2018-11-28

Nov 28 In-Class Exercise .

Please post your solutions to the Nov 28 In-Class Exercise to this thread.

Best,

Chris

Please post your solutions to the Nov 28 In-Class Exercise to this thread. Best, Chris

-- Nov 28 In-Class Exercise

CREATE TABLE R(A INT, B INT DEFAULT 1);

INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);

INSERT INTO R(A, B) SELECT A, A * A AS B FROM R;

DELETE FROM R WHERE B < 25;

UPDATE R SET B = 26 WHERE B = 25;

CREATE TABLE R(A INT, B INT DEFAULT 1); INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10); INSERT INTO R(A, B) SELECT A, A * A AS B FROM R; DELETE FROM R WHERE B < 25; UPDATE R SET B = 26 WHERE B = 25;

-- Nov 28 In-Class Exercise

CREATE TABLE R( A INT, B INT DEFAULT 1 )

INSERT INTO R(A) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);

UPDATE R SET B = A*A;

DELETE FROM A WHERE B &lt; 25;

UPDATE R SET B = 26 WHERE B = 25;

(Edited: 2018-11-28)
CREATE TABLE R( A INT, B INT DEFAULT 1 ) INSERT INTO R(A) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10); UPDATE R SET B = A*A; DELETE FROM A WHERE B < 25; UPDATE R SET B = 26 WHERE B = 25;

-- Nov 28 In-Class Exercise

Amits-MacBook-Pro:~ amitranganathan$ sqlite3 foo

SQLite version 3.23.1 2018-04-10 17:39:29

Enter &quot;.help&quot; for usage hints.

sqlite&gt; create table R(A INT, B INT DEFAULT 1);

sqlite&gt; insert into R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);

sqlite&gt; UPDATE R SET B = A * A;

sqlite&gt; DELETE FROM R WHERE B &lt; 25;

sqlite&gt; UPDATE R SET B = 26 WHERE B = 25;

Amits-MacBook-Pro:~ amitranganathan$ sqlite3 foo SQLite version 3.23.1 2018-04-10 17:39:29 Enter ".help" for usage hints. sqlite> create table R(A INT, B INT DEFAULT 1); sqlite> insert into R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10); sqlite> UPDATE R SET B = A * A; sqlite> DELETE FROM R WHERE B < 25; sqlite> UPDATE R SET B = 26 WHERE B = 25;

-- Nov 28 In-Class Exercise

CREATE TABLE R(A INT, B INT, DEFAULT) INSERT INTO R(A) VALUES (1) (2) (3) (4) (5) (6) (7) (8) (9) (10); UPDATE R SET B = A * A; DELETE FROM R where B &lt; 25 UPDATE R SET B = 26 WHERE B = 25

CREATE TABLE R(A INT, B INT, DEFAULT) INSERT INTO R(A) VALUES (1) (2) (3) (4) (5) (6) (7) (8) (9) (10); UPDATE R SET B = A * A; DELETE FROM R where B < 25 UPDATE R SET B = 26 WHERE B = 25

-- Nov 28 In-Class Exercise

sqlite&gt; create table R (A int, B int DEFAULT 1);

sqlite&gt; INSERT into R(A) VALUES ...&gt; (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);

sqlite&gt; INSERT INTO R SELECT A, A*A AS B FROM R;

sqlite&gt; DELETE FROM R WHERE B &lt;25;

sqlite&gt; UPDATE R SET B = 26 WHERE B =25;

Hongbin Zheng

sqlite> create table R (A int, B int DEFAULT 1); sqlite> INSERT into R(A) VALUES ...> (1),(2),(3),(4),(5),(6),(7),(8),(9),(10); sqlite> INSERT INTO R SELECT A, A*A AS B FROM R; sqlite> DELETE FROM R WHERE B <25; sqlite> UPDATE R SET B = 26 WHERE B =25; Hongbin Zheng

-- Nov 28 In-Class Exercise

CREATE TABLE R(A INT, B INT DEAFULT 1);

INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);

INSERT INTO R(A, B) SELECT A, A*A FROM R;

DELETE FROM R WHERE B &lt; 25;

UPDATE R SET B = 26 WHERE B = 25;

CREATE TABLE R(A INT, B INT DEAFULT 1); INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10); INSERT INTO R(A, B) SELECT A, A*A FROM R; DELETE FROM R WHERE B < 25; UPDATE R SET B = 26 WHERE B = 25;

-- Nov 28 In-Class Exercise

Ryan Moore CREATE TABLE R( A INT, B INT DEFAULT 1); &lt;br&gt; INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10); &lt;br&gt; INSERT INTO R(A,B) SELECT A,A*A FROM R;&lt;br&gt; DELETE FROM R WHERE B &lt; 25; &lt;br&gt; UPDATE R SET B = 26 WHERE B = 25;&lt;br&gt;

(Edited: 2018-11-28)
Ryan Moore CREATE TABLE R( A INT, B INT DEFAULT 1); <br> INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10); <br> INSERT INTO R(A,B) SELECT A,A*A FROM R;<br> DELETE FROM R WHERE B < 25; <br> UPDATE R SET B = 26 WHERE B = 25;<br>

-- Nov 28 In-Class Exercise

Student Name: Alexander Duong &lt;nowiki&gt; CREATE TABLE R( A INT, B INT DEFAULT 1);

INSERT INTO R(A) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);

INSERT INTO R(A, B) SELECT A, A * A AS B FROM R;

DELETE FROM R WHERE B &lt; 25;

UPDATE R SET B = 26 WHERE B = 25; &lt;/nowiki&gt;

Student Name: Alexander Duong <nowiki> CREATE TABLE R( A INT, B INT DEFAULT 1); INSERT INTO R(A) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10); INSERT INTO R(A, B) SELECT A, A * A AS B FROM R; DELETE FROM R WHERE B < 25; UPDATE R SET B = 26 WHERE B = 25; </nowiki>

-- Nov 28 In-Class Exercise

CREATE TABLE R( A INT, B INT DEFAULT 1);&lt;br /&gt; &lt;br /&gt;&lt;br /&gt; INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);&lt;br /&gt; &lt;br /&gt;&lt;br /&gt; INSERT INTO R(A,B)&lt;br /&gt; SELECT A, A*A AS B&lt;br /&gt; FROM R&lt;br /&gt; &lt;br /&gt; DELETE FROM R WHERE B&lt;25; &lt;br /&gt; UPDATE R SET B=26&lt;br /&gt; WHERE B=25;

(Edited: 2018-11-28)
CREATE TABLE R( A INT, B INT DEFAULT 1);<br /> <br /><br /> INSERT INTO R(A) VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);<br /> <br /><br /> INSERT INTO R(A,B)<br /> SELECT A, A*A AS B<br /> FROM R<br /> <br /> DELETE FROM R WHERE B<25; <br /> UPDATE R SET B=26<br /> WHERE B=25;
[ Next ]
X