For the given table 'films', 4 5 ld 1 2 3 2 3 6 4 5 ld 1 6 which of the following queries will result in the given output? release year 2015 2015 2015 2016 2016 2017 rating 8.0 8.5 9.0 8.2 8.4 7.0 release year rating 2015 8.0 2015 2015 2016 2016 2017 8.5 9.0 8.2 8.4 7.0 year_avg 8.5 8.5 8.5 8.3 8.3 7.0 O O O 1 SELECT f.id, f.release year, f.rating, AVG(rating) 2 OVER (PARTITION BY rating) AS year_avg 3 FROM films f ORDER BY release_year, rating; 1 SELECT f.id, f.release_year, f.rating, AVG(rating) 2 OVER (GROUP BY rating) AS year_avg 3 FROM films f ORDER BY release year, rating; 1 SELECT f.id, f.release year, AVG(rating) 2 OVER (PARTITION BY release year) AS year_avg 3 FROM films f ORDER BY rating, release_year; 1 SELECT f.id, f.release year, f.rating, AVG(rating) 2 OVER (PARTITION BY release year) AS year_avg 3 FROM films f ORDER BY release year, rating;

For the given table 'films', 4 5 ld 1 2 3 2 3 6 4 5 ld 1 6 which of the following queries will result in the given output? release year 2015 2015 2015 2016 2016 2017 rating 8.0 8.5 9.0 8.2 8.4 7.0 release year rating 2015 8.0 2015 2015 2016 2016 2017 8.5 9.0 8.2 8.4 7.0 year_avg 8.5 8.5 8.5 8.3 8.3 7.0 O O O 1 SELECT f.id, f.release year, f.rating, AVG(rating) 2 OVER (PARTITION BY rating) AS year_avg 3 FROM films f ORDER BY release_year, rating; 1 SELECT f.id, f.release_year, f.rating, AVG(rating) 2 OVER (GROUP BY rating) AS year_avg 3 FROM films f ORDER BY release year, rating; 1 SELECT f.id, f.release year, AVG(rating) 2 OVER (PARTITION BY release year) AS year_avg 3 FROM films f ORDER BY rating, release_year; 1 SELECT f.id, f.release year, f.rating, AVG(rating) 2 OVER (PARTITION BY release year) AS year_avg 3 FROM films f ORDER BY release year, rating;

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

Typed and correct answer please. i ll rate. Explain well.

For the given table 'films',
4
5
ld
1
2
3
6
4
5
ld
1
2
3
6
which of the following queries will result in the given output?
release year
2015
2015
2015
2016
2016
2017
rating
8.0
8.5
9.0
8.2
8.4
7.0
release year rating
8.0
2015
2015
2015
2016
2016
2017
8.5
9.0
8.2
8.4
7.0
year_avg
8.5
8.5
8.5
8.3
8.3
7.0
K
Je
Ⓡ
10
1 SELECT f.id, f.release year, f.rating, AVG(rating)
2 OVER (PARTITION BY rating) AS year_avg
3 FROM films f ORDER BY release year, rating;
1 SELECT f.id, f.release_year, f.rating, AVG(rating)
2 OVER (GROUP BY rating) AS year_avg
3 FROM films f ORDER BY release_year, rating;
1 SELECT f.id, f.release year, AVG (rating)
2 OVER (PARTITION BY release year) AS year_avg
3 FROM films f ORDER BY rating, release year;
1 SELECT f.id, f.release_year, f.rating, AVG(rating)
2 OVER (PARTITION BY release year) AS year_avg
3 FROM films f ORDER BY release year, rating;

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