submit

answers/exercise1.sql

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+CREATE SCHEMA myNewDB;

answers/exercise10.sql

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+ALTER TABLE Users ADD COLUMN MiddleName varchar(255), ADD COLUMN NickName varchar(255), ADD COLUMN Email varchar(255), ADD COLUMN Suffix varchar(64), ADD COLUMN BadgeID varchar(255);

answers/exercise11.sql

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+ALTER TABLE Users DROP COLUMN NickName, DROP COLUMN Suffix;

answers/exercise12.sql

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+ALTER TABLE Users CHANGE MiddleName Initial varchar(64);

answers/exercise13.sql

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+ALTER TABLE Users CHANGE FirstName First_Name varchar(255), CHANGE LastName Last_Name varchar(255);

answers/exercise14.sql

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+describe Users;

answers/exercise15.sql

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+INSERT INTO Students (StudentName, Address, City, PostalCode, Country)
+VALUES('Jane Doe','57 Union St','Glasgow, Scotland','G13RB');

answers/exercise16.sql

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+UPDATE Students SET City = 'Edinburgh';

answers/exercise17.sql

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+UPDATE Students SET City = 'Edinburgh' WHERE Country = 'Scotland';

answers/exercise18.sql

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+UPDATE Students SET City = 'Edinburgh', Country = 'Scottland' WHERE StudentID = 35;

answers/exercise19.sql

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+DELETE FROM Students WHERE Country = 'Scotland';

answers/exercise2.sql

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+show databases;

answers/exercise20.sql

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+DELETE FROM Students;

answers/exercise3.sql

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+use myNewBD;

answers/exercise4.sql

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+drop database myNewBD;

answers/exercise5.sql

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

answers/exercise6.sql

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+DROP TABLE Users;

answers/exercise7.sql

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+TRUNCATE TABLE Users;

answers/exercise8.sql

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+ALTER TABLE Users ADD COLUMN Birthday DATE;

answers/exercise9.sql

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+ALTER TABLE Users DROP COLUMN Birthday;