Schema Diagram for University Database student takes ID ID course_id sec id semester пате dept_name tot cred year grade section course department course_id sec id semester year building course_id advisor title dept_name credits dept_name building budget s id i id time_slot time_slot_id day start_time end_time room_no time_slot_id prereq instructor classroom course_id prereq_id ID building room_no сараcity пате dept_name salary teaches ID course_id sec_id semester year

Q: Difference between count (*) and count (col_name). Explain with an example.

A: These are the function belongs to SQL's aggregate functions The count(*) function counts the total…

Q: How do scalar functions and table-valued functions differ in SQL, and when might each be preferred?

A: User-defined functions are adaptable tools for encapsulating logic and boosting query capabilities…

Q: In the ClassicModels database, use SQL to find out how which customer (i.e., its customerNumber) has…

A: In exploring databases, it's often essential to extract specific insights tailored to our needs. One…

Q: What's the retail price of the most expensive book written by Sam Smith? Determine the total profit…

A: We have to write the sql code for the given question. like- What's the retail price of the most…

Q: Write the T-SQL scripts for the following tasks:   Write a query to select the employees whose…

A: Please refer to the following step for the complete solution of the problem above.

Q: List the name of the production companies that have at least one movie with gross higher than…

A: The question has been answered in step2

Q: Using SQL:  List the CD title (i.e. `Title` field of `Titles` table) and the number of tracks (NOT…

A: SQL stands for Structured Query Language.

Q: EmployeelD Last Name First Name Address City Province PostalCode Phone BirthDate 507 - 20th Ave.…

A: 1- A trigger is created for AFTER insert situation. 2- When a row is inserted, a copy of the row is…

Q: Write a SQL query using their schema to find out who hasn't taken a course at the university. There…

A: SQL query: The Structured Query Language (SQL) query to identify all of the students' IDs who have…

Q: the HR department needs the department name, manager first name, manager last name, and job title.…

A: SQL: SQL stands for Structuref Query Language. It is used to access and manipulate the database…

Q: Create the following table in your database with the following schema: Table: Products Column Name 1…

A: As per our guidelines, only 3 sub parts will be answered. So, please repost the remaining questions…

Q: What is the query used to see if the date format is same and find values other than dates in the…

A: I am giving some examples along with queries to explain this. Suppose:…

Q: Using the retail.inventory table, pull the current stock percentage out of the future stock level…

A: The following solution is

Q: Write a SQL query to find the number of students in the school from the table:  Students (RollNo.,…

A: Given Table: Students (RollNo., Name, Father'sName, Class, Mobile No., Address) To Find: Count of…

Q: Write an SQL Query that will show the following attributes from theORDERS table: ORDER #, CUSTOMER…

A: “ORDER BY” Clause: SQL contains "ORDER BY” clause in order to sort rows. The values get sorted in…

Q: List at least 3 differences between Oracle PL/SQL programming functions and procedures (Differences…

A: Differences between Oracle PL/SQL programming functions and procedures   S.N.   function…

Q: Write a SQL query. List names of all employees who have sold to customer Rachel Patterson (Note: You…

A: In this database problem, we are tasked with creating an SQL query that lists the names of all…

Q: Please answer the following in SQL: Find all pairs of customers who have purchased the exact same…

A: Initially join all the tables as we have to basically need goods. csv table to check the flavor at…

Q: Write an SQL query to find all customers whose name (either last name or first name) contains…

A: The following SQL queries can be used to achieve various tasks related to data searching and…

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 university schema, write an SQL query to find the name and ID of each History student…

A: Introduction:  Structured Query Language is abbreviated as SQL, or is also pronounced as See-Qwell.…