ere's a "users" table and "messages" table included in the image. Implement a SQL query to return which users have more than 10 unread messages (NULL in the "date_read" column).
ere's a "users" table and "messages" table included in the image. Implement a SQL query to return which users have more than 10 unread messages (NULL in the "date_read" column).
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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There's a "users" table and "messages" table included in the image.
Implement a SQL query to return which users have more than 10 unread messages (NULL in the "date_read" column).
Transcribed Image Text:users
user_id
username
email
friend_count
3437315
janedoe2.0
janedoe2.0@email.com
5
3437316
princessluv8996
princessluv8996@email.com
600017
3437317
sk8ter4!f3
sk8ter4l!f3@email.com
583
Table Name: users
user_id: Id of user
username: name of user
email: email of user
friend_count: user's number of friends
messages
message_id
from_user_id
to user_id
date_sent
date_read
message
1
3437317
2138102
2015-03-15
2015-03-15
"Hi!!! Wanted to know how
00:02:17
00:03:05
u were doing?! Miss you !! ."
NULL
"Don't forget to like and
comment on my new pic."
2
1438443
5937440
2015-03-15
00:02:24
2015-03-15
00:02:25
3
2331234
1231232
2015-04-01
"Let's hang out!"
00:11:08
Table Name: messages
message_id: Id of message
from_user_id: Id of user sending the message
to_user_id: Id of user receiving the message
date_sent: date that the message was sent
date_read: date that the message was read. NULL if message has not been read.
message: text of the message
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