Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 6, Problem 16RQ
A table is in __________ normal form when it is in __________ and there are no transitive dependencies.
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In java create an application to manage your data base
information the database is already created in mysql
tables, the tables are fill, So the user can use your
database application user friendly
Retrieve all data: Given a table name, retrieve all data
from the table and present it to the user.
Average: Given a table name and a column name, return
the average of the column. Here the assumption is that
the column type will be numeric (e.g., cost column).
Insert: Given a table name, your program should show
the column names of that table and ask the users to
input new data to the table. In case of errors, your
program should directly show the MySQL errors to the
users.
Assumption 1: Users will enter data according to the
database constraints.
Assumption 2: Users will input one record at a time.
Delete: Given a table name, your program should show
the column names of that table and ask the users to
input data that they want to delete.
Assumption 1: Users will enter data according to the…
How do data dictionaries aid in mapping dependencies between data elements?
Question 5
Assume you are given a dictionary student_dict with Mary taking ACT101,
FIN202, MIS310 and MIS340, Steve is enrolled in FIN202, MKT300 and
MIS310, and Paul is registered for ACT101 and MKT300. With Ist initially set
to an empty list, which of the following would complete the code that will
correctly produce the list of students taking MIS courses.
for key in student_dict:
for val in student_dict [key]:
if 'MIS' in
1st.append(
and
O val; val; 1st; key
O val; val; 1st; val
O val; key; 1st; val
O val; key; 1st; key
Question 6
0.5 pts
not in
0.5 pts
Given the customer reviews shown below, which one of the following would
correctly display the first company's name XYZ, Inc.?
+
100%
O
KH
Chapter 6 Solutions
Database Systems: Design, Implementation, & Management
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- fa table in a SQL database has a column of type `VARCHAR(100)", what does the "100" signify? a) The number of records that can be stored in the column. b) The number of unique characters that can be stored in the column. c) The maximum length of a string that can be stored in the column. d) The minimum length of a string that can be stored in the column.arrow_forwardList data_list contains integers read from input, representing a sequence of data values. For each index i of data_list from 1 through the second-to-last index: The element at index i is a drop if the element is less than both the preceding element and the following element. If the element at index i is a drop, then output 'Drop: ', followed by the preceding element, the current element, and the following element, separating each element by a space.arrow_forwardC sharp Table: Student (the headers are the field names in the Students table) StudentID Name Age Gender ProgramID 791 Stephanie Brown 19 Female BCS 236 Shannon Dawn 25 Female BA 618 Geoff Berg 24 Male ARET 256 Andrew Schilling 22 Male BSC 902 Gary Sang 23 Male DAAD Note: There is a StudentDataSet with a Student table, a StudentTableAdapter, a StudentBindingSource, and a StudentDataGridView control on the form.Note: There is an Average query, named Average, that returns the average age of the student from the Student table.Note: There is also Max query, named Highest, that returns the highest age of the student from the Student table.Write the code you would place in the AverageButton click event on your form to call the Average query and the Highest query and display in a DifferenceLabel, the difference between the highest age of a student and the average age.arrow_forward
- The Save Transaction button depicted in the screen attached is used to save relevant data to the sales table and the salesdetails tables from the depicted schema. When this button is clicked it calls the saveTransaction() function that is within the PosDAO class, it passes to this function an ArrayList of salesdetails object, this list contains the data entered into the jTable which is the products and qty being sold.Write the saveTransaction function. You are to loop through the items and get the total sales, next you are to insert the current date and the total sales into the sales table. Reminder that the sales table SalesNumber field is set to AUTO-INCREMENT, hence the reason for only entering the total sales and current date in sales table.arrow_forwardCreate a structure course with some attributes i.e course_ID, course_title, credit_hrs etc.. Then Implement following 5 functions (Known as CRUDS operations which means CREATE, READ, UPDATE, DELETE, SEARCH operations): 1. addAStudent 2. updateAStudent 3. deleteAStudent 4. searchAndDisplayAStudent 5. displayAllstudents After that, create an array of 5 courses in main function. Create a menu in main function to enable user to select and perform the operations we created above. Program must not exit until and unless user wants to do so. Sample Menu: Main Menu --------------- Press 1 to add a Course Press 2 to update a Course Press 3 to delete a Course Press 4 to search and display a Course Press 5 to display all Courses Press e to exit the program... Do this program in c++ language.arrow_forward10 In a data dictionary, some data elements have _____ rules. For example, an employee’s salary must be within the range defined for the employee’s job classification. a. mastered b. domain c. range d. validityarrow_forward
- Connecting a field object from a dataset to a control is called __________.arrow_forwardDefine Columns?arrow_forwardCreate a structure course with some attributes i.e course_ID, course_title, credit_hrs etc.. Then Implement following 5 functions (Known as CRUDS operations which means CREATE, READ, UPDATE, DELETE, SEARCH operations): 1. addAStudent 2. updateAStudent 3. deleteAStudent 4. searchAndDisplayAStudent 5. displayAllstudents After that, create an array of 5 courses in main function. Create a menu in main function to enable user to select and perform the operations we created above. Program must not exit until and unless user wants to do so. Result: Sample Menu: Main Menu --------------- Press 1 to add a Course Press 2 to update a Course Press 3 to delete a Course Press 4 to search and display a Course Press 5 to display all Courses Press e to exit the program Write this programme in c++arrow_forward
- which description defines data type? a) It is a named set of values. b) It is an unnamed tuple of values. c)It has values corresponding to columns. d) It has a name and varying set of row.arrow_forward_______________ is a special purpose programming language for accessing and manipulating data stored in a relational database.arrow_forwardcalculate_new_balance Given a starting balance (a number), and a list of transaction tuples, calculate the final balance for an account. Transaction tuples are of the shape ("description", amount, "withdrawal") , or ("description", amount, "deposit"). The last entry in the tuple will be either "withdrawal" or "deposit". Every withdrawal decreases the balance of the account by the specified amount, and every deposit increases the balance. The return value is the new account balance, as a number. (which could be negative) Sample calls should look like: >>> calculate_new_balance(100, [("payday", 20, "deposit"), ("new shoes", 50, "withdrawal"), ("illicit winnings", 200, "deposit")])270>>> calculate_new_balance(100, [])100arrow_forward
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