Write an SQL query to extract the answer directly.

Q: Given a table students in SQL. Write a SQL query to add a column Address Varchar(30) in the student…

A: Given Table: students  We have to add a new column Address Varchar(30) to the given table students.…

Q: Display the list of students who are involved in the IT club Display the details of all the…

A: First get the studid from Club table and then get those Student details This can be done using inner…

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: WHY DO I get this error:SELECT TOP(3) p.name FROM publisher p ERROR at line 5: ORA-00923: FROM…

A: TOP command does not work in Oracle.

Q: Consider the following schema: Publisher (name, phone, city), PK: name. Book (ISBN, title, year,…

A: select b.title from Book b inner join (select e.bISBN from Edit e group by e.eSSN having count(*)…

Q: SOt block that uses a searched case statement to classity students based on their scores in a…

A: Answer in step2

Q: Explain the null functions in Oracle Sql

A: Software programs known as database management systems make it easier to create, organize, retrieve,…

Q: PL/SQL Create a simple loop that prints instructor names, where instructor IDs are in the range…

A: Required:   PL/SQL Create a simple loop that prints instructor names, where instructor IDs are in…

Q: . Write SQL statements to create a table named STUDENT, with the following columns: StdID:…

A: In this question we have to write SQL QUERY for the given table name STUDENT.Let's query and hope…

Q: orms Addition, Subtraction Mu

A: SQL (Structured Query Language) is a domain-specific language used for managing and manipulating…

Q: Explain the null functions in Oracle Sql

A: Null functions in Oracle SQL are essential for controlling and modifying null values in database…

Q: What does the following SQL query appear to do? SELECT category_name FROM categories WHERE…

A: The given SQL query selects the names of all categories that do not have any products associated…

Q: Write and execute a SQL query to list all patients whose information about race or gender has…

A: Answer: SQL Query: Method 1: select vvs.*, lag(race) over (partition by user order by age) as…

Q: 1. Write a SQL query to list first name, last name and rank of only professors whose rank is…

A: According to Bartleby Guidelines we need to answer only one question so I have answered first…

Q: Write a SQL query that would display only each unique salary from an employee table.

A: Your answer is given below.

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.