Merge pull request #1 from ichn-hu/master

merge ass2 into branch

.gitignore

@@ -1 +1 @@
-docs/
+docs/

assignments/ass1/create_table.sql

@@ -0,0 +1,21 @@
+CREATE TABLE employee (
+    id INT PRIMARY KEY,
+    name VARCHAR(32),
+    office VARCHAR(32),
+    age INT
+);
+
+CREATE TABLE book (
+    id INT PRIMARY KEY,
+    name VARCHAR(32),
+    author VARCHAR(32),
+    publisher VARCHAR(32)
+);
+
+CREATE TABLE record (
+    book_id INT,
+    employee_id INT,
+    time DATE,
+    FOREIGN KEY (book_id) REFERENCES book(id),
+    FOREIGN KEY (employee_id) REFERENCES employee(id)
+);

assignments/ass1/submission/15307130201/1.sql

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+SELECT *
+FROM employee
+WHERE name = 'Jones';

assignments/ass1/submission/15307130201/2.sql

@@ -0,0 +1,3 @@
+SELECT name
+FROM employee
+WHERE id = 1 OR id = 2;

assignments/ass1/submission/15307130201/3.sql

@@ -0,0 +1,4 @@
+SELECT name
+FROM employee
+WHERE id != 1
+ORDER BY id;

assignments/ass1/submission/15307130201/4.sql

@@ -0,0 +1,4 @@
+SELECT name
+FROM employee
+WHERE age >= 25 and age <= 30
+ORDER BY id;

assignments/ass1/submission/15307130201/5.sql

@@ -0,0 +1,4 @@
+SELECT *
+FROM employee
+WHERE name LIKE 'J%'
+ORDER BY age;

assignments/ass1/submission/15307130201/6.sql

@@ -0,0 +1,3 @@
+SELECT DISTINCT publisher
+FROM book
+ORDER BY publisher;

assignments/ass1/submission/15307130201/7.sql

@@ -0,0 +1,4 @@
+SELECT DISTINCT book_id
+FROM record
+WHERE time >= '2016-10-31'
+ORDER BY book_id;

assignments/ass1/submission/15307130201/8.sql

@@ -0,0 +1,6 @@
+SELECT e.id, e.name, COUNT(*) as num
+FROM employee AS e, record
+WHERE e.id = record.employee_id
+GROUP BY e.id
+HAVING num > 1
+ORDER BY num DESC;

assignments/ass1/submission/15307130201/create_table.sql

@@ -0,0 +1,21 @@
+CREATE TABLE employee (
+	id INT(16),
+	name VARCHAR(32),
+	office VARCHAR(32),
+	age INT(8),
+	PRIMARY KEY (id)
+);
+CREATE TABLE book (
+	id INT(16),
+	name VARCHAR(32),
+	author VARCHAR(32),
+	publisher VARCHAR(32),
+	PRIMARY KEY (id)
+);
+CREATE TABLE record (
+	book_id INT(16),
+	employee_id INT(16),
+	time DATE,
+	FOREIGN KEY (book_id) REFERENCES book (id),
+	FOREIGN KEY (employee_id) REFERENCES employee (id)
+);

assignments/ass1/submission/18300200009/1.sql

@@ -0,0 +1,3 @@
+SELECT *
+FROM employee
+WHERE name='Jones';

assignments/ass1/submission/18300200009/2.sql

@@ -0,0 +1,3 @@
+SELECT name
+FROM employee
+WHERE id=1 OR id=2;

assignments/ass1/submission/18300200009/3.sql

@@ -0,0 +1,4 @@
+SELECT name
+FROM employee
+WHERE id!=1
+ORDER BY id;

assignments/ass1/submission/18300200009/4.sql

@@ -0,0 +1,4 @@
+SELECT name
+FROM employee
+WHERE age>=25 AND age<=30
+ORDER BY id;

assignments/ass1/submission/18300200009/5.sql

@@ -0,0 +1,4 @@
+SELECT *
+FROM employee
+WHERE name LIKE 'J%'
+ORDER BY age;

assignments/ass1/submission/18300200009/6.sql

@@ -0,0 +1,3 @@
+SELECT DISTINCT publisher
+FROM book
+ORDER BY publisher;

assignments/ass1/submission/18300200009/7.sql

@@ -0,0 +1,4 @@
+SELECT DISTINCT book_id
+FROM record
+WHERE time > 2016-10-31
+ORDER BY book_id;

assignments/ass1/submission/18300200009/8.sql

@@ -0,0 +1,6 @@
+SELECT id,name,count(book_id) AS num
+FROM record,employee
+WHERE id=employee_id
+GROUP BY id
+	HAVING count(book_id)>1
+ORDER BY num;

