Inner join only returns matching rows between two tables, while outer join returns both matching and non-matching rows, with null values for non-matching rows.
An inner join in SQL only returns the rows that have matching values in both tables being joined. It combines rows from both tables that have a matching value in the specified column or columns. The result set of an inner join contains only the data that matches between the two tables.
On the other hand, an outer join in SQL returns all the rows from one table and only the matching rows from the other table being joined. In an outer join, if there is no matching row in the second table, then NULL values are returned for the columns of the second table. There are three types of outer joins: left outer join, right outer join, and full outer join.
A left outer join returns all the rows from the left table and only the matching rows from the right table. A right outer join returns all the rows from the right table and only the matching rows from the left table. A full outer join returns all the rows from both tables, including the rows that don't have matching values in the other table, and returns NULL values for the columns of the table that doesn't have a match.
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A company is monitoring the number of cars in a parking lot each hour. each hour they save the number of cars currently in the lot into an array of integers, numcars. the company would like to query numcars such that given a starting hour hj denoting the index in numcars, they know how many times the parking lot reached peak capacity by the end of the data collection. the peak capacity is defined as the maximum number of cars that parked in the lot from hj to the end of data collection, inclusively
For this question i used JAVA.
import java.time.Duration;
import java.util.Arrays;;
class chegg1{
public static int getRandom (int min, int max){
return (int)(Math.random()*((max-min)+1))+min;
}
public static void display(int[] array){
for(int j=0; j< array.length; j++){
System.out.print(" " + array[j]);}
System.out.println("----TIME SLOT----");
}
public static void main(String[] args){
int[] parkingSlots= new int[]{ -1, -1, -1, -1, -1 };
display(parkingSlots);
for (int i = 1; i <= 5; i++) {
for(int ij=0; ij< parkingSlots.length; ij++){
if(parkingSlots[ij] >= 0){
parkingSlots[ij] -= 1;
}
else if(parkingSlots[ij]< 0){
parkingSlots[ij] = getRandom(2, 8);
}
}
display(parkingSlots);
// System.out.println('\n');
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
output:
-1 -1 -1 -1 -1----TIME SLOT----
8 6 4 6 2----TIME SLOT----
7 5 3 5 1----TIME SLOT----
6 4 2 4 0----TIME SLOT----
5 3 1 3 -1----TIME SLOT----
4 2 0 2 4----TIME SLOT----
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A data unit created at the transport layer by UDP is a _____.
A. segment
B. packet
C. datagram
D. frame
Answer:
A datagram
Explanation:
Protocol data units for the Internet protocol suite are: The transport layer PDU is the TCP segment for TCP, and the datagram for UDP. The Internet layer PDU is the packet.
Answer:
I think it's Datagrame
Explanation:
Which feature of REPL.it would you use to transmit your program to a friend?
execute
share
run
post
Answer:
share
Explanation:
It's in the name of the option.
Answer:
Its share because Share is when you share to someone or your friend
execute is wrong
run doesnt make sense
post means that your posting a program to the world
Explanation:
When an entrepreneur has three employees at a busy and growing software company, what is the primary responsibility of the employees?
create the product that customers want
explain business decisions to stakeholders
identify and contact financial investors
select new types of software to sell
Answer:
A: Create the product that customers
Explanation:
I did it on edgy
Answer:
(A). Create the product that customers want
Explanation:
I got it right on edge2020.
why do applications have a white screen that pops up for a few seconds before showing the applcaition
Your SD card may be the source of the white screen of death problem if you have relocated your programs there and are using them from that location.
What does a white blank screen mean?This error typically results from one of the following causes: There is a hardware issue with your device. A crucial driver or drivers—usually the graphics card driver—are malfunctioning. They can be tainted or simply out of date. The system's operation is being hampered by a background program.Your SD card may be the source of the white screen of death problem if you have relocated your programs there and are using them from that location. By relocating the programs to the internal storage, you can resolve this. Download the Move app to SD card app for free on your phone.To learn more about screen refer to:
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Which of the following are results of technological advancements and increased automation?
Increased labor demand
Decreased productivity
Increased cost
Increased productivity
Answer:
increased productivity
Explanation:
sorry if i am not correct
I will give free brainiest if you guess my favorite car among these 3
Corvette
LaFerrari
Porsche
Answer:
LaFerrari
Explanation:
make a story that ends in ´ I have never found such a kind person ever since´
What is the value of the variable moneyDue after these lines of code are executed?
