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PART I: DATA DESCRIPTION LANGUAGE (DDL) 1) Write DDL commands to create the four tables without any constraint. Nom de colonne Signification STDNO SNAME DEPTNO Туре Number Size Student Number 8. Student name Varchar2 Varchar2 30 Department Number Department name Course Number 2 Varchar2 Number Varchar2 Number Number DNAME CORSNO 20 3 CNAME Course Name 30 СМАХ GRADE EDATE Max. students allowed Obtained Grade 2 2 Enrolment date Date 2) Add all the following constraints: - Primary Key - Foreign Key - Constraints on the STUDENT table: - Sname: Not Null - Each student must belong to a department Constraint on the ENROLMENT table *- Edate: have a default value equal to the system date.

PART I: DATA DESCRIPTION LANGUAGE (DDL) 1) Write DDL commands to create the four tables without any constraint. Nom de colonne Signification STDNO SNAME DEPTNO Туре Number Size Student Number 8. Student name Varchar2 Varchar2 30 Department Number Department name Course Number 2 Varchar2 Number Varchar2 Number Number DNAME CORSNO 20 3 CNAME Course Name 30 СМАХ GRADE EDATE Max. students allowed Obtained Grade 2 2 Enrolment date Date 2) Add all the following constraints: - Primary Key - Foreign Key - Constraints on the STUDENT table: - Sname: Not Null - Each student must belong to a department Constraint on the ENROLMENT table *- Edate: have a default value equal to the system date.

Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter7: Introduction To Structured Query Language (sql)
Section: Chapter Questions
Problem 97C: The following tables provide a very small portion of the data that will be kept in the database....
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solve this in sql (question2)

Exercise Consider the following relational database: (STDNO, SNAME, DEPTNO#) (DEPTNO, DNAME) (CORSNO, CNAME, DEPTNO#, CMAX) ENROLMENT (STDNO#, CORSNO#, GRADE, EDATE) STUDENT DEP COURSE STUDENT.DEPTNO is the department number of the student. COURSE.DEPTNO is the department number that offers the course. ENROLMENT models the registrations of students in courses (M:M relationship) where the GRADE is the grade obtained by the student in the course. PART I: DATA DESCRIPTION LANGUAGE (DDL) 1) Write DDL commands to create the four tables without any constraint. Nom de colonne Signification Size Туре Number STDNO Student Number 8. SNAME Student name Varchar2 30 Department Number Varchar2 DEPTNO 2 Department name Course Number DNAME Varchar2 20 CORSNO Number CNAME Course Name Varchar2 30 Max. students allowed Obtained Grade Enrolment date СМАХ Number 2 GRADE Number 2 EDATE Date 2) Add all the following constraints: - Primary Key - Foreign Key Constraints on the STUDENT table: Sname: Not Null Each student must belong to a department Constraint on the ENROLMENT table - Edate: have a default value equal to the system date.
Transcribed Image Text:Exercise Consider the following relational database: (STDNO, SNAME, DEPTNO#) (DEPTNO, DNAME) (CORSNO, CNAME, DEPTNO#, CMAX) ENROLMENT (STDNO#, CORSNO#, GRADE, EDATE) STUDENT DEP COURSE STUDENT.DEPTNO is the department number of the student. COURSE.DEPTNO is the department number that offers the course. ENROLMENT models the registrations of students in courses (M:M relationship) where the GRADE is the grade obtained by the student in the course. PART I: DATA DESCRIPTION LANGUAGE (DDL) 1) Write DDL commands to create the four tables without any constraint. Nom de colonne Signification Size Туре Number STDNO Student Number 8. SNAME Student name Varchar2 30 Department Number Varchar2 DEPTNO 2 Department name Course Number DNAME Varchar2 20 CORSNO Number CNAME Course Name Varchar2 30 Max. students allowed Obtained Grade Enrolment date СМАХ Number 2 GRADE Number 2 EDATE Date 2) Add all the following constraints: - Primary Key - Foreign Key Constraints on the STUDENT table: Sname: Not Null Each student must belong to a department Constraint on the ENROLMENT table - Edate: have a default value equal to the system date.
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