assignments/ass1/submission/18300200009/create_table.sql

@@ -0,0 +1,25 @@
+CREATE TABLE employee(
+	id INT NOT NULL,
+	name VARCHAR(32),
+	office VARCHAR(32),
+	age INT,
+	PRIMARY KEY(id),
+	CHECK (id>=0 AND id<=100)
+);
+CREATE TABLE book(
+	id INT NOT NULL,
+	name VARCHAR(32),
+	author VARCHAR(32),
+	publisher VARCHAR(32),
+	PRIMARY KEY(id)
+);
+CREATE TABLE record(
+	book_id INT NOT NULL,
+	employee_id INT NOT NULL,
+	time DATE,
+	FOREIGN KEY (book_id) REFERENCES book(id),
+	FOREIGN KEY (employee_id) REFERENCES employee(id)
+);
+
+
+

assignments/ass1/submission/18300200012/1.sql

@@ -0,0 +1,3 @@
+SELECT *
+FROM employee
+WHERE name="Jones";

assignments/ass1/submission/18300200012/2.sql

@@ -0,0 +1,3 @@
+SELECT name
+FROM employee
+WHERE id=1 or id = 2;

assignments/ass1/submission/18300200012/3.sql

@@ -0,0 +1,4 @@
+SELECT name
+FROM employee
+WHERE id!=1
+ORDER BY id;

assignments/ass1/submission/18300200012/4.sql

@@ -0,0 +1,4 @@
+SELECT name
+FROM employee
+WHERE age BETWEEN 25 AND 30
+ORDER BY id;

assignments/ass1/submission/18300200012/5.sql

@@ -0,0 +1,4 @@
+SELECT *
+FROM employee
+WHERE name LIKE "J%"
+ORDER BY age;

assignments/ass1/submission/18300200012/6.sql

@@ -0,0 +1,5 @@
+SELECT publisher 
+FROM book
+GROUP BY publisher
+HAVING count(id)>2
+ORDER BY publisher ; 

assignments/ass1/submission/18300200012/7.sql

@@ -0,0 +1,4 @@
+SELECT DISTINCT book_id AS id
+FROM record
+WHERE time > '2016-10-31'
+ORDER BY book_id;

assignments/ass1/submission/18300200012/8.sql

@@ -0,0 +1,5 @@
+SELECT id,name,count(id) AS num
+FROM employee JOIN record ON id = employee_id
+GROUP BY id,name
+HAVING num>1
+ORDER BY num DESC

assignments/ass1/submission/18300200012/create_table.sql

@@ -0,0 +1,27 @@
+CREATE TABLE employee
+    (
+        id INT NOT NULL, 
+        name VARCHAR(32),
+        office VARCHAR(32),
+        age INT,
+        check (age <= 100 and age >= 0),
+        PRIMARY KEY (id)
+    );
+
+CREATE TABLE book
+    (
+        id INT NOT NULL, 
+        name VARCHAR(32),
+        author VARCHAR(32),
+        publisher VARCHAR(32),
+        PRIMARY KEY (id)
+    );
+
+CREATE TABLE record
+    (
+        book_id INT,
+        employee_id INT,
+        time DATE,
+        FOREIGN KEY(book_id) references book(id),
+        FOREIGN KEY(employee_id) references employee(id)
+    );

assignments/ass1/submission/18300200015/1.sql

@@ -0,0 +1,3 @@
+select *
+from employee
+where name='Jones';

assignments/ass1/submission/18300200015/2.sql

@@ -0,0 +1,3 @@
+select name
+from employee
+where id='1' or id='2';

assignments/ass1/submission/18300200015/3.sql

@@ -0,0 +1,4 @@
+select name
+from employee
+where id!='1'
+order by id;

assignments/ass1/submission/18300200015/4.sql

@@ -0,0 +1,4 @@
+select name
+from employee
+where age>=25 and age<=30
+order by id;

assignments/ass1/submission/18300200015/5.sql

@@ -0,0 +1,4 @@
+select *
+from employee
+where name like 'J%'
+order by age;

assignments/ass1/submission/18300200015/6.sql

@@ -0,0 +1,4 @@
+select distinct x.publisher
+from book as x,book as y
+where x.publisher=y.publisher and x.name!=y.name
+order by publisher;

assignments/ass1/submission/18300200015/7.sql

@@ -0,0 +1,4 @@
+select book_id
+from record
+where time>'2016-10-31'
+order by book_id;

