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1. Research and provide three to four paragraphs covering the following: What is a subquery, and what are its basic characteristics? What (if any) differences are there between the construction of a subquery in MS Access, MS SQL Server or Oracle? What is a correlated subquery? Give an example of each type.Be sure to cite your references.
2. Based on the group E-R diagram you produced last week, create a data dictionary for your group project using Microsoft Excel. Use Page 233, Table 7.3, as a reference. Attach the data dictionary to this assignment in a single Excel document.
What is the difference between the information provided by the E-R Diagram and the data dictionary? Simply put, the data dictionary contains the data types for the physical implementation that will be done with SQL. It forms the basis for the metadata that will be used when creating the tables. An E-R diagram specializes a logical graphic model and it doesn't contain any data type or data information in a database.
Given the following EER diagram of the Museum Database.
How would you change the current design and how does your new design address the problems you have identified with the current design.
Create a form containing labels with each of the questions and a group of radio buttons for each question with the following responses: Always, Usually, Sometimes, Seldom, Never.
Analyse and comprehend a provided ER diagram and Database Schema and to implement a database based on the provided ER diagram and Database Schema
What is the key value of the 4th index record on the top level, assuming each index record points to the record with the highest key value in a block of the next level down?
You have just received a new computer at work. it runs fast and works great. thinking about the future and the day something might break explain why it is important to record this information.
Create tables in 3NF. As you create the database, include different codes for at least three of the fields. Use sample data to populate fields for at least three records in each table.
task 1 create 3 rows of data for each table ensuring that the referential integrity is valid.task 2 add the 30 rows of
Explain the idea for the database along with the thoughts for partitioned view. How would you utilize this partitioned view?
Describe how you would implement relationship between employees and projects in each of the given scenarios: Many employees can work on given project, but each employee can work on only single project.
From information system point of view, we should take the key functions of organization and map them to strategic information. Do your companies follow this process or are steps skipped?
A corporate venture has the resources of a large organisation and the entrepreneurial Benefits of a small one
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