consider the database below and answer the query. pk refers to primary key and FK refers to foreign key.    Employee(Employee_id(PK), First_name, Last_name, Email, Phone_number,

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: Refer to the given tables. Salesperson Salesperson Commission Year of Department Manager Number Name…

A: In order for a relation to be in the 2NF, it must be: Should not include partial dependency in 1NF.…

Q: E. The AMD venue is where the music festival showcases up-and-coming bands. We want to identify…

A: This query can be defined in such a way that it will first be part of the ticket_sales_fact table…

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: write a query to drop all tables(Hint: make sure to consider foreign keys)

A: WE have to  write a query to drop all tables(Hint: make sure to consider foreign keys)

Q: Write a query to find the name of the student(s) who has scored maximum mark in Software…

A: Introduction: As per the given problem statement we are required to develop a SQL code to find the…

Q: What data types would you use for the attributes in this entity? How would you code a CREATE TABLE…

A: In a database management system (DBMS), an attribute is a piece of data that describes an entity.…

Q: Hospital Doctor Patient District Patient doctor h_id Hospital_name Area d_id d name p_id p_name c_id…

A: Primary Key:         Primary Key in a table ensures that the primary key value are unique and…

Q: Write SQL code for the following questions: Add a new table called SALES_YourFirstName. Please note…

A: As per company guidelines we are suppose to answer only 1 question. Kindly re-post other  questions…

Q: Using the World database, display the distinct districts that have more than 20 cities within them.…

A: To display the distinct districts that have more than 20 cities within them.   The query can be…

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

A: Referential Foreign Key

SQL Query

Structured Query Language is the full form of SQL. It is one of the standard languages to deal with the relational database. It is used to insert, update, delete, and search the records stored in a RDBMS. The relational databases are created and managed by using SQL.