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PostgreSQL SELECT Statement Syntax

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Questions and Answers

What is the purpose of the comma in the SELECT list?

To specify the FROM clause

To separate two columns in the list of columns (correct)

To indicate the end of the SELECT statement

To separate the table name from the column name

What happens if you omit the FROM clause in the SELECT statement?

The SELECT statement is executed without any issues (correct)

The SELECT statement only returns the column names

An error is generated

The SELECT statement returns data from all tables

What is the purpose of the asterisk (*) in the SELECT statement?

To separate two columns in the list of columns

To specify a list of columns

To select data from all columns in the table (correct)

To specify the table name

In what order does PostgreSQL evaluate the clauses in the SELECT statement?

FROM clause before the SELECT clause Signup and view all the answers

What is the case sensitivity of SQL keywords in PostgreSQL?

SQL keywords are case-insensitive Signup and view all the answers

What is the purpose of the SELECT statement in PostgreSQL?

To retrieve data from a table Signup and view all the answers

What is the command to switch to the dvdrental database in PostgreSQL?

\c dvdrental Signup and view all the answers

What is the purpose of the semicolon at the end of an SQL statement in PostgreSQL?

It is used to indicate the conclusion of an SQL statement Signup and view all the answers

What is the result of running the SQL query `SELECT first_name FROM customer;`?

A list of first names of all customers in the customer table Signup and view all the answers

What is the difference between `SELECT first_name, last_name, email FROM customer;` and `SELECT * FROM customer;`?

The first query returns only the specified columns, while the second query returns all columns Signup and view all the answers

What is the command to connect to the PostgreSQL server using the postgres user?

psql -U postgres Signup and view all the answers

What is the name of the table being queried in the examples provided?

customer Signup and view all the answers

PostgreSQL SELECT Statement Syntax

Choose a study mode

Podcast

Questions and Answers

What is the purpose of the comma in the SELECT list?

What happens if you omit the FROM clause in the SELECT statement?

What is the purpose of the asterisk (*) in the SELECT statement?

In what order does PostgreSQL evaluate the clauses in the SELECT statement?

What is the case sensitivity of SQL keywords in PostgreSQL?

What is the purpose of the SELECT statement in PostgreSQL?

What is the command to switch to the dvdrental database in PostgreSQL?

What is the purpose of the semicolon at the end of an SQL statement in PostgreSQL?

What is the result of running the SQL query `SELECT first_name FROM customer;`?

What is the difference between `SELECT first_name, last_name, email FROM customer;` and `SELECT * FROM customer;`?

What is the command to connect to the PostgreSQL server using the postgres user?

What is the name of the table being queried in the examples provided?

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PostgreSQL Extensions Overview

Upgrade to continue

PostgreSQL SELECT Statement Syntax

Choose a study mode

Podcast

Questions and Answers

What is the purpose of the comma in the SELECT list?

What happens if you omit the FROM clause in the SELECT statement?

What is the purpose of the asterisk (*) in the SELECT statement?

In what order does PostgreSQL evaluate the clauses in the SELECT statement?

What is the case sensitivity of SQL keywords in PostgreSQL?

What is the purpose of the SELECT statement in PostgreSQL?

What is the command to switch to the dvdrental database in PostgreSQL?

What is the purpose of the semicolon at the end of an SQL statement in PostgreSQL?

What is the result of running the SQL query SELECT first_name FROM customer;?

What is the difference between SELECT first_name, last_name, email FROM customer; and SELECT * FROM customer;?

What is the command to connect to the PostgreSQL server using the postgres user?

What is the name of the table being queried in the examples provided?

More Like This

PostgreSQL Isolation Levels Quiz

Quiz de SELECT en PostgreSQL

[05/Deseado/01]

PostgreSQL Extensions Overview

What is the result of running the SQL query `SELECT first_name FROM customer;`?

What is the difference between `SELECT first_name, last_name, email FROM customer;` and `SELECT * FROM customer;`?