Answer and Explanation:
a) Key for the relation courses is HS.
b) FD's are already minimal basis, as no attributes can be removed from the left side, right side is having only single attributes and none of the FD can be removed as given in the question.
c) By using the 3NF synthesis algorithm, the final set of relations obtained will be CT, HRC, HTR, HSR, CSG (FD'S are already proved to be minimal basis in part (b)). All the relations are in BCNF.
RFID stands for <span>Radio-Frequency Identification. RFID is the use of radio waves to reach and capture data. The RFID chip can hold about 2,000 bytes of info.
</span><span>The RFID device serves the same purpose as a bar code or a magnetic strip on the back of a credit card or ATM card; it provides a unique identifier for that object. And, just as a bar code or magnetic strip must be scanned to get the information, the RFID device must be scanned to retrieve the identifying information.</span>
Cc stands for " carbon copy " and Bcc stands for " Blind carbon copy ". The difference between Cc and Bcc is that carbon copy (CC) recipients are visible to all other recipients whereas those who are BCCed are not visible to anyone.
