From 11a4a709a6cd91bfdc33b3ec2d05a412178f5e3f Mon Sep 17 00:00:00 2001 From: NicholasWolak Date: Tue, 27 Jul 2021 17:46:33 -0400 Subject: [PATCH] Completed all SQL queries --- answers/exercise1.sql | 5 +++++ answers/exercise10.sql | 1 + answers/exercise11.sql | 1 + answers/exercise12.sql | 1 + answers/exercise13.sql | 1 + answers/exercise14.sql | 1 + answers/exercise15.sql | 1 + answers/exercise16.sql | 1 + answers/exercise17.sql | 1 + answers/exercise18.sql | 1 + answers/exercise19.sql | 1 + answers/exercise2.sql | 1 + answers/exercise20.sql | 1 + answers/exercise3.sql | 8 ++++++++ answers/exercise4.sql | 1 + answers/exercise5.sql | 1 + answers/exercise6.sql | 1 + answers/exercise7.sql | 1 + answers/exercise8.sql | 2 ++ answers/exercise9.sql | 1 + 20 files changed, 32 insertions(+) diff --git a/answers/exercise1.sql b/answers/exercise1.sql index e69de29..7d6d4f7 100644 --- a/answers/exercise1.sql +++ b/answers/exercise1.sql @@ -0,0 +1,5 @@ +CREATE SCHEMA myNewDB; + +(or) + +CREATE DATABASE myNewDB; \ No newline at end of file diff --git a/answers/exercise10.sql b/answers/exercise10.sql index e69de29..ad06ecb 100644 --- a/answers/exercise10.sql +++ b/answers/exercise10.sql @@ -0,0 +1 @@ +SELECT * FROM Students WHERE City = 'Philadelphia' OR 'Trenton'; \ No newline at end of file diff --git a/answers/exercise11.sql b/answers/exercise11.sql index e69de29..6b94b42 100644 --- a/answers/exercise11.sql +++ b/answers/exercise11.sql @@ -0,0 +1 @@ +SELECT * FROM Students ORDER BY City ASC; \ No newline at end of file diff --git a/answers/exercise12.sql b/answers/exercise12.sql index e69de29..387247f 100644 --- a/answers/exercise12.sql +++ b/answers/exercise12.sql @@ -0,0 +1 @@ +SELECT * FROM Students ORDER BY City DESC; \ No newline at end of file diff --git a/answers/exercise13.sql b/answers/exercise13.sql index e69de29..5620202 100644 --- a/answers/exercise13.sql +++ b/answers/exercise13.sql @@ -0,0 +1 @@ +SELECT * FROM Students ORDER BY Country, City ASC; \ No newline at end of file diff --git a/answers/exercise14.sql b/answers/exercise14.sql index e69de29..d606be1 100644 --- a/answers/exercise14.sql +++ b/answers/exercise14.sql @@ -0,0 +1 @@ +SELECT * FROM Students WHERE PostalCode = NULL; \ No newline at end of file diff --git a/answers/exercise15.sql b/answers/exercise15.sql index e69de29..465b606 100644 --- a/answers/exercise15.sql +++ b/answers/exercise15.sql @@ -0,0 +1 @@ +SELECT * FROM Students WHERE PostalCode <> NULL; \ No newline at end of file diff --git a/answers/exercise16.sql b/answers/exercise16.sql index e69de29..c6e01de 100644 --- a/answers/exercise16.sql +++ b/answers/exercise16.sql @@ -0,0 +1 @@ +UPDATE Students SET City = 'Edinburgh'; \ No newline at end of file diff --git a/answers/exercise17.sql b/answers/exercise17.sql index e69de29..475bb10 100644 --- a/answers/exercise17.sql +++ b/answers/exercise17.sql @@ -0,0 +1 @@ +UPDATE Students SET City = 'Edinburgh' WHERE Country = 'Scotland'; \ No newline at end of file diff --git a/answers/exercise18.sql b/answers/exercise18.sql index e69de29..6e9d376 100644 --- a/answers/exercise18.sql +++ b/answers/exercise18.sql @@ -0,0 +1 @@ +UPDATE Students SET City = 'Edinburgh', Country = 'Scotland' WHERE StudentID = 35; \ No newline at end of file diff --git a/answers/exercise19.sql b/answers/exercise19.sql index e69de29..2cdd0fd 100644 --- a/answers/exercise19.sql +++ b/answers/exercise19.sql @@ -0,0 +1 @@ +DELETE FROM Students WHERE Country = 'Scotland'; \ No newline at end of file diff --git a/answers/exercise2.sql b/answers/exercise2.sql index e69de29..e7487f3 100644 --- a/answers/exercise2.sql +++ b/answers/exercise2.sql @@ -0,0 +1 @@ +DROP DATABASE myNewDB; \ No newline at end of file diff --git a/answers/exercise20.sql b/answers/exercise20.sql index e69de29..2e9be8f 100644 --- a/answers/exercise20.sql +++ b/answers/exercise20.sql @@ -0,0 +1 @@ +TRUNCATE Students; \ No newline at end of file diff --git a/answers/exercise3.sql b/answers/exercise3.sql index e69de29..8b0c289 100644 --- a/answers/exercise3.sql +++ b/answers/exercise3.sql @@ -0,0 +1,8 @@ +CREATE TABLE Users +( + UserID int, + LastName VARCHAR(255), + FirstName VARCHAR(255), + Address VARCHAR(255), + City VARCHAR(255) +); \ No newline at end of file diff --git a/answers/exercise4.sql b/answers/exercise4.sql index e69de29..abddb21 100644 --- a/answers/exercise4.sql +++ b/answers/exercise4.sql @@ -0,0 +1 @@ +DELETE Users FROM myNewDB; \ No newline at end of file diff --git a/answers/exercise5.sql b/answers/exercise5.sql index e69de29..12321ad 100644 --- a/answers/exercise5.sql +++ b/answers/exercise5.sql @@ -0,0 +1 @@ +TRUNCATE TABLE Users; \ No newline at end of file diff --git a/answers/exercise6.sql b/answers/exercise6.sql index e69de29..9782ded 100644 --- a/answers/exercise6.sql +++ b/answers/exercise6.sql @@ -0,0 +1 @@ +ALTER TABLE Users ADD Birthday DATE; \ No newline at end of file diff --git a/answers/exercise7.sql b/answers/exercise7.sql index e69de29..785fbc8 100644 --- a/answers/exercise7.sql +++ b/answers/exercise7.sql @@ -0,0 +1 @@ +DELETE Brithday FROM Users; \ No newline at end of file diff --git a/answers/exercise8.sql b/answers/exercise8.sql index e69de29..62c2a12 100644 --- a/answers/exercise8.sql +++ b/answers/exercise8.sql @@ -0,0 +1,2 @@ +INSERT INTO Students (StudentName, Address, City, PostalCode, Country) +VALUES ('Jane Doe', '57 Union St', 'Glasgow', 'G13RB', 'Scotland'); \ No newline at end of file diff --git a/answers/exercise9.sql b/answers/exercise9.sql index e69de29..8e7f9e6 100644 --- a/answers/exercise9.sql +++ b/answers/exercise9.sql @@ -0,0 +1 @@ +SELECT * FROM Students WHERE City <> 'Philadelphia'; \ No newline at end of file