABLE Users(
+LastName varchar (255),
+FirstName varchar (255),
+Address varchar (255),
+City varchar (255),
+);

answers/exercise4.sql

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+DROP table Users;

answers/exercise5.sql

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+TRUNCATE table Users;

answers/exercise6.sql

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+ALTER TABLE Users ADD Birthday DATE;

answers/exercise7.sql

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+ALTER TABLE Users DROP Birthday DATE;

answers/exercise8.sql

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+INSERT INTO Users (
+Jane Doe,
+57 Union St,
+Glasgow,
+G13RB,
+Scotland,
+);

answers/exercise9.sql

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+SELECT * FROM Users NOT Philadelphia;