WorksOn Database: Employee (EmployeeNumber, EmployeeName, BirthDate, Title, Salary, DepartmentNumber) Project (ProjectNumber, ProjectName, Budget, DepartmentNumber) Department (DepartmentNumber, DepartmentName, ManagerNumber) WorksOn (EmployeeNumber, ProjectNumber, Responsibility, Hours) Questions: 1) Write an SQL query that returns the project number and name for projects with a budget no greater than $1,050,000. 2) Write an SQL query that returns all works on records where hours worked is less than 5 and the responsibility is 'Manager'. 3) Write an SQL query that returns the employees (number and name only) who have a title of 'EE' or 'SA' and make more than $50,000. 4) Write an SQL query that returns the employees (name and salary only) in department 'D1' ordered by decrea
WorksOn Database: Employee (EmployeeNumber, EmployeeName, BirthDate, Title, Salary, DepartmentNumber) Project (ProjectNumber, ProjectName, Budget, DepartmentNumber) Department (DepartmentNumber, DepartmentName, ManagerNumber) WorksOn (EmployeeNumber, ProjectNumber, Responsibility, Hours) Questions: 1) Write an SQL query that returns the project number and name for projects with a budget no greater than $1,050,000. 2) Write an SQL query that returns all works on records where hours worked is less than 5 and the responsibility is 'Manager'. 3) Write an SQL query that returns the employees (number and name only) who have a title of 'EE' or 'SA' and make more than $50,000. 4) Write an SQL query that returns the employees (name and salary only) in department 'D1' ordered by decrea
Chapter12: Subqueries And Merge Statements
Section: Chapter Questions
Problem 19MC
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SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
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WorksOn Database :
Employee (EmployeeNumber, EmployeeName, BirthDate, Title, Salary, DepartmentNumber)
Project (ProjectNumber, ProjectName, Budget, DepartmentNumber) Department (DepartmentNumber, DepartmentName, ManagerNumber) WorksOn (EmployeeNumber, ProjectNumber, Responsibility, Hours) Questions:
1) Write an SQL query that returns the project number and name for projects with a budget no greater than $1,050,000.
2) Write an SQL query that returns all works on records where hours worked is less than 5 and the responsibility is 'Manager'.
3) Write an SQL query that returns the employees (number and name only) who have a title of 'EE' or 'SA' and make more than $50,000.
4) Write an SQL query that returns the employees (name and salary only) in department 'D1' ordered by decreasing salary.
5) Write an SQL query that returns the departments (all fields) ordered by descending department name.
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