.. (לתיקייה המכילה) | ||
Can I include only final answers in my HW submission? | |
Generally, no. in questions 1 and 2 I expect to see at least which formulas you used, and including explanations will only benefit your grade. In question 3 (RA) you can include less details, and submit your result, but again, whether or not your answer is readable will help with the check. Finally in Q4 - Map Reduce - please follow the instructions regarding the expected answers. |
In Q1c - is an employee with greater seniority (ותק) should come from within the same department or from any department? | |
from any department |
In Q2a : did you mean 128 bytes or 128 kilo-bytes? | |
128 bytes |
In RA, may I use max\min conditions in the "select" operator (sigma)? | |
No, "select" operator is used on an entry, and not between multiple entries such as entire columns (fields) of a relation |
in Q3 - in 'department' table, is 'did' a unique identifier for a department? | |
yes |
In Q3.b. may I use a COUNT function that returns the number of entries in a relation? | |
no, RA as taught in the course doesn't have this Operator. You don't need it to solve this question |
In Q4a, should the query take into account paths using one or more connections between a source and a destination? | |
No, direct paths only (use only entries in 'Flights') |
In Q4c - may i use operation such as JOIN between "flights" and "connections"? | |
No RA helper queries are allowed, only Map and Reduce functions are to be defined and used |