You have a table Employee(emplD,name,salary,address). What is the SQL command used to add JD10 for employees who live in Amman? Select one: a. update employee set address='Amman' where salary=salary+10; O b. update employee set salary=salary+10 where address='Amman'; O c. update employee set address='Amman' where salary=10; O d. update employee set salary=10 where address='Amman';

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
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You have a table Employee(empID,name,salary,address). What is the SQL
command used to add JD10 for employees who live in Amman?
Select one:
O a. update employee set address='Amman' where salary=salary+10;
O b. update employee set salary=salary+10 where address='Amman';
c. update employee set address='Amman' where salary=10;
O d. update employee set salary=10 where address='Amman';
Transcribed Image Text:You have a table Employee(empID,name,salary,address). What is the SQL command used to add JD10 for employees who live in Amman? Select one: O a. update employee set address='Amman' where salary=salary+10; O b. update employee set salary=salary+10 where address='Amman'; c. update employee set address='Amman' where salary=10; O d. update employee set salary=10 where address='Amman';
In relational algebra, what does the operator * do?
Select one:
O a. Performs a join between two tables
O b. Filters records based on a given condition
O c. Choose the columns I need from a table
O d. Performs a natural join between two tables based on attribues having the same name
Transcribed Image Text:In relational algebra, what does the operator * do? Select one: O a. Performs a join between two tables O b. Filters records based on a given condition O c. Choose the columns I need from a table O d. Performs a natural join between two tables based on attribues having the same name
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