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I need to write a relational algebra query for the following:
Show the item_ID, item description and category description for all items
where the supplier uses "rail" as the delivery_method.
...
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by: jimh |
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I'm not a SQL expert. I want to be able to write a stored procedure
that will return 'people who bought this product also bought this...'.
I have a user table that links to a transaction table...
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by: trippedwire |
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i have entity sets
account(account-number, balance)
branch(branch-name, branch-city, assets)
customer(customer-name, customer-street, customer-city)
loan(loan-number, amount)
and relationship...
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by: Vishy8015 |
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Use Relational Algebra to express the following queries on the schema FLIGHTS (DepartureCity, ArrivalCity). A pair of cities a, b is in an instance of relation FLIGHTS if there is a direct flight...
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by: scorpiomailin |
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Hello Guys...
thanks in advance jst wondering if any1 knows answer to this....
if this is the SQL query
Author(name, hometown, publisher)
Textbook(tname, aname, price)
select A.name, publisher...
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by: salman malik |
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software for relational algebra.
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by: micangello |
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i need ideas on what my final year project can be about
i have studied 2 years of pure math (advanced calculus and algebra, topology, statistics..... )
i then switched ot computer science
now...
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by: aiom |
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following are the given set of relations
:
STUDENT(SSN,Name,Major,Bdate)
COURSE(Course#,CName,Dept)
EnrollCourse#,Quarter,Grade)
BOOK_ADOPTION(Course#,Quarter,Book_ISBN)...
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by: muniba |
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Relational algebric expression for the following:
Draw two relational algebra query trees for the following query and show that one query tree is more eficient than the other.
"Give the number...
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by: Metallicat |
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I have been posed and attempted to answer several questions but I do not seem to be getting anywhere. I have emailed my tutor a week ago and he has not responded, If anyone can take a look and help...
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by: DolphinDB |
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Tired of spending countless mintues downsampling your data? Look no further!
In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
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by: ryjfgjl |
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ExcelToDatabase: batch import excel into database automatically...
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by: isladogs |
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The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM).
In this month's session, we are pleased to welcome back...
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by: isladogs |
last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM).
In this month's session, we are pleased to welcome back...
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by: jfyes |
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As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
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by: ArrayDB |
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The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
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by: CloudSolutions |
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Introduction:
For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
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by: af34tf |
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Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
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by: Faith0G |
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I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
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