>>> numSodas = 2
>>> costSodas = 1.50
>>> moneyDue = numSodas * costSodas
Answer:
3.0
Explanation:
To understand why there is a blank decimal, we have to understand that when you add multiply or subtract with a float (in python), the result will also be a decimal, even you use a blank decimal in the equation. A circumstance where the output would just plain 3, you would have to put in the following:
>>>int(moneyDue)
To insure it will output an int. However, it does not use that line of code, thus proving the answer is 3.0.
hope this helped :D
Answer:
3.0
Explanation:
edge
Which of the following describes an action that serves a goal of equity
Answer:
Please complete your sentence for me to answer.
2 ways to make your computer work faster ( please help asap )
Answer:
clean up space or reboot ur computer or delete unwanted apps and files .
Explanation:
What is work group computing and what are the advantages and disadvantages thereof?
Workgroup computing refers to a collaborative approach to computing and information sharing within a specific group or team in an organization.
It involves the use of computer technologies and software tools to facilitate communication, collaboration, and data sharing among group members. Workgroup computing typically emphasizes teamwork, information sharing, and coordination to achieve common goals.Advantages of workgroup computing include:Enhanced Collaboration: Workgroup computing enables team members to collaborate more efficiently by sharing documents, files, and information in real-time. It promotes seamless communication and collaboration, leading to improved productivity and better decision-making.Improved Coordination: Workgroup computing allows for better coordination and synchronization of tasks and activities within a team. It enables team members to stay updated on project progress, assign tasks, and track milestones, leading to better project management and workflow efficiency.Centralized Data Management: Workgroup computing systems often provide centralized data storage and management, ensuring that all team members have access to the latest and relevant information. This reduces data redundancy, improves data integrity, and facilitates information retrieval.
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18. WHICH MENU WOULD MOST LIKELY ALLOW YOU TO ADJUST YOUR LINE SPACING? *
EDIT
FILE
F0RMAT
INSERT
Explanation:
FORMAT
because it is used for the general appearance of the page
Although there are specific rules for furniture placement that should generally be followed, sometimes you will need to bend the rules a little bit. When might it be acceptable to bend the rules for furniture spacing?
However, it might be acceptable to bend the rules for furniture spacing in certain situations such as:
1. Limited space: If you have a small room, you may need to move furniture closer together than recommended to make the most of the available space.
2. Personal preferences: If you prefer a certain arrangement that may not follow the standard rules, it is acceptable to adjust the spacing to suit your taste and style.
3. Unique room layout: Sometimes, the shape and layout of a room may require you to adjust the furniture spacing to fit the space properly.
4. Multifunctional spaces: If a room serves multiple purposes, such as a living room that also serves as a home office, you may need to modify the furniture placement to accommodate the different functions.
Regardless of the situation, it's crucial to ensure that the furniture arrangement still provides a comfortable and functional space.
Developers at an organization are working on a new application. Which approach do the developers use to test the infrastructure that supports the application?
The developers would use a combination of unit testing and integration testing to test the infrastructure that supports the application. Unit testing involves testing individual components or modules of the infrastructure to ensure they are functioning correctly, while integration testing involves testing how the components work together as a whole.
There are a number of approaches that developers can use to test the infrastructure that supports a new application. Some of the most common approaches include:
Unit testing: Unit testing is a method of testing individual units of code, such as functions or classes. Unit tests are typically written by the developers who wrote the code they are testing. Integration testing: Integration testing is a method of testing how different units of code interact with each other. Integration tests are typically written by the developers who wrote the code they are testing. System testing: System testing is a method of testing the entire application as a whole. System tests are typically written by a separate team of testers who are not involved in the development of the application. Acceptance testing: Acceptance testing is a method of testing the application to ensure that it meets the requirements of the customer. Acceptance tests are typically written by the customer or a representative of the customer.In addition to these traditional testing approaches, developers can also use a number of automated testing tools to help them test the infrastructure that supports their applications. These tools can be used to automate unit tests, integration tests, system tests, and acceptance tests.
The best approach for testing the infrastructure that supports a new application will vary depending on the specific application and the organization's testing needs. However, all of the approaches listed above can be effective in helping to ensure that the application is reliable and meets the needs of the customer.
Here are some additional tips for testing the infrastructure that supports a new application:
Start testing early: The earlier you start testing, the more likely you are to find and fix problems. Test in a variety of environments: Test the application in a variety of environments, including development, staging, and production. Use a variety of testing tools: Use a variety of testing tools to ensure that you are testing all aspects of the application. Get feedback from users: Get feedback from users throughout the testing process. This feedback can help you identify problems that you may have missed.By following these tips, you can help to ensure that your new application is reliable and meets the needs of your users.
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in this lab, you will complete a prewritten java program that computes the largest and smallest of three integer values. the three values are –50, 53, and 78.
