Which one is correctSelect the constraint (if any) that is violated by each the following operations in questions. UseTables to answer the questions.STUDENTSCOURSESSTUDENT COURSEIDNAMEMAJORBDATECOURSEIDCNAMEPRECOURSESIDCIDGRADESarahCS1/2/19903/6/1991111Database1160SaharCS222Prog211144460AliCIS6/9/19881/11/19852/8/1986333Pregl66644450KhalidCS444Data struc.22222260AbedCIS555Java2223.55580OmarCS6/5/1993666Introduction3.44470Delete the course tuples with COURSEID 333O Key constraintEntity Integrity ConstraintDomain constraintReferential Integrity ConstraintOKey constraint & Domain constraintO Accepted

Here table Student_Course refers to table Course. So when we delete an entry from Course table we…

ect the constraint (if any) that is violated by each the following operations in questions. Use ples to answer the questions. STUDENTS COURSES STUDENT COURSE NAME MAJOR BDATE COURSEID CNAME PRECOURSE SID CID GRADE Sarah CS 1/2/1990 111 Database 60 Sahar CS 3/6/1991 222 Prog2 111 444 60 Ali CIS 6/9/1988 333 Progl 666 444 50 Khalid CS 1/11/1985 2/8/1986 444 Data struc. 222 3. 222 60 Abed CIS 555 Java 222 3. 555 80 Omar CS 6/5/1993 666 Introduction 3. 444 70 clete the course tuples with COURSEID = 333 - Key constraint OEntity Integrity Constraint DDomain constraint DReferential Integrity Constraint Key constraint & Domain constraint

ect the constraint (if any) that is violated by each the following operations in questions. Use ples to answer the questions. STUDENTS COURSES STUDENT COURSE NAME MAJOR BDATE COURSEID CNAME PRECOURSE SID CID GRADE Sarah CS 1/2/1990 111 Database 60 Sahar CS 3/6/1991 222 Prog2 111 444 60 Ali CIS 6/9/1988 333 Progl 666 444 50 Khalid CS 1/11/1985 2/8/1986 444 Data struc. 222 3. 222 60 Abed CIS 555 Java 222 3. 555 80 Omar CS 6/5/1993 666 Introduction 3. 444 70 clete the course tuples with COURSEID = 333 - Key constraint OEntity Integrity Constraint DDomain constraint DReferential Integrity Constraint Key constraint & Domain constraint

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a SQL query that retrieves the names and email addresses of all students who are enrolled in at least one course in the "Computer Science" department and have a graduation year of 2022 or later. Include the course name and instructor name for each enrollment in the output. Schemas of the tables are below. "students" table: student_id: unique identifier for the student name: name of the student email: email address of the student major: field of study for the student graduation_year: expected year of graduation for the student "courses" table: course_id: unique identifier for the course course_name: name of the course instructor_name: name of the instructor teaching the course. department: department offering the course. course_description: description of the course "enrollments" table: enrollment_id: unique identifier for the enrollment student_id: identifier for the student enrolled in the course. course_id: identifier for the course the student is enrolled in…
In the figure below, STUDENT relation has a composite primary key contains Stud_ID and Course_ID. This relation is STUDENT Stud ID Name Course ID Units 101 Lennon MSI 250 3.00 101 Lennon MSI 415 3.00 125 Johnson MSI 331 3.00
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
Datebase Design a) Write an SQL query to determine the total number of hours and the total number of lessons Tutor 106 taught in June and July 2018. b) Write an SQL query to list the Read scores of students who were ever taught by tutors whose status is Dropped. c) List all active students in June by name. (Make up names and other data if you are actually building a prototype database.) Include the number of hours students received tutoring and how many lessons they completed.
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The following three tables make up a simple reservation system for a small campground. The database should allow for a camper to make multiple reservations for future dates and for a camping spot to have several reservations for upcoming visits. Table: Camper CAMPER_NUMBER 1000 1001 1002 1003 CAMPER_LAST_NAME Jones Schmidt Williams Cooper CAMPER_FIRST_NAME Jamie Pat Clifford Amanda CAMPER_ADDRESS 1278 Essex Pl 4954 Spangled Way 956 Segull Lane P. O. Box 998877 CAMPER_CITY Birmingham El Paso Portland Portsmouth CAMPER_STATE AL TX ME OH CAMPER_ZIP_CODE 45251 79919 4108 45662 CAMPER_DRIVERS_LICENSE JJ998743-98 87632434 WIL885123 765A876B897 CAMPER_EMAIL jjones@somewhere.com patwonderfu34l@nowhere.net williams98342@foomail.com coopera@nowhere.net Table: Spot SPOT_NUMBER 101 102 103 104 SPOT_NAME The Pines The Glade Teardrop Spot Tent In Trees…
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Using the Henry Books database,Henry Books no longer carries books written by Barbara Owen. Delete this author from the authors table. You will insert 2 snips for this question. What construct did you use to delete author Barbara Owens? Insert the snip of the construct used: Insert the snip of the authors table. Be sure all rows are displayed:
What happens if we don’t specify the WHERE clause in an SQL DELETE FROM statement? a) statement compilation causes a “Syntax error”, and the statement is not executed. b) all the tuples of the relaton are deleted. c) none of the tuples of the relation is deleted. d) all the tuples not satisfying the condition are deleted. e) none of the above. Which one(s) of the following is(are) procedural? a) Relational Algebra b) Relational Calculus c) Tuple Relational Calculus d) Domain Relational Calculus e) SQL f) (a) and (e) e) (b) and (e).
Based on the following authorication commands (ordered from 1 to 4), which of the following privileges is true, assuming that Ali is the owner of the database? Order By Ali 1 2 3 4 Select one: Omar Ali Ali Command Grant Select on Employee to Omar with grant option; Grant Select on Employee to Samer with grant option; Grant Update on Employee to Omar with grant option; Revoke Select on Employee From Omar Cascade; a) Ali and Omar have Update privilege on employee Ali has select privilege on employee b) Ali and Omar have Update privilege on employee Omar and Samer have select privilege on employee elect c) Ali and Omar have Update privilege on employee Ali and Omar have select privilege on employee d) Ali and Omar have Update privilege on employee Ali, Omar and Samer have select privilege on employee