-- 7. Using Boolean operators (AND, OR) and comparison operators (=, >, <, >=, <=, !=), write a query to display details for employees -- That work in the Sales or Marketing departments (DEPARTMENT_IDs 20 and 80) -- AND have a salary greatee tham or equal to $5,000 and less than or equal to $10,000. -- Sort the results by salary (descending) and employees’ last names and first names.
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.
Hello,
Can you please assist me with this?
-- 7. Using Boolean operators (AND, OR) and comparison operators (=, >, <, >=, <=,
!=), write a query to display details for employees
-- That work in the Sales or Marketing departments (DEPARTMENT_IDs 20 and
80)
-- AND have a salary greatee tham or equal to $5,000 and less than or
equal to $10,000.
-- Sort the results by salary (descending) and employees’ last names and first
names.
-- 8. Rewrite the query in the previous question using the operators IN and
BETWEEN.
-- 9. Using IN, write a query to display
-- The names and job IDs of the employees
-- In the sales and marketing departments (DEPARTMENT_IDs 20 and 80).
-- Sort the results by department and the employees’ last and first names.
-- 10. Rewrite the query in the previous question to find the employees in the
other departments by adding JUST ONE WORD to that query
Step by step
Solved in 3 steps
