Describe a situation in which you would need to write a query using the HAVING clause.

Q: In what situations is it necessary to add a GROUP BY clause in a query?

A: Group By clause is used when we have to group the data into groups.  It is used when we want to…

Q: Display names of all those students who have “A”

A: Note: There are multiple questions are given in one question. According to the rule, you will get…

Q: Write a query to fetch employee names and salary records. Display the employee details even if the…

A: Given: Write a query to fetch employee names and salary records. Display the employee details even…

Q: Write a query to produce the total number of hours and charges for each of the projects represented…

A: A query is a way to give instruction to the server to extract data from database. In SQL, SELECT…

Q: A query that returns all customer information

A: According to the question we need to create the following queries and stored procedures:3.2 A query…

Q: Which clause can be used to limit or filter the groups returned by a query that utilises a group…

A: To be determine: Which clause can be used to limit or filter the groups returned by a query that…

Q: In which clause should you include the condition "pubid = 4" to restrict the rows processed by a…

A: By the given problem, it is required to use the condition "pubid = 4" to filter the entries of the…

Q: Q3. Write a PL/SQL procedure to change the name of the project to “AL Dahariyah Projects” where…

A: PL/SQL procedure A stored procedure is a set of PL/SQL statements code that is written once and…

Q: Write a query to display the Director Name and their age. The result-set should only show directors…

A: CREATE TABLE director ( dir_age INT NOT NULL, dir_name VARCHAR(30) NOT NULL, ); INSERT INTO…

Q: Write a query to fetch details of employees whose EmpLname ends with an alphabet ‘B’ and contains…

A: GIVEN: Write a query to fetch details of employees whose EmpLname ends with an alphabet ‘B’ and…

Q: Write a query to display the book number, title and cost of books that have the lowest cost of any…

A: Query: In general, the term query describes a question or request that is made by a user or another…

Q: 1. Write a query that displays the employee number and last name of all employees who work in a…

A: Here is the answer:-

Q: Write a query to display the author ID, first and last name for all authors who have never written a…

A: Approach first we gonna to select all those book those are written in programing subject.(sub-query)…

Q: ​Create a Query with all products information whose price is >20.

A: Lets see the solution.

Q: Which clause can be used to restrict or filter the groups returned by a group function- based query?

A: To be determine: Which clause can be used to restrict or filter the groups returned by a group…

Q: What exactly is a query?

A: Query: A query is a request for data or information from a database table or combination of tables.…

Q: Write a SQL statement to create a foreign key in table Invoice_Detail that refers to the…

A: Write a SQL statement to create a foreign key in table Invoice_Detail that refers to the…

Q: Write a query to display the author ID, author last name, book title, checkout date, and patron last…

A: SYNTAX The syntax for the query is as follows. SELECT column1, column2 FROM table1 JOIN table2 ON…

Q: Write a query to display the customer code, first name, last name of all customers who made more…

A: Select: The SELECT statement is used to select data from a database. SELECT Syntax SELECT…

Q: How can you concatenate columns in a query?

A: To concatenate the columns in a query.   In the SQL,   You can concatenate two or more columns in a…

Q: Because the SELECT clause contains the Customer* column, which clause must be included for the query…

A: Clause used in the query The SELECT statement returns a result set of records from one or more…

Q: Write a query to display PUBDATE is after 21st January

A: Note: In this question, No table is given. We are creating a sample table to perform the query on…

Q: Select clause: Display the columns stated in the problem statement  From clause: AUTHOR table…

A: SQL is a structured query language, that's is used to extract and manipulate the data from the…

Q: Write a query to list the isbn of the books along with the number of authors for each book. If a…

A: For, solving the given query we are creating two tables book and bookauthor with the required column…

Q: Write a query to list the author last name, author first name and the book title and cost for each…

A: Solution: FROM: It is used to get data from the table WHERE: It is used to list the data where given…

Q: Write a query to display the total count of characters in the review comment given by the guest.…

A: Required:   From the given database schema we have to write a SQL query that displays the total…

Q: Create a query that lists all patients who have not had any appointment in the clinic in the last 2…

A: Note : As per guidelines , answering 1st 3 subparts of a question . Repost 4th part to get the…

Q: Write a query to verify that the data has been entered correctly.

A: First, insert data into the table using a query for example, declare @firstName varchar(500) =…

Q: Write a query to count the number of invoices  In the SQL Query do the following  In this query,…

A: count function in SQL is used to count the record, raw, columns in the table. syntax to count a…

Q: False

A: EXPLANATION A view in a database is nothing but a virtual table. A view can have rows and columns…

Q: Write a query to display the book title, price and publisher name for all books.

A: The question requires us to Write a query to Display the book title , price and the publisher name…

Q: Write a query that will show all attributes and field in the Movie table that do not contain a…

A: A query that will print all the attributes and fields in the table Movie that are null.

Q: Write an SQL query using the NOT operator that will show all employeeinformation from the Employee…

A: SQL query: SELECT * FROM Employee WHERE NOT Employee_Number = 7344;

Q: Write a query to find the name of employees that begin with alphabet 'A'

A: Given, In SQL we need to write a query that finds the name of employees that begin with the…

Q: d. write a query to retrieve the name of graduate student and student advisor name of all graduate…

A: The query works for both ms sql server and mysql.

Q: Write a Query using JOINS to display the Customer Name, Email, Delivery Address and Final Price of…

A: Explanation:  Here using INNER JOIN to join 2 tables customer and customer_order.Where clause is…

Q: If a subquery is used in the FROM clause of a query, how are the subquery’s results referenced in…

A: Results of a sub query used in FROM clause The FROM clause is used to list tables and any joins…

Q: rite a query to display the block number and number of departments in each block and give an alias…

A: Here two tables are involved in getting the desired result.  You can’t use only department table…

Q: Write a query to display the eight departments in the LGDEPARTMENT table sorted by department name

A: LGDEPARTMENT has primary key Dept_Num To specify all columns we can represent * in select statement…

Q: Write a query to display the trip name of all the trips that has Miles Abrams as guide. Sort your…

A: You didn't define as language for query, so i am doing it in SQL. Query SELECT trip_name FROM…

Q: What will be the result of the following query? SELECT count(*) FROM enrollment GROUP BY courseid;

A: query :  SELECT COUNT(*) FROM enrollment GROUP BY courceid; ans-> A - numbers 3 and 1  AMG ->…

Q: Write a query to retrieve the Fname and Lname in a single column as “FullName”. The first name and…

A: Given, Column name: Fname Lname FullName We need to separate the first name and the last name…

Q: write a query to retrieve the name of graduate student and student advisor name of all graduate…

A: Query to find or retrieve the name of graduate student and student advisor name of all graduate…

Q: Question No. 4:…

A: 1-Display names of all those students who have "A" grades: We must join Student to display student…

Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.