In the relational model, a view can be used OA, as the basis of a derived view OB, all of these O C. in the INTO line in an SQL INSERT command OD, in the FROM line of an SQL query
Q: Write the sql commands to obtain the following information from the system catalog
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- Can you answer this two question as MYSQL statement using database that I uploaded Thank you Answer the following questions based on the above database: Create a view named “Atlanta_Charter_Crew_V” that includes the following “For each charter of aircraft to Atlanta (ATL), print the charter date, charter distance, and the corresponding crew (employee) number, last name, first name, and crew job”. Your answer should include both the SQL statement for view creation along with the contents of the view (you get the contents of the view by running the command select * from Atlanta_Charter_Crew_V;). Modify the MODEL table to add the following attribute and insert the values shown in the following table. (Note: use ALTER TABLE and UPDATE commands.) Attribute name Attribute Description Attribute type Attribute Values MOD_TOTAL_ WEIGHT Weight of each model Numeric 12,500 for C-90A 7,300 for PA23-250 19,770 for PA31-350In a sql database give an example of a search problem that will work with an inner join and will not work with an outer join. How would you write the query? Why does the search fail or succeed?Write a SQL statement to create a table job_history including columns employee_id, start_date, end_date, job_id and department_id and make sure that, the employee_id column does not contain any duplicate value at the time of insertion and the foreign key column job_id contain only those values which are exists in the jobs table. Field EMPLOYEE_ID START_DATE END DATE JOB_ID DEPARTMENT_ID Type Decimal(6,0) Date Date Varchar(10) Decimal(4,0) Null No No No No Yes Key pk fk Default Extra Null Null Null Null Null
- An actual SQL database example should be provided.Write SQL update statements to do the following on the database schema shown in Figure 1.i. Insert a new course, <‘Knowledge Engineering’, ‘CS4390’, 3, ‘CS’>.ii. Delete the record for the student whose name is ‘Smith’ and whose student number is 17.EMPLOYEE Frame Minit Lname Sen Bdate Address Sex Salary Super sen Dno +444 DEPARTMENT Dname Dnumber Mor an Mgr start date DEPT LOCATIONS Dnumber Dlocation PROJECT Prame Prumber Plocation Dnum WORKS ON Ennn Pno Hoir Hours DEPENDENT Esen Dependent name Se Bdate Relationship Reforential integrity constraints displayed on the COMFWNY relational database schema. One possible database state for the COMPANY relational database schema. EMPLOYEE Fname Minit Lname John Frankin T Sex Salary 30000 333445555 5 M 40000 Jo00665555 F 25000 Joe7e54321 43000 J88Ge5556 San Bdate Address Super en Dno 123456789 1965-01-09 731 Fondren, Hounton, TX M 333445555 1955-12-08 638 Voas, Houston, TX Go0087777 1960-01-19 3321 Castle, Spring. TX 987654321 1941-06-20 291 Berry, Bellaire, TX Narayan 666884444 1962-09-15 975 Fire Oak, Humibile, TX M B Smith Wong Zelaya Wallace 5 Alicia 4 Jennifer F 38000 333445655 25000 333445555 M 25000 007654321 M 55000 NULL Ramesh English 453453453 1972-07-31 5631 Rice, Houston, TX F…
- Assume the e-commercial database shown in the Appendix. Write the following queries in (a) relational algebra and (b) SQL. State your assumptions if the semantics is not clear. 1) Find the names of all students who have not taken any courses. APPENDIX STUDENTS(student id, first_name, last _name, email, major_code, class_year) COURSES(course id, course_name, course_description, credits, department_code) ENROLLMENTS(student id, course id, semester, grade) MAJORS(major code, major_name, department_code) DEPARTMENTS(department code, department_name)Prepare a MySQL script that creates your database, tables, and inserts a small sampling of madeupdata. Test it out in MySQL before submission For the below diagram write the SQL queriesWhich of the following can be the output of an operation in relational algebra?(a) An attribute(b) A relation(c) An expression(d) All of the above
- Write a SQL script that performs the following. Creates an updatable view based on the employee table. The view must contain the following features Rename all of the columns Display all "manager" records Insert 5 new records into the base table (using the view) Display all the view records using the base table (to verify that the view performed the inserts)Make your own relation instance(s)○ Determine a schema○ Write a CREATE command for the instance(s)○ Choose another SQL command that modifies the relation and write it in fullAssume the e-commercial database shown in the Appendix. Write the following queries in (a) relational algebra and (b) SQL. State your assumptions if the semantics is not clear. 1) Find the names of all students who have taken courses in both the Computer Science and Mathematics departments. APPENDIX - You may detach this page from the exam: STUDENTS(student id, first_name, last _name, email, major_code, class_year) COURSES(course id, course_name, course_description, credits, department_code) ENROLLMENTS(student id, course id, semester, grade) MAJORS(major code, major_name, department_code) DEPARTMENTS(department code, department_name)