This week was a little harder comparing to last; well it is expected because we are getting more into how to create a more dependable database. The topics for this week were “The problem of redundancy, Decompositions, Functional Dependencies and normal forms. We learned how to recognize and avoid the problem redundancy in database along with how to convert database schema into first, second, third normal forms. A lot of material to read, I was glad about the complementing videos provided since they that are really easy to follow, providing great help to clarify the subject. The discussion forum good quality as usual, everyone explaining the topics and providing examples and tables to make it even easier to understand. Always looking forward …show more content…
This week, good feelings, everything that I was doing was making sense so I am only hoping that pretty soon everything will get easier. Well, that will be I the perfect world so I better keep on studying and do my best each week. 5) Describe what you learned. I learned how to decompose a relation and what characteristics they keep acquiring base to the point of making everything table simple to understand but always keeping the integrity and proper function in the relation. 6) What happened that felt particularly challenging? Why was it challenging to me? The challenging part was actually trying to understand what will be the best way to break a relation down into multiple relations without jeopardizing the integrity of the data at the same time. As I mention before it is not hard to do it but you really have to know how to do it. 7) What skills and knowledge do I recognize that I am gaining? Attention to detail, dealing with databases means not always getting the expected results. Some times you have to modify tables multiple times before you get the correct outputs so attention to detail is a main factor when you are dealing specially with large databases. 8) What am I realizing about myself as a
Stress, we all have it in our lives and for some of us it affects us in ways we do not even realise it. This causes me great discomfort as this leads me to not even have the ability to begin my tasks as I am concerned about how I will be able to complete it on time. Once I am able to resolve this predicament I will be confident enough about accomplishing all my tasks and concluding these tasks to my best effort.
The latest action on this bill was made by House Education and the Workforce on April 29, 2015. The type of action was Committee Consideration.
Based on Crystal's most recent data and previous evaluations, Crystal will benefit from Special Education services and accommodations to show growth and interact with grade and age-appropriate texts and reading material. She will need accommodations such as extended
* Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.
1. Weather is the current state of the atmosphere. Climate is the long-term weather conditions for an area or region. Some examples of weather will be tornadoes, hurricanes and flooding. When it comes to climate common examples will be tropical, polar, marine, and Mediterranean. The difference between weather and climate is that climate is a long-term weather. We can say that climate is like the “official” weather of the region or country. For example, in Dominican Republic, our climate is tropical. On the other hand, weather is the current situation on the region or country.
When I first ran the coding, the program was not working. Using the debugger, I found out that the program was not reading the file. By looking into the variables, I noticed that the some data were missing. The following is the list of my correction to fix the coding.
1. What 2 things have worked well for your learning in this course – you can include anything that you feel helped you to learn or to understand the material. Give specific details and examples. If you would like to include more than two that would be just fine.
Step 1: The volume of the quarter-sphered tank rounds up to 478,676. You use the condition to find the volume.
One of the assignment I chose for math was a test. I chose this assignment because one of the hardest test †hey I have ever done. Even though received a C I am still proud of it because for me it was a challenge. The assignment was about “Linear Equations, Getting m & b and Scatter Plots. The problems that are in the test is for number seven which is about how the given data represents a linear function and to complete the table of solutions and write equation. That is part of the test questions that I had for this test which at first did not know what to at first so it came back to my head and got the answer correct. The point of this assignment was to get it done at the time it was giving in which I did not completed. Even though
For the remaining parameters, we needed a tree that would not lose its readability and still provide good results; therefore, we chose a maximum depth of 7, since increasing it did not improve the results significantly, and would have made it more difficult to extract the rules and observe the results. Regarding the maximum number of bins, the default value is 32. As our variables were all continuous we could choose a lower number of bins and the one that yielded best results was
As for information gained from the course study that I can find useful the list is pretty big and I hope to not leave anything out but feel that might be almost impossible to do. I remember in the first week your instruction laid a pretty solid base for what to expect in this class and how the information that I was going to learn would be useful for the rest of
Normalization can be used as a methodology for achieving an organized and logically designed database free of overused excessive data. The normalization process includes three integral fundamental steps which are the first normal form, second normal form, and third normal form. Logically organizing data in a manner that reduces or eradicates excessive equivalent data allows for accurate and concise data tracking within a database, and normalization can help achieve this.
The Head First Labs and O Reilly provide guides on databases. With their help the changes asked to be made in website without crashing it was an easy task. They only provided the right resources used for
In DBMS, by using the normalization concepts on tables, we design the database in such a way that the data is not duplicated.
Dr. E.F. Codd the “father” of the relational database model, created a list of rules or yardstick needed to measure any set of OLAP systems. Users should priorities these rules according to their needs to match their business requirements.