Question: When EXISTS or NOT EXISTS is used in a subquery, the select list of the subquery will usually just select all columns as a placeholder

When EXISTS or NOT EXISTS is used in a subquery, the select list of the subquery will usually just select all columns as a placeholder because it doesn't matter which columns are returned. A

.

True B

.

False

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

This looks long but is multiple selection question. Takes only few mintues. Question 1 The following are all valid locations in an SQL query for a subquery. According to the text, which is the most...

SQL Homework Exercises: Please choose the correct answer/s letter. 1. Examine the structures of the PLAYER and TEAM tables: PLAYER ------------- PLAYER_ID NUMBER PK LAST_NAME VARCHAR2(30) FIRST_NAME...

Question 4 When using a comparison operator (e.g. = > = = =

Assignment 1: Setting up Databases (15%) This assignment relates to the following Cowrse Learning Requirements: CLR 1 - Plan, Prepare, Install, Configure, and Use a market-leading Database Management...

Question 1 (3 points) The following are all valid locations in an SQL query for a subquery. According to the text, which is the most commonly used? In the ORDER BY clause as a sort order In the...

Help with mysql questions as much as you can Question 12 options: Suppose we have two tables, the first table has 5 rows and the second has 8 rows. A developer executes a cartesian product. There are...

Need some Oracle SQL assistance, please, Write a select statement that returns the same result set as the following SELECT statement but doesnt use a JOIN. Instead, use a SUBQUERY in a where clause...

Question 7 (3 points) Which of the following are true about correlated subqueries when used in WHERE clause conditions? Check only those that apply: When using the same table as the outer query, they...

An operation to join a table to itself is called a(n): a) sufficient-join. b) inner join. c) outer join. d) self-join. 7. A type of query that is placed within a WHERE or HAVING clause of another...

Leyland Co has engaged a consultant to perform a study on how to raise the profitability of the company. The consultancy fee totals $20,000 of which $15,000 has been paid. The following are the...

A component of an account balance has a recorded balance of $10000 and an audited value of $8.000 By using monetary unit sampling. If the sampling interval is $20,000. The projected misstatement...

1 . They would like to have an emergency fund equal to 6 months of living expenses and required payments. They will use their savings account for the emergency fund and would like this to be fully...

Which of the following are problems with identifying users of ABC? Multiple select question. ABC means different things to different organizations. Organizations will announce the discontinuance of...

A neglect of American-style managerialism. A lack of emphasis on those general aspects of management normally emphasized in Anglo-Saxon countries, although criticized by American commentators, does...

2 How should the Belgian management in the joint venture have handled the issue of recruitment?

Goal setting and appraisal. Several companies use goal setting extensively, and see it as useful. This involves the setting of individual targets, face-to-face performance discussions, and weekly to...