10. Create a query that displays the first eight characters of the employees' last names and indicates the amounts of their salaries with asterisks. Each asterisk signifies a thousand dollars. Sort the data in descending order of salary. Label the column EMPLOYEES_AND THEIR_SALARIES.

10. Create a query that displays the first eight characters of the employees' last names and indicates the amounts of their salaries with asterisks. Each asterisk signifies a thousand dollars. Sort the data in descending order of salary. Label the column EMPLOYEES_AND THEIR_SALARIES.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

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.

Question

SSK3408 Lab Practice 4 First Semester 2021-2022 K9
10. Create a query that displays the first eight characters of the employees' last names and indicates
the amounts of their salaries with asterisks. Each asterisk signifies a thousand dollars. Sort the
data in descending order of salary. Label the column EMPLOYEES_AND_THEIR_SALARIES.
11. Using the DECODE function, write a query that displays the grade of all employees based on the
value of the column JOB_ID, using the following data :
Job
Grade
AD_PRES
A
ST_MAN
В
IT PROG
C
SA_REP
D
ST_CLERK
None of the above
12. Rewrite the statement in the preceding exercise using the CASE syntax.
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