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Consider the following table as well as the Dept1_Parts and Dept2_Parts relations shown in
the exhibit:
Which of the following relational algebraic expressions would result in the given table?
Suggested Answer: A
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16 comments · newest first
KA
Karina
11 months ago
Are we sure any of these options are correct?
BE
Berry
11 months ago
Definitely going with A, it just makes sense!
SE
Sena
12 months ago
Wait, how did they get those results in Option C?
ED
Edward
12 months ago
I think Option D is the right choice.
CA
Carin
1 year ago
Option B matches the table perfectly!
EM
Emerson
1 year ago
I'm a bit confused about the differences between the options. I hope I can remember the relational algebra rules during the exam!
LA
Larae
1 year ago
I feel like option C could be the right choice, but I can't recall the exact steps to confirm it.
TA
Tasia
1 year ago
I remember practicing a similar question where we had to combine two tables. I think it was about inner joins, but this one looks different.
SH
Shelton
1 year ago
I think we might need to use a join operation here, but I'm not entirely sure which type would be best for this scenario.
MA
Mari
1 year ago
I'm a bit unsure about how to approach this. The multiple tables and the expected output format are throwing me off. I'll need to review the relational algebra concepts and see if I can piece together the right solution.
CH
Chantell
1 year ago
This seems straightforward enough. I'll just need to identify the key operations like union, intersection, or difference to apply to the given tables. I'm feeling pretty confident about this one.
FA
Fatima
1 year ago
Okay, I think I've got a strategy here. I'll start by looking at the Dept1_Parts and Dept2_Parts tables and see how I can combine them to get the desired result. Hopefully, one of the options will match what I come up with.
MI
Mila
1 year ago
Hmm, I'm a bit confused by the different table names and how they might relate to the desired output. I'll need to think through the problem step-by-step to figure out the right approach.
ET
Ettie
1 year ago
This looks like a tricky one. I'll need to carefully analyze the given tables and the expected output to determine the appropriate relational algebra expression.
TI
Timothy
1 year ago
Okay, let me see. Work performance data is all about tracking how the project is progressing, so I'm guessing it would be used in the Determine Budget or Control Costs processes. I'll have to review my notes to be sure.
CE
Celia
1 year ago
I remember something about correlation, but I'm not sure if it means causation. I think option C sounds right?