MySQL queries
Bajet $30-250 USD
In this project you will create four MySQL queries. The schema is below, I have attached an EER, and a database dump including sample data will be provided on project acceptance.
We have a database that stores records of earnings and expenses for various machines. For earnings, half of the machines show their earnings as a single amount, e.g. $1,250.25. The other half show their earnings as two values, CoinsLeft and CoinsRight. If CoinsLeft is 1205 and CoinsRight is 962 the dollar amounts would be $301.25 and $240.50, (1205 / 4) and (962 / 4) for a total of $541.75.
Half of the time, amounts recorded are the cumulative total amount earned over the lifetime of the machine. The other half of the time, the amount is just the amount shown, and in these cases the BOOL field ResetEarnings is TRUE.
Queries needed for this project:
1) For a specified date range, show the sum of TotalEarnings OR the total of (CoinsLeft and CoinsRight) for each idMachine. Group results by Location.
If a given idMachine's CountsCoins is TRUE, calculate the total of (CoinsLeft + CoinsRight) / 4 ), otherwise calculate TotalEarnings.
In all cases, you must subtract the last entry's amount from the current entry, EXCEPT the first entry which is not counted in the sum.
However, if a given TotalEarnings row has a TRUE ResetEarnings field, do not subtract the prior entry's earnings and instead add the full amount of TotalEarnings or (CoinsLeft + CoinsRight / 4) for that entry.
Example 1:
idMachine, date, TotalEarnings, ResetEarnings
1, 1/1/2018, 100, 0
1, 1/7/2018, 150, 0
1, 1/14/2018, 250, 0
1, 1/21/2018, 20, 1
1, 1/28/2018, 120, 0
For date range 1/1/2018 - 1/7/2018 the total for idMachine 1 would be: (150 - 100) = $50
For date range 1/1/2018 - 1/14/2018 the total for idMachine 1 would be: (150 - 100) + (250 - 150) = $150
For date range 1/1/2018 - 1/21/2018 the total for idMachine 1 would be: (150 - 100) + (250 - 150) + (20 - 0) = $170
For date range 1/1/2018 - 1/28/2018 the total for idMachine 1 would be: (150 - 100) + (250 - 150) + (20 - 0) + (120 - 20) = $270
Example 2:
idMachine, date, ResetEarnings, CountsCoins, CoinsLeft, CoinsRight
2, 1/1/2018, 0, 1, 4, 8
2, 1/7/2018, 0, 1, 16, 21
2, 1/14/2018, 1, 1, 8, 16
2, 1/21/2018, 0, 1, 10, 20
For date range 1/1/2018 - 1/7/2018 the total for idMachine 2 would be: (16 - 4) + (21 - 8) / 4 = $6.25
For date range 1/1/2018 - 1/14/2018 the total for idMachine 2 would be: (6.25) + ((8 + 16) / 4 )) = $12.25
For date range 1/1/2018 - 1/21/2018 the total for idMachine 2 would be: ($12.25) + (10 - 8) + ((20 - 16) / 4 ) = $13.75
2) For a specific date range, show the sum of Expenses per idMachine, grouped by Location.
3) For a specific date range, show the /net/ (e.g. the result of query 1 minus the result of query 2) per idMachine, grouped by location, WITH a net sum of the machines in each location.
4) For a specific date range, show the number of plays per idMachine, grouped by location. Similar to TotalEarnings, you must subtract the number of plays from the previous entry, and total plays can also be reset when the ResetPlays field is TRUE.
Schema:
MACHINE
Machine ID
Machine name, text
Date purchased
Cost of purchase, integer
CountsCoins, bool
Serial number, text
LOCATION
idLocation
Name
EXPENSE
idExpense
Expense, text
Date
TotalExpense, float
[url removed, login to view]
[url removed, login to view]
TOTALPLAYS
idTotalplays
Totalplays, integer
Date
[url removed, login to view]
[url removed, login to view]
TOTALEARNINGS
idTotalearnings
ResetEarnings, bool
Coins left, integer
Coins right, integer
TotalEarnings, float
Date
[url removed, login to view]
[url removed, login to view]
Dianugerahkan kepada:
I am an experience database adminstration developer. I read your situation and I can help you in this. Please message me for further discussion. I will charge the minimum as possible,
48 pekerja bebas membida secara purata $141 untuk pekerjaan ini
Hi , I can start immediately to write mySQL queries as per the requirement. I am a highly motivated professional expert in programming and design. I will go with you until the queries are 100% accurate and also you can Lagi
Hello sir I hope you are doing well. After reading your offer, this looks like a perfect fit for my skill sets so May I discuss with you for further details about this project? I'm a web developer with over 6 Lagi
I am mysql dba having more then 10 yrs of exp............i am expert in performance tunning,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Hi there, I have read the details and checked attached screenshot of UML. I have strong expertise in plsql, pivot tables, dynamic queries, normalization, umls, triggers, procedures and more. Have a look at my profile Lagi
Hello Sir, hope you are fine, I am interested in your work "MySQL queries". I am ready to write quires from given ERD. i need MYSQL recording for testing the queries in live database ?
Hi, A SQL Server, SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS) and SQL Server Analysis Services (SSAS) expert here. Please feel free to discuss the project with me so that I can wrap Lagi
Hi there! Allow me to complete this task. Please ping me so we can discuss more and I can start off my work right away :)
Hi, I'm a database adminstrator expert , I have read your job description and I'm ready to create those queries Please feel free to contact me Regards
Good afternoon, my name is Franco, i am web developer whit strong knowledge of sql language, so, we would be happy to collaborate with you so that your project be done in the best way. We are available for any quest Lagi
Hi, I have read your job description. I can definitely do it. I can give you fully responsive website design. I have done many projects using Codeigniter, php, wordpress etc. I can give you the exact what you want.
We are highly experienced Post Graduate Engineers, Doctors, IT, ITES, Software, Infrastructure Professionals, Web Designers and IT Architects. We can redo, improve, and publish any engineering, scientific MATLAB, SI Lagi
Hi. If you give me a chance to do your project I will do your project perfectly. Even if you choose another freelancer, I'm okay and hope your project going well. Please chatting with me. Best Regard.
Hi. I am a developer with over 8 years experience. Please have a look on my profile. I hope a long time relationship so I will try my best. I am ready to start. Please hire me. best regards