assignments/ass1/submission/18300200015/8.sql

@@ -0,0 +1,6 @@
+select employee.id,employee.name,count(record.employee_id)
+from record,employee
+where record.employee_id=employee.id
+group by employee.id
+having count(record.employee_id)>=2
+order by count(record.employee_id) desc;

assignments/ass1/submission/18300200015/create_table.sql

@@ -0,0 +1,23 @@
+create table employee(
+	id int,
+    name varchar(32),
+    office varchar(32),
+    age smallint,
+    primary key(id)
+);
+
+create table book(
+	id int,
+    name varchar(32),
+    author varchar(32),
+    publisher varchar(32),
+    primary key(id)
+);
+
+create table record(
+	book_id int,
+    employee_id int,
+    time date,
+    foreign key(book_id)references book(id),
+    foreign key(employee_id)references employee(id)
+);

assignments/ass1/submission/18300750006/1.sql

@@ -0,0 +1 @@
+SELECT * FROM employee WHERE name="Jones" ;

assignments/ass1/submission/18300750006/2.sql

@@ -0,0 +1 @@
+SELECT name FROM employee WHERE id = 1 OR id = 2 ;

assignments/ass1/submission/18300750006/3.sql

@@ -0,0 +1 @@
+SELECT name FROM employee WHERE id != 1 ORDER BY id;

assignments/ass1/submission/18300750006/4.sql

@@ -0,0 +1 @@
+SELECT name FROM employee WHERE age <= 30 AND age >= 25 ORDER BY id ;

assignments/ass1/submission/18300750006/5.sql

@@ -0,0 +1 @@
+SELECT * FROM employee WHERE name LIKE "J%" ORDER BY age ;

assignments/ass1/submission/18300750006/6.sql

@@ -0,0 +1,2 @@
+SELECT DISTINCT X.publisher FROM book AS X , book AS Y 
+	WHERE X.name != Y.name AND X.publisher = Y.publisher ORDER BY publisher;

assignments/ass1/submission/18300750006/7.sql

@@ -0,0 +1,2 @@
+SELECT DISTINCT book_id FROM record 
+	WHERE time > "2016-10-31" ORDER BY book_id ; 

assignments/ass1/submission/18300750006/8.sql

@@ -0,0 +1,6 @@
+SELECT employee.id, employee.name, COUNT(record.employee_id) 
+	AS num FROM (employee INNER JOIN record
+		ON employee.id = record.employee_id )
+			GROUP BY employee.id
+				HAVING COUNT(record.employee_id) >=2 
+					ORDER BY COUNT(record.employee_id) DESC;

assignments/ass1/submission/18300750006/create_table.sql

@@ -0,0 +1,18 @@
+CREATE TABLE employee
+		( id VARCHAR(32) NOT NULL PRIMARY KEY,
+		  name CHAR(32) NOT NULL,
+          office CHAR(32) NOT NULL,
+          age INT NOT NULL CHECK(age >= 0 AND age <= 100));
+
+CREATE TABLE book
+		( id VARCHAR(32) NOT NULL PRIMARY KEY,
+		  name CHAR(32) NOT NULL,
+          author CHAR(32) NOT NULL,
+          publisher CHAR(32) NOT NULL);
+
+CREATE TABLE record
+		( book_id VARCHAR(32) NOT NULL,
+		  employee_id CHAR(32) NOT NULL,
+          time DATE NOT NULL,
+          FOREIGN KEY (book_id) REFERENCES book(id),
+          FOREIGN KEY (employee_id) REFERENCES employee(id));

assignments/ass1/submission/18307130003/1.sql

@@ -0,0 +1,7 @@
+-- Query all fields for employees named Jones
+SELECT
+    *
+FROM
+    employee
+WHERE
+    name = 'Jones';

assignments/ass1/submission/18307130003/2.sql

@@ -0,0 +1,7 @@
+-- Query the name of employees with ID equals to 1 or 2 (order does not matter)
+SELECT
+    name
+FROM
+    employee
+WHERE
+    id IN (1, 2);

assignments/ass1/submission/18307130003/3.sql

@@ -0,0 +1,9 @@
+-- Query the name of all employees except the one whose ID is 1 (ordered by ID)
+SELECT
+    name
+FROM
+    employee
+WHERE
+    id <> 1
+ORDER BY
+    id;

assignments/ass1/submission/18307130003/4.sql

@@ -0,0 +1,10 @@
+-- Query the name of all employees with age between 25 and 30 (inclusively,
+-- ordered by ID)
+SELECT
+    name
+FROM
+    employee
+WHERE
+    age BETWEEN 25 AND 30
+ORDER BY
+    id;