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Based on the Schumacher (2010) article, describe when you would use an open source database and when you would not.
What is a subquery? When is it used? Does the RDBMS deal with subqueries any differently from normal queries? Illustrate with examples different types of sub-query and co-related subqueries (nested etc).
Consider a database with objects X and Y and assume that there are two transactions T1 and T 2. Transaction T 1 reads objects X and Y and then writes object X. Transaction T 2 reads objects X and Y and then writes objects X and Y.
Modify the No Interest Credit Company application so it executes continuously for any number of customers until a sentinel value is supplied for the account number.
Design a minimal relational database for Pieces Boutique. By minimal, it is meant that option to post a key into existing table because of either needed participation or a discernible high load could be exercised where appropriate.
What about giving same name to attributes which are in different tables but are not same? For instance, "Description" in both a Course table and a Classroom table.
A few years have passed, and the restaurant has grown to become a national restaurant chain. Now, they are concerned that remote and branch offices and restaurants in all fifty states will not have ready access to the data.
let's consider location information for DUI checkpoints. If law enforcement agencies publish this information, is it okay to have law an app for drivers
Find the names and cities of residence of all employees who work for ABC Corporation
Which of the following subnet masks would offer 30 usable subnets with a minimum of 2040 usable hosts per subnet? We have been assigned the IP address in the exhibit. Choose the best answer.
What is the term for the number used to reference an array element? The number of elements in an array is called the ______ of the array. Arrays are most efficiently processed using ______
Suggest how to implement direct-address table in which keys of stored elements don't require to be distinct and elements can have satellite data.
Create your first mock-up of this interface - Based off of your previously chosen organization, you will now begin the design.
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