what are the four ansi transaction isolation levels? what type of reads does each level allow?
Answers
Each ANSI transaction isolation level provides a different level of consistency and concurrency control, and each level allows different types of reads. It is important to choose the appropriate isolation level based on the requirements of the application to ensure transaction consistency and avoid concurrency issues.
The four ANSI transaction isolation levels are read uncommitted, read committed, repeatable read, and serializable. Each isolation level provides a different level of transaction consistency and concurrency control.
The read uncommitted isolation level allows transactions to read data that has been modified by other transactions but not yet committed. This level allows dirty reads, meaning that transactions can read uncommitted data that may be rolled back later.
The read committed isolation level ensures that transactions can only read data that has been committed by other transactions. This level does not allow dirty reads but allows non-repeatable reads, meaning that a transaction may see different values for the same record if it is updated by another transaction during the transaction.
The repeatable read isolation level ensures that a transaction can read data consistently during the transaction. This level prohibits dirty reads and non-repeatable reads, but allows phantom reads, meaning that new records may appear during the transaction if other transactions have inserted new data.
The serializable isolation level provides the highest level of consistency and prohibits dirty reads, non-repeatable reads, and phantom reads. This level locks all records accessed by the transaction until the transaction is completed, ensuring that no other transaction can modify the data during the transaction.
In summary, each ANSI transaction isolation level provides a different level of consistency and concurrency control, and each level allows different types of reads. It is important to choose the appropriate isolation level based on the requirements of the application to ensure transaction consistency and avoid concurrency issues.
Learn more about ANSI here:
https://brainly.com/question/30229875
#SPJ11
Related Questions
how do i scan or check for computer virus?
Answers
Answer:
what type of computer
Explanation:
800,000= 180,000(P/AD, i,5) + 75,000(P/F,i,5) I want to find interest rate (i)
Would you let me know how to calculate this using Excel?
Answers
here is how to compute the above using Excel.
How to calculate the aboveOpen a new Excel spreadsheet and enter the following values in the cells:
Cell A1: 800,000 (Total amount)
Cell A2: 180,000 (Payment at the end of each period)
Cell A3: 75,000 (Payment at the beginning of each period)
Cell A4: 5 (Number of periods)
In cell A5, enter an initial guess for the interest rate (i). For example, you can start with 0.1 (10%).
In cell B1, enter the formula =A2*PMT(A5,A4,0) to calculate the present value of the periodic payments at the end of each period.
In cell B2, enter the formula =A3*PMT(A5,A4-1,0) to calculate the present value of the periodic payments at the beginning of each period.
In cell B3, enter the formula =A1 - B1 - B2 to calculate the remaining balance.
In cell B4, enter the formula =RATE(A4, B2, B1) to calculate the interest rate.
Learn more about Excel Formula at:
https://brainly.com/question/29280920
#SPJ1
When dealing with perspective, _____ lines are used or implied.
Answers
Answer:
I'm pretty sure the answer is vanishing lines.
Explanation:
Why might an emergency team leader dismiss a proposed emergency plan
that is time consuming and outside the scope of what the facility can do?
Answers
The plan may be impractical or inefficient given limited resources and time constraints.
Why is it important for businesses to conduct market research before launching a new product or service?An emergency team leader might dismiss a proposed emergency plan that is time-consuming and outside the scope of what the facility can do for several reasons:
Feasibility: The plan may not be practical or feasible given the available resources, infrastructure, and capabilities of the facility. It might require specialized equipment, personnel, or expertise that the facility does not possess.Efficiency: Time is crucial during emergency situations, and a time-consuming plan may hinder the team's ability to respond promptly and effectively. The team leader needs to prioritize plans that can be executed swiftly and efficiently to minimize the impact of the emergency.Resource Allocation: If the proposed plan demands excessive resources, such as financial investments, staffing, or materials, it may strain the facility's capacity to address other essential aspects of the emergency response. The team leader must consider the optimal allocation of resources to maximize the overall response effort.Compatibility: The proposed plan may not align with the specific needs and requirements of the facility or the nature of the emergency. It is essential to ensure that the plan is tailored to address the unique challenges and circumstances of the facility and the emergency at hand.Safety and Risk Assessment: The team leader must consider the potential risks and hazards associated with the proposed plan. If the plan poses unnecessary risks to the team members, the facility, or the affected individuals, it may not be deemed appropriate or advisable.In summary, an emergency team leader prioritizes plans that are feasible, efficient, aligned with available resources, compatible with the facility's needs, and considerate of safety and risk factors.