The pre-written Java program computes the largest and smallest of three integer values (-50, 53, and 78) using conditional statements. The largest number is printed first, followed by the smallest number.
In this lab, you will complete a pre-written java program that computes the largest and smallest of three integer values.
The three values are -50, 53, and 78.In order to compute the largest and smallest of the three integer values (-50, 53, and 78), we can write a Java program that makes use of conditional statements to evaluate which number is greater or smaller.
Here is the program code to compute the largest and smallest of three integer values.
```public class LargestSmallest{public static void main(String[] args) {int a=-50, b=53, c=78;int largest, smallest;if(a>b && a>c){largest=a;}else if(b>a && b>c){largest=b;}else{largest=c;}System.out.println("Largest number is "+largest);if(a
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It has been suggested that one of the problems of having a user closely involved with a software development team is that they ‘go native’. That is, they adopt the outlook of the development team and lose sight of the needs of their user colleagues. Suggest three ways how you might avoid this problem and discuss the advantages and disadvantages of each approach
To avoid the problem of a user going native and losing sight of the needs of their colleagues, three approaches can be taken.
involve a diverse group of users in the software development processhave regular check-ins with users to receive feedback implement user testing throughout the development process to ensure the software meets the needs of users.1. Regularly rotate user representatives: By rotating user representatives within the software development team, you can prevent them from becoming too attached to the developers' perspectives. This ensures fresh viewpoints and maintains the focus on user needs.
Advantages:
- Ensures diverse input from different user representatives
- Keeps user representatives focused on their primary role
Disadvantages:
- May cause discontinuity in communication and understanding
- Time and effort required for new representatives to get up to speed
2. Conduct periodic user reviews: Organize scheduled user reviews where the development team presents their work to a broader group of users for feedback. This encourages the team to consider user perspectives and allows user representatives to reconnect with their colleagues' needs.
Advantages:
- Enhances user engagement and input
- Improves alignment between user needs and the software solution
Disadvantages:
- Requires additional time and resources
- May slow down development if feedback leads to significant changes
3. Establish a clear communication plan: Implement a structured communication plan between user representatives and their colleagues, which may include regular meetings, status updates, and a feedback loop. This will help user representatives stay in touch with their user community's needs and relay them to the development team.
Advantages:
- Enhances transparency and collaboration
- Keeps user representatives accountable to their user community
Disadvantages:
- May create additional administrative work
- Potential for miscommunication if not managed effectively
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what is full form of DDL????
Answer:
The Full Form Of DDL is a Data Definition Language
which of the following is not a type of tab stop? left center justified decimal
The type of tab stop that is not included in Microsoft Word is Justified. Option c is correct.
The different types of tab stops available in Microsoft Word are:
Left tab stop - aligns text at the left end of the tab stop.Center tab stop - aligns text at the center of the tab stop.Right tab stop - aligns text at the right end of the tab stop.Decimal tab stop - aligns numbers at the decimal point in a column.Bar tab stop - adds a vertical line that starts at the tab stop.Tab stops are utilized in word processing software like Microsoft Word to enable users to align text at specific points. To view and modify tab stops, select the “View” tab from the ribbon menu and click the “Ruler” checkbox in the “Show” section. The ruler that appears above the document shows the tab stops.
Therefore, c is correct.
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How do you find binary?
Answer:
To convert integer to binary, start with the integer in question and divide it by 2 keeping notice of the quotient and the remainder. Continue dividing the quotient by 2 until you get a quotient of zero. Then just write out the remainders in the reverse order.
Explanation:
state three differences between text data and number data
Answer:
Strings contain alphanumeric characters. Even if the string contains numbers, they are treated as text. Think of the example of ZIP codes. Two of the most widely used numeric data types are integers, which consist of whole numbers, and decimals, which are also called floats or doubles.
Answer:
Explanation:
text data can be a mixture of alpha numeric data (has both letters and numbers). This can be in the form of print or speech
number data is just numbers.
If you accidently looked up a link, and the same link keeps popping up everywhere, how do you stop it? On a phone.
Answer:
u go to your settings and stop notification
Answer:
On your Android phone or tablet, open the Chrome app Chrome · Go to a webpage. · To the right of the address bar, tap More More and then · Tap Site settings.
hy does payments constitute such a large fraction of the FinTech industry? (b) Many FinTech firms have succeeded by providing financial services with superior user interfaces than the software provided by incumbents. Why has this strategy worked so well? (c) What factors would you consider when determining whether an area of FinTech is likely to tend towards uncompetitive market structures, such as monopoly or oligopoly?
(a) lengthy and complex processes for making payments (b) legacy systems and complex interfaces (c) regulatory requirements and substantial initial investment, can limit competition
(a) Payments constitute a significant portion of the FinTech industry due to several factors. First, traditional banking systems often involve lengthy and complex processes for making payments, leading to inefficiencies and higher costs. FinTech firms leverage technology and innovative solutions to streamline payment processes, providing faster, more secure, and convenient payment options to individuals and businesses. Additionally, the rise of e-commerce and digital transactions has increased the demand for digital payment solutions, creating a fertile ground for FinTech companies to cater to this growing market. The ability to offer competitive pricing, improved accessibility, and enhanced user experience has further fueled the growth of FinTech payment solutions.
(b) FinTech firms have succeeded by providing financial services with superior user interfaces compared to incumbents for several reasons. Firstly, traditional financial institutions often have legacy systems and complex interfaces that can be challenging for users to navigate. FinTech companies capitalize on this opportunity by designing user-friendly interfaces that are intuitive, visually appealing, and provide a seamless user experience. By prioritizing simplicity, convenience, and accessibility, FinTech firms attract and retain customers who value efficiency and ease of use. Moreover, FinTech companies leverage technological advancements such as mobile applications and digital platforms, allowing users to access financial services anytime, anywhere, further enhancing the user experience.
(c) Several factors contribute to the likelihood of an area of FinTech tending towards uncompetitive market structures such as monopoly or oligopoly. Firstly, high barriers to entry, including regulatory requirements and substantial initial investment, can limit competition, allowing a few dominant players to establish market control. Additionally, network effects play a significant role, where the value of a FinTech service increases as more users adopt it, creating a competitive advantage for early entrants and making it challenging for new players to gain traction. Moreover, data access and control can also contribute to market concentration, as companies with vast amounts of user data can leverage it to improve their services and create barriers for potential competitors. Lastly, the presence of strong brand recognition and customer loyalty towards established FinTech firms can further solidify their market position, making it difficult for new entrants to gain market share.
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Which approach is ideal for ensuring that a Webpage is maintained and does not appear neglected to users?
A. Using more images
B. Using a GUI HTML editor
C. Using automated link-checking software
D.Using internal hyperlinks in essential pages
Answer:
D
Explanation:
I think putting hyperlink in essential pages is a good idea as it may guide a user
Which of the following is a benefit of display advertising over search advertising?
A
Display advertising is cheaper than search advertising
B
Appearing on relevant websites offering advertising space
C
Ads can appear at the top of search engine results pages
D
Display ads are more likely to be clicked on
Answer:
D.
Explanation:
rotate object while holding the shift key. what does it do?
Answer:
It rotates it 45 degrees in a direction
Match each definition with the term it describes. A(n) ______ provides identification and addressing information for computers and devices on a network. A(n) ________ is a network that covers an area of less than a mile. The Internet is an example of a(n) ______.
Answer:
IP address, LAN, WAN
Explanation:
Answer:
Sentence 1: IP Address
Sentence 2: LAN
Sentence 3: WAN
Explanation:
Edge 2022
Which of the follow efficiencies would be considered unreasonable?
Answer:
Exponential or factorial efficiencies algorithms
Explanation:
In a computer engineering system, the efficiencies that would be considered unreasonable is the "Exponential or factorial efficiencies algorithms"
This is unlike Algorithms with a polynomial efficiency that is considered to have Reasonable Time.
who created a power loom that used an automatic card reader to read punched cards
The power loom that used an automatic card reader to read punched cards was created by Joseph Marie Jacquard.
Joseph Marie Jacquard, a French weaver and inventor, is credited with creating the power loom that utilized an automatic card reader to read punched cards. Jacquard's invention, known as the Jacquard loom, revolutionized the textile industry by automating the process of weaving intricate patterns.
The Jacquard loom incorporated a system of punched cards, where each card represented a specific row of the fabric design. The punched holes on the cards corresponded to different actions to be taken by the loom, such as raising or lowering warp threads. As the loom progressed, the card reader mechanism would read the punched holes on the cards and control the movement of the loom accordingly, allowing for the creation of complex and precise patterns.
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Name two sensors which would be used in a burglar alarm system
1. Passive Infrared Sensor
This sensors type is passive in a way that it doesn't radiate its own energy. Instead, it detects the infrared light radiating from objects. This way, it can detect whenever there's a human or another living being in its field of view.
2. Photoelectric Beams
This is also another type of motion detector, but it doesn't work similarly to the others. For one, it doesn't have a coverage area. It only forms a fence, which triggers the alarm if broken.
It consists of two separate parts that form a sort of a fence made of IR beams. When someone steps into the beams, between the two parts, they trigger the alarm.