consider the following schema and answer the following questions: Write the following queries in relational algebra. Find the names of vendors who are from ‘Suhar’. Find the IDs of products which are supplied at cost greater than 1000. Find IDs of vendors who supplies products with blue color. b. Write SQL queries for the following statements. Display all the product’s details in the decreasing order of their cost. Count and display the number of products supplied by each vendor. Add the given new Product’s data into the Product table. P_ID P_Nam P_color 2546 Picnic bag Brown
consider the following schema and answer the following questions: Write the following queries in relational algebra. Find the names of vendors who are from ‘Suhar’. Find the IDs of products which are supplied at cost greater than 1000. Find IDs of vendors who supplies products with blue color. b. Write SQL queries for the following statements. Display all the product’s details in the decreasing order of their cost. Count and display the number of products supplied by each vendor. Add the given new Product’s data into the Product table. P_ID P_Nam P_color 2546 Picnic bag Brown
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter11: Database Performance Tuning And Query Optimization
Section: Chapter Questions
Problem 2P: Problem 1 and 2 are based on the following query: SELECT EMP_LNAME, EMP_FNAME, EMP_AREACODE, EMP_SEX...
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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
consider the following schema and answer the following questions:
Write the following queries in relational algebra.
Find the names of vendors who are from ‘Suhar’.
Find the IDs of products which are supplied at cost greater than 1000.
Find IDs of vendors who supplies products with blue color.
b. Write SQL queries for the following statements.
Display all the product’s details in the decreasing order of their cost.
Count and display the number of products supplied by each vendor.
Add the given new Product’s data into the Product table.
P_ID
P_Nam
P_color
2546
Picnic bag
Brown
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