Dismissing a time-consuming plan that falls outside the facility's scope allows the team to focus on implementing strategies that are practical and effective in managing the emergency situation.
Learn more about limited resources
brainly.com/question/32129164
#SPJ11
The number ____ is the standard dots per inch used for blogs, social media, webpages, and emails.
That question is for my photography class.
Answers
Answer:
72 dpi
Explanation:
72 DPI is standard for social media posts and others. It is not 300 DPI which is standard for print.
The standard dots per inch (DPI) used for blogs, social media, webpages, and emails can vary depending on the specific platform and device.
A common standard for these digital mediums is 72 DPI.
DPI refers to the resolution or sharpness of an image on a digital display. A higher DPI means more dots or pixels per inch, resulting in a clearer and more detailed image. On the other hand, a lower DPI means fewer dots per inch, resulting in a less sharp image.
For digital content displayed on screens, a DPI of 72 is often used because it strikes a balance between image quality and file size. This resolution is considered sufficient for viewing images online without causing excessive loading times or using excessive bandwidth.
It's important to note that when printing physical copies, a higher DPI is generally recommended to achieve better print quality. In print media, resolutions like 300 DPI are commonly used to ensure sharp and detailed prints.
Know more about dots per inch,
https://brainly.com/question/32108345
#SPJ3
the media could not be loaded, either because the server or network failed or because the format is not supported. how to make it work reddit
Answers
Restarting the router, reconnecting to the internet, or calling the ISP for serious connectivity server issues will solve the issue when the internet is to blame.
When format is not supported, what does that mean?One or more of the following factors could be the cause of this problem: There are missing or broken files for Windows Media Player. You are attempting to play a media file that was not created with a file type that Windows Media Player can read.
Media error: What does that mean?A message that offers detailed diagnostics about what went wrong is included in a MediaError object that provides a basic description of the error using a numeric code that classifies the type of error.
To know more about server visit:-
https://brainly.com/question/7007432
#SPJ4
consider the switch shown below. suppose that all packets have the same fixed length and it requires one time slot to transfer a packet from an input port to an output port for all switching fabric. assume the switch fabric is a crossbar (more details in chapter 4.2 in the book) so that at most one packet can be transferred to a given output port in a time slot, but different output ports can receive packets from different input ports in a single time slot. what is the minimal number of time slots needed to transfer the packets shown from input ports to their output ports. instead, if the switching fabric is a bus, what is the minimum number of time slots required to transfer all the packets. explain your answer.
Answers
In a crossbar switch, two time slots are the absolute minimum needed for packet transfers, but four slots are needed in a bus. This is so because a bus can only transfer one packet at a time, whereas a crossbar can transfer numerous packets concurrently.
Which of these three switching fabric types are used in routers?Switching through memory, switching through a bus, and switching through a network of connections are the three methods of switching.
What is the capacity of a switching fabric?Switch Fabric Capacity: This term often refers to the fastest rate at which hardware can transfer data between cards or ports. Since the vendors count full duplex, the Switch Fabric Capacity is typically double what it actually is and is expressed in bits per second (bps).
To know more about time slots visit:
https://brainly.com/question/30000870
#SPJ1
What is the value of numC when this program is executed?
numA = 7
numB = 5
if numA== 5:
numC = 10
elif numA> numB:
numC = 20
else:
numC = 30
Answers
Answer: numC = 30
Explanation: got it right
When this program is run, the values of numA and numB are 7 and 5, respectively. The if statement must be executed if numA equals 2, which it does not. To execute the elif statement, numA must be greater than numB, which it is not. As a result of the else statement, numC = 30.
What is else if statement?Use the if statement to tell a block of code to run only if a certain condition is met. If the same condition is true, else is used to specify that a different block of code should be executed. If the first condition is false, use else if to define a new test condition. Otherwise if, as the name suggests, combines the words if and else. It is similar to else in that it extends an if statement to execute a separate command if the original if expression returns false.An if else statement in programming will execute a different set of statements depending on whether an expression is true or false.To learn more about else if, refer to:
brainly.com/question/18736215
#SPJ1
What are the 5 functions of a CPU? ;-;
Answers
Decode
Execute
Arithmetic logic unit
Control unit
Decode.
•After fetching information CPU will determine what to do with that data next, this step is the decode step. ...
•Execute. ...
•Arithmetic Logic Unit (ALU) ...
•Control Unit (CU)
Mike decides to humiliate a former friend by posting embarrassing photos on social media Which ethical standard did he violate?
Answers
Answer:
The answer is "Human dignity "
Explanation:
It is the basic human nature, in which it is the recognition of the importance of humans, and it is inherent, and also that they deserve respect for just being humans, and the wrong choice can be defined as follows:
Property rights are the wrong choice because it is used to determine the use and possession of a resource or economic good. Confidentiality is also a wrong choice because it is a detail that provides verbally or in writing. The term civility also was wrong because it relates to politeness.the report wizard allows detail records to be sorted by up to four fields. ____________________
Answers
The report wizard is a powerful tool that enables users to create custom reports with ease. One of the key features of the report wizard is its ability to sort detail records by up to four fields. This means that users can arrange data in their reports based on multiple criteria, making it easier to identify patterns and trends.
Sorting by multiple fields is particularly useful when dealing with large amounts of data, as it allows users to quickly locate specific records based on a combination of factors. For example, a sales report could be sorted by date, salesperson, product, and region, making it easy to see which products are selling well in which regions, and which salespeople are performing best.
In addition to sorting, the report wizard also allows users to group data, apply filters, and customize formatting. All of these features combine to create reports that are both informative and visually appealing, making it easier for users to make data-driven decisions. Overall, the report wizard is an essential tool for anyone who needs to work with data on a regular basis, and its ability to sort detail records by up to four fields is just one of the many benefits it offers.
Know more about report wizard here:
https://brainly.com/question/16157604
#SPJ11
write a program that asks length,breadth and height of a room and calculate its volume
Answers
Answer:
cls
Input"enter length";l
Input"enter breadth";b
Input"enter height";h
v=l*b*h
print"the volume is";v
end
Explanation:
hope you got it
An accountant initially records adjusting entries in a(n) _____.
A. revenue record
B. ledger
C. expense record
D. Journal
Answers
Adjusting entries are changes to journal entries you've already recorded.
Answer:
Ledger
Explanation:
Believe me it's not a journal
What is the operating system written to, and what does nonvolatile mean?
Answers
Answer:
Non-volatile memory (NVM) is a type of memory that retains stored data after the power is turned off. Unlike volatile memory, it does not require an electric charge to maintain the storage state. Only reading and writing data to non-volatile memory requires power.
The collaborative team responsible for creating a film is in the process of creating advertisements for it and of figuring out how to generate excitement about the film. Which of the five phases of filmmaking are they most likely in?
1 distribution
2 pre-production
3 production
4 post-production
Answers
Answer:
1. distribution
Explanation:
Filmmaking can be defined as the art or process of directing and producing a movie for viewing in cinemas or television. The process of making a movie comprises of five (5) distinct phases and these are;
1. Development.
2. Pre-production.
3. Production.
4. Post-production.
5. Distribution.
In this scenario, the collaborative team responsible for creating a film is in the process of creating advertisements for it and of figuring out how to generate excitement about the film.
Hence, they are likely in the distribution phase of the five phases of filmmaking.
Distribution refers to the last phase of filmmaking and it is the stage where the collaborative team considers a return on investment by creating advertisements in order to have a wider outreach or audience.
Answer:
a: distribution
Explanation:
edg2021
Distribution si where the movie gets distributed and promoted
What is the name of the multidimensional data structure that data warehouses and data marts use to analyze data that have common characteristics in more than two dimensions?.
Answers
Massive amounts of data can be sourced from a data warehouse, data mart, or any other unified, central data repository utilizing OLAP (online analytical processing) software.
Multidimensional databases (MDBs), a specific form of database, are designed for use with OLAP and data warehousing applications. The input for building MDBs is frequently taken from existing relational databases.
Data warehousing and OLAP (online analytical processing) both use multi-dimensional databases. Users are shown data in a variety of dimensions using it. It represents data using cubes.
Data cubes enable modeling and multiple perspectives on the data. The data warehouse's foundation is crucial for multidimensional data analysis.
To know more about data warehouse click here:
https://brainly.com/question/14615286
#SPJ4
Star schemas are primarily utilized in data warehouses and data marts for BI and analytics, among other applications, as they are optimized for querying big data sets.
A star schema should be carefully created by organizations. Avoid combining fact and dimension data; each table should only include one of them. A database type called a multidimensional database (MDB) is tailored for usage with data warehousing and online analytical processing (OLAP) applications. Existing relational databases are routinely used as input for creating MDBs. The comparison-based data structures used in multidimensional data sets include k-d trees, quadtrees, and range trees. Multidimensional trees and weighted trees have a connection. The dimensions of the data now accessible to a user are represented by a multidimensional database using the idea of a data cube (also known as a hypercube).
Learn more about multidimensional here-
https://brainly.com/question/13564188
#SPJ4
How does a cell phone change the
incoming signals from a caller into sound that
you can hear
Answers
Answer:
they send electrical signals to the buzzer. The buzzer changes those electrical signals into sound. You hear the buzzer sound and know that someone is calling you.
Explanation:
Answer: Cell phone or any electric device you can say changes the electric signal to radio waves at transmitting end which is converted back to electric signal and perceived as sound waves at receiving end
Explanation:
Mention five(5) businesses that needs computer to apperate.
Answers
Answer:
1. Accounting
2. software developing
3. Website designing
4. Online transaction
5. Advertising
Suppose you want to find pages that contain the word German but not the word Shepherd. Which search would achieve? German OR Shepherd "German Shepherd" German -Shepherd "German" + "Shepherd"
Answers
Answer:
The correct answer is C) "German -Shepherd"
Explanation:
Computerized have evolved to allow for the combination or contrasting or various words.
This is made possible using Boolean Logical Operators such as AND, OR and NOT. Using any of the terms above translates to the presence of a search strategy.
In some search engines, the symbol "+" symbol is used instead of the operator "AND". In other cases, the symbol "-" is used instead of "NOT".
The effect achieved is that "German -Shepherd" excludes the word "Shepherd" from the results.
Cheers!
Answer:
C
Explanation:
What computer would I need to set up my oculus quest 2 aka make my oculus quest 2 link to a computer?
Answers
Answer:
Any computer would do as long as it isn't slow and has a good fps to render the games you plan to connect with. Make sure you have the correct cable though.
Which of these is a way to portray motion in a painting?
use of primary colors
use of realism
use of space
use of angles
hurry !!!
Answers
The answer is use of angles
Which best defines what a script tag does?
Answers
Answer:
The answer to your question would be C , A tag used to write programming scripts.
Explanation:
The element either contains scripting statements, or it points to an external script file through the src attribute. Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content. Hope this helps you! </p><p></p>
Some studies show that 17% of American students don’t have access to a computer at home, and 18% of American students don’t have internet access. This is sometimes referred to as the “homework gap.” How do you think the homework gap will impact those students and ultimately the world?
Answers
The homework gap is likely to translate to lower literacy levels among those that are disadvantaged.
What is the homework gap?The homework gap refers to the difficulties pupils have doing schoolwork when they do not have access to the internet at home, as opposed to those who do.
Homework is the time students spend outside of the classroom doing assigned assignments to practice, reinforce, or apply newly learned skills and information, as well as to master the abilities required for independent study.
Learn more about homework at:
https://brainly.com/question/29612162
#SPJ1
8 9. McWhorter argues that being able to understand in textspeak has many of the same benefits as being able to speak two languages. Can this same argument be applied to emojis? Why or why not?
NEED HELP ASAP WILL GIVE BRAINIST TO BEST AWNSER
Answers
Answer:
yes because i could use ️ to say im eating a chicken leg and or talking with my mouth full and got slapped so yes i believe so
Explanation:
Answer: Yes because if you speak in "emoji" you technically can talk in any language you want because whoever you are sending it to could knows what you're implying by them
Explanation:
A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?
- Telnet
- AUX
- SSH
- Console
Answers
In order to make the mentioned contents private, the access method that should be chosen is SSH. Therefore, option 'C' holds the correct answer.
Secure Shell or SSH is an authentication method for secure remote access over a network. The SSH allows keeping the session contents and other data such as user login information private.
According to the given situation, where a network administrator wants to keep the data such as the user ID, password, and other session contents private when deploying a remote CLI connectivity with a switch to manage it. The most suitable access method should be 'SSH'.
You can learn more about SSH at
https://brainly.com/question/28269727
#SPJ4
Tina reported a safety hazard at her workplace to OSHA. Representatives from OSHA came to her work and inspected the issue, then gave her employer a citation. The day after Tina's employer received the citation, Tina was given new jobs which were menial and difficult. Which of Tina's rights under OSHA was violated in this situation?
A) Freedom from retaliation for exercising safety and health rights
B) Knowledge of hazardous workplace conditions
C) Obtaining training as provided in the OSHA standards
D) Access to hazard exposure and medical records
Answers
Answer:A freedom from retaliation for exercising safety and health rights
Explanation:
(1) describe how you generally use your cellphone on a daily basis (including with whom do you communicate for what purpose with what frequency); (2) read the Supplementary Reading (click here: Does the Internet Make You More or Less Connected?), and discuss how YOUR cellphone use make YOU more or less connected.
Answers
Brainly wasn't letting me answer, so here's an attachment of the answer
the idea of programming by modeling real-world things into computer code is called _____________.
Answers
The correct answer is The idea of programming by modeling real-world things into computer code is called "object-oriented programming" (OOP).
This programming paradigm is based on the concept of "objects," which represent real-world entities and their properties and behaviors. In OOP, an object is an instance of a class, which defines the properties and behaviors of the object. Properties are the characteristics of the object, such as its name, color, size, and shape. Behaviors are the actions that the object can perform, such as moving, changing color, and making sounds. OOP allows developers to organize their code into reusable and modular components, which can be easily modified and extended. It also promotes encapsulation, which means that the internal workings of an object are hidden from other objects, improving the security and maintainability of the code. Overall, OOP is a powerful programming paradigm that enables developers to model complex real-world systems and applications in a clear, structured, and efficient way.
To learn more about oriented programming click on the link below:
brainly.com/question/11023419
#SPJ4
These 2 questions PLEASEEE (:
Answers
Answer:
on the first one pixels on the second i think it is feathering
I Need help with this ASAP
Answers
Answer:It´s B. The code reults in an error
Explanation: