Q2\ design a data base in name A then create a table in name students that has Five column (id,name,stage ,subject and mark) then Find 1.the student who has the maximum mark? 2. change the column name id to st_id? 3.The summation of student marks? 4. the student who has the maximum mark ?

Q2\ design a data base in name A then create a table in name students that has Five column (id,name,stage ,subject and mark) then Find 1.the student who has the maximum mark? 2. change the column name id to st_id? 3.The summation of student marks? 4. the student who has the maximum mark ?

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

See similar textbooks

Similar questions

1-Write the syntax to insert into a relational table called students the address column references an object table called addresses that was created using an address_type. Other columns exist in the students table, but you are only inserting into the ones below. Aliases used should be the first letter of the table name, eg students would be s, addresses would be a Relational Table Name students attribute student_id attribute surname attribute address
SQL Query question
Create a table that store two degrees for class contains 6 students as on the right, we want to calculate the average of each entity, then store it in a new third column in the same array, display the final array. 30 40 10 70 20 30 80 70 30 10 35 10
Given the following tables, there is a university rule preventing a student from enrolling in a new class if there is an unpaid fine. Please write a table-level CHECK constraint to implement the rule. */ create table Course (CourseID int primary key, CourseName varchar(50), InstructorID int, AcademicYear int, Semester smallint); create table Student (StudentID int primary key, LastName varchar (50), FirstName varchar (50), Email varchar(30), PhoneNumber varchar (20)); create table Enrollment (CourseID int references Course(CourseID), StudentID int references Student(StudentID), RegisterDate date, primary key (CourseID, StudentID)); create table Fine (StudentID int references Student(StudentID), IssueDate date, Amount money, PaidDate date primary key (StudentID, IssueDate));
Employee(empno, ename, street, city, mgrssn) work_project(eno, pno, number_of_hours) Write a query and optimize it to find employee name and project number in which they work and who live in "New_york". Identify the type of indexing to be applied on 'empno' in Employee Table.
Q2: Design Database for the following scenario and Write SQL queries. Create an ERD for the following scenario. Suppose there is a grocery store near your house. Following can be considered for ERD: A grocery store may have more than one employee. A grocery store has exactly one manager. The manager has one or more sales men working under him. Grocery store has more than one portion for the products. • Each product has a barcode, name, expired date. Many customers can busy many products, but each product is bought by only one customer. Each customer will get an invoice for his /her purchase. The bill invoice has an id.
Refer to the film and inventory tables of the Sakila database. The tables in this lab have the same columns and data types but fewer rows. Write a query that lists the titles of films with the fewest rows in the inventory table. This query requires a subquery that computes the minimum of counts by film_id: SELECT MIN(count_film_id) FROM ( SELECT COUNT(film_id) AS count_film_id FROM inventory GROUP BY film_id ) AS temp_table; This subquery is provided in the template.
Third normal form says: a. No nonkey columns depend on another nonkey column. b. Every column that's not part of the primary key is fully dependent on the primary key. c. Eliminate repeated fields. d. None of the above.
Employees(employee id, first name, last name, salary, hire date, job title, manager id, department id) Departments(department id, department name, location_ id) Which of the following queries will display the name of all employees who does not work for 'EXECUTIVE' department a.SELECT first name, last name FROM employees WHERE department id not in (SELECT department id FROM departments WHERE upper(department name) = 'EXECUTIVE'); b.SELECT first name, last name FROM employees WHERE department id != (SELECT department id FROM departments WHERE upper(department name) = 'EXECUTIVE'); c.SELECT first name, last name FROM employees WHERE department id = (SELECT department id FROM departments WHERE upper(department name) = 'EXECUTIVE'); %3D d.SELECT first name, last name FROM employees WHERE department id In (SELECT department id FROM departments WHERE upper(department name) = 'EXECUTIVE');
Question 5 Suppose that you have the following table: CREATE TABLE coupons ( coupon id INTEGER name VARCHAR2 (30) duration INTERVAL YEAR (3) TO MONTH Now, considers the following INSERT statement: INSERT INTO coupons (coupon id, name, duration) VALUES (4, 'BD1.5 Corn Flakes, INTERVAL 1- 3 YEAR TO MONTH) The above INSERT statement stores the following data: A. 4 BD1.5 Corn Flakes +000-14 4 BD1.5 Corn Flakes +014-00 4 BD1.5 Corn Flakes +014 None of the above
Task B. Import the data shown in pictures into the two tables created.
Create a function to insert a new product into an existing order, include the product id, unit price, quantity. The output of the function is the message to notify the calling program whether the update succeeded or not. note : Note: Sql code need not java don't waste my time by giving java code