Answer to Ques 1
B) Define a check constraint on the column US_CITIZEN_INDICATOR to accept only 'Y' and 'N' as the values.
Answer to Ques 2
E) Attempt to insert the new row with fail
Answer to Ques 3
C) Every Unique key is a Primary key.
Answer to Ques 4
C) Define CUSTOMER_NUMBER from CUSTOMER table as a foreign key in ORDER table
Answer to Ques 5
A) Domain for the field PROBABILITY_OF_RAIN
You are designing a table for employee data of a company. You have a requirement to...
Database Management 6. [5] Create the following table: CREATE TABLE customer ( cust_name VARCHAR(30) NOT NULL, address VARCHAR(60), UNIQUE (cust name, address)); A. Run the following inserts and explain why both work and how will you prevent it INSERT INTO customer VALUES ('Alex Doe', NULL); INSERT INTO customer VALUES ('Alex Doe', NULL); 7. [5] Modify the following table definition to ensure that all employees have a minimum wage of $10 CREATE TABLE employee ( empId INT PRIMARY KEY, empName VARCHAR(40)...
QUERY EXAMPLE2 SELECTfrom Employee em (Refer to query example 2 to answer questions 12- 13) 12. You plan to join the Location table and fear there may be some employees with no location. You want to make sure that the query returns a list of all employee What join clause would you add to the query above? records. A. LEFT JOIN Location lo ON em.LocationlD lo LocationID B. RIGHT JOIN Location lo ON em.LocationID lo.LocationlD C. INNER JOIN Location lo...
DROP TABLE EMPLOYEE; DROP TABLE JOB; DROP TABLE EMP; DROP TABLE EMP_1; DROP TABLE EMP_2; CREATE TABLE JOB(JOB_CODE CHAR (3) PRIMARY KEY, JOB_DESCRIPTION VARCHAR (20) NOT NULL,JOB_CHG_HOUR NUMBER (5,2) NOT NULL,JOB_LAST_UPDATE DATE NOT NULL); INSERT INTO JOB VALUES('500','Programmer','35.75','20-Nov-2017'); INSERT INTO JOB VALUES('501','System Analyst','96.75','20-Nov-2017'); INSERT INTO JOB VALUES('502','Database Designer','125.00','24-Mar-2018'); CREATE TABLE EMPLOYEE(EMP_NUM CHAR (3) PRIMARY KEY,EMP_LNAME VARCHAR (15) NOT NULL,EMP_FNAME VARCHAR (15) NOT NULL, EMP_INITIAL CHAR (1),EMP_HIREDATE DATE NOT NULL,JOB_CODE CHAR (3), EMP_YEARS NUMBER (2),FOREIGN KEY (JOB_CODE) REFERENCES JOB (JOB_CODE)); INSERT...
MICROSOFT SQL SERVER - Create the following views 1.List the employee assigned to the most projects 2.List the project with the most hours SCRIPT TO BUILD DATABASE create table department ( dept_ID int not null , dept_name char(50) NOT NULL, manager_ID int not null, manager_start_date date not null, constraint Dept_PK primary key (dept_ID), constraint D_Name_AK unique (dept_name) ); insert into department values(1,'abc',1,'2019-01-08'); insert into department values(2,'abc2',2,'2019-01-08'); insert into department values(3,'abc3',2,'2019-01-08'); insert into department values(4,'abc4',2,'2019-01-08'); /*project table done*/ create table project...
I need help with the following SQL query for a company database (script given below). The name of the Department. The number of employees working in that department. The number of different projects controlled by this department. The name of the project controlled by this department that has the maximum number of employees of the company working on it. The number of the above project. The cumulative sum of the number of employees of the company working on the projects...
I NEED TO WRITE THE FOLLOWING QUERIES IN MYSQL (13)Next, grant to a user admin the read privileges on the complete descriptions of the customers who submitted no orders. For example, these are the customers who registered themselves and submitted no orders so far. The granted privilege cannot be propagated to the other users. 0.3 (14)Next, grant to a user admin the read privileges on information about the total number of orders submitted by each customer. Note, that some customers...
SQL Query Question: I have a database with the tables below, data has also been aded into these tables, I have 2 tasks: 1. Add a column to a relational table POSITIONS to store information about the total number of skills needed by each advertised position. A name of the column is up to you. Assume that no more than 9 skills are needed for each position. Next, use a single UPDATE statement to set the values in the new...
The employee is table, the best candidate for primary key is Select one: a. Department ID b. Employee hiredate c. Employee ID d. Employee salary Question 2 A primary key can be composed of more than one attribute. Select one: True False Question 3 A foreign key allows you to join two tables. Select one: True False Question 4 Given two tables, department (dept_id, dept_location, dept_name) and EMPLOYEE(emp_id, emp_name, emp_dept_id, emp_name, emp_salary), which attribute (column) is the foreign key? Select...
Lesson 10Create the DEPARTMENT tables based on the following: Column Name ID Name Data Type Number Varchar2 Length 7 25 Populate the DEPARTMENT table with data from the DEPT table. Include only columns that you need. Create the EMPLOYEE table based on the following table chart: Column Name ID LAST_NAME FIRST_NAME DEPT_ID Data Type Number Varchar2 Varchar2 Number Length 7 25 25 7 Modify the EMPLOYEE table to allow for longer employee last names. Confirm your modification. Confirm that both the...