MPLOYEE FNAME MINIT LNAME SSN BDATE ADDRESS SEX SALARY DNO DEPARTMENT DNAME DNUMBER MGRSSN MGRSTARTDATE DERT LOCA TION

Q: Write SQL queries that will do the following: 1. List the name and the ID of all patients 2. List…

A: We are given 3 tables along with the data, we have going to write SQL queries for the given problems…

Q: Translate your ER diagram into a relational schema in the form of SQL DDLs. Choose appropriatedata…

A: The schema represents the layout of the database. For instance, suppose there are three to four…

Q: Employee_Id, First_Name, Last_Name, Email, Phone_Number, Hire_Date, Job_Id, Salary, Commission_Pct,…

A: a. To get the average salary and number of employees working in department 90, we can use the…

Q: Because the order of operands (tables) matters in an EXCEPT (MINUS) query but not in a UNION query,…

A: - We need to talk about the difference in using EXCEPT and UNION queries.

Q: ELECT Rating FROM Professor P1 VHERE 5>= (SELECT COUNT(*) FROM Professor P2 WHERE P1.Rating…

A: Introduction :

Q: PLZ help with the following: Using Oracle SQL developper Translate your ER diagram into a…

A: E-R Diagram is given with different attributes and relationships between them.

Q: Determine the functional dependencies that exist in the following table and then convert this table…

A: OFFICE (OFFICE_NUM, OFFICE_NAME, (ADDRESS, SQR_FT, BDRMS, FLOORS, MONTHLY_RENT, OWNER_NUM)) So first…

Q: 13. Find the name of all patients whose ID ends with '445' 14. Add new medicine to the database 15.…

A: the query to perform the operation is written below. 13.select P_name from Patient where ID='%445';…

Q: For the following table for student grades, create a relational data model after normalization using…

A: Here our task is to create the given table in mysql which follows 3 NF. Here as we can observe…

Q: What is the result of first performing the cross product of student and advisor, and then performing…

A: Introduction: Cross Product: Cartesian Product in DBMS is an operation used to merge columns from…

Q: Using the following DB schema for the PATIENT table, right a query that will return all fields for…

A: Answer: SELECT * from PATIENT WHERE State=“KS” and State LIKE ‘K%’ ORDER BY MRN asc;

Q: The Car Maintenance team also wants to store the actual maintenance operations in the database. The…

A: DELETE CASCADE: - When we constitute a foreign key using this option, it deletes the referencing…

Q: 1)Use querv tree to optimize the following query. SELECT order_num, mfr, product, rep, price From…

A: Steps to optimize the following query:-   To optimize the above query using a query tree, the…

Q: You are not required to execute the queries. However, your syntax must by accurate.You must give at…

A: Hey, since there are multiple sub-part questions posted, we will answer first three questions. If…

Q: Compute the average number of hours for the courses offered by each college.

A: Below i have written the query:

Q: Given the following relations, write an SQLite query with JOIN keyword to retrieve the full name of…

A: As per the question statement, We need to write Sqlite query for the requirement.

Q: What is the result of first performing the cross product of student and advisor, and then performing…

A: The answer for the above question is given in the below steps for your reference.

Q: 4. Find the names of patients who have a prescription that contains the medicine called Panadol. 5.…

A:

Q: Use the following relational schemas for answering the queries in relational algebra; STUDENT(ID,…

A: Query for the given conditions: SELECT ID , Phone FROM STUDENT WHERE name LIKE '%Kumar%' Here Its…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: There is only one error in the above code and that is the ALTER TABLE command on the address table.…

Q: 19. The following code refers to the sample data in the table people. What is the result of each…

A: Note: - As per the guidelines we can only answer one specific question at a time. Please resubmit…

Q: Express each query using Relational Algebra (RA) expression (use sequence of operations and the…

A: Due to the honor code, i can solve only 1 question. Resubmit the remaining questions 1)  Let create…

Q: SID 1234 Student Name Abdullah Naif Rayan Suleman Grade 95 94 92 93 Enrolled Department Dept-ID CS…

A: Natural join used to combine two table having common attributes, natural join will return the tuple…

Q: Consider the following schema and write the following queries in relational alge Product(pid, pname,…

A: 1. Use selection operator to select only those product where pname is shoes.…

Q: Create Relational Model of the given ERD. Highlight the mandatory foreign keys in your relational…

A: Objective: An entity-relationship diagram is given including several relations like Book, Publisher,…

Q: This is the problem: (from Database Systems Book, 13th ed) Write a query to display the author last…

A: Create table AUTHORS_OF_BOOKS using the below query: SQL QUERY: /* Create a table called NAMES…

Q: Write and execute a SQL query to list all patient numbers and encounter ids which do not have any…

A: Actually, SQL stands for Structured Query Language.

Q: Using the instance of the Airport database, formulate the following queries in the relational…

A: Relational algebra which refers to the a procedural query language. It also which gives a step by…

Q: 15. List the first name for all contacts and whether they have a spouse or not (yes/no). Order by…

A: Structured Query Language : SQL ( Structured Query Language) is an area explicit language utilized…

Q: The table STUDENT has the attributes STUDENT_ID, NAME, SCHOOL_ID, and ADDR. The table SCHOOL has the…

A: In the realm of relational databases, it's essential to understand how to perform joins between…

Q: What is the result of first performing the cross product of student and advisor, and then performing…

A: The cartesian product allows us to combine information from any two relations. The cartesian product…

Q: Consider the employee relation in the screenshot provided   and answer the questions that follow.…

A: Answer a) Select emp_name, Salary from employee where Salary >=2500.00 and Salary <=4000.00…

Q: the following schema ,write the relational algebra queries for the following:…

A: Every database management system must define a query language to allow users to access the data…

Q: Report the eid of every employee who manages at least two different people. Use the usual technique…

A: Below i have given sql query for the desired question:

Q: The foreign key in the table adult is called a foreign key.

A: Referential Foreign Key

Q: Given the relation members(mid: INTEGER, name: CHAR(30), age: INTEGER, tier: INTEGER) Write a SQL…

A: Aggregate functions used: COUNT() -> calculate each tier with more than 2 members  -> Need to…

Q: The table STUDENT has the attributes STUDENT_ID, NAME, SCHOOL_ID, and ADDR. The table SCHOOL has the…

A: The objective of the question is to identify the correct SQL query that will create a table showing…

Q: 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the…

A: First check whether phone_id column exists in your customer, staff, and store table or not. If…

Q: Using the Schema - data/statistics Write down the following SQL queries. Assume appropriate data…

A: Create appropriate tables and do the given SQL queries     Note: Dear user, as per company policy we…

Q: Using the Henry Books database, decrease the inventory of book code 6128 at branch 2 by one

A: The given problem is related to database where a statement is needed to make required change in a…

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.