EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
12th Edition
ISBN: 9781305886841
Author: Morris
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 10, Problem 2P
Explanation of Solution
Concurrency control:
The purpose of concurrency control is to ensure the serializability of transaction in a multiuser
Common problems with concurrent transaction execution:
Concurrency transaction is one or more transactions are processed on same time. During the concurrency transaction execution the following problems can occur in the transaction. They are:
- Lost updates
- Uncommitted data
- Inconsistent retrievals
Lost updates:
A data can be lost when the two different transactions want to update same field or row within the database at the same time.
- For example: if the transactions “T1” and “T2” want to update the same element and one of the updates is lost or overwritten by other transactions.
Uncommitted data:
The data of the transactions are not committed when the transactions are executed concurrently...
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Node.js, Express, and Nunjucks Templates?
CIT244 Program Project 3 Assignment
As with any assigned program, do not wait until the last minute to start. Start early in the week
the program is due so you can ask questions if you get stuck
Node.js and Express and Nunjucks Templates
We have gotten to the good stuff. There is a program similar to this assignment
given as the last example in the lecture notes for the week that discusses node
static files. This program will take more time that previous assignments.
There are several examples you should study first, particularly the pizza order
example program available in the examples programs folder for the week
discussing static files. You should study and run the pizza order program before
trying this program.
The pseudo-company is called Sun or Fun, which offers cheap flights from
Louisville to either Miami or Vegas.
Here's a video of how it should work.
NOTE: You will hear or see references to Handlebars in this video. We used to
use Handlebars, but it will be Nunjucks that we…
Chapter 10 Solutions
EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
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Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Prob. 14RQCh. 10 - Prob. 15RQCh. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11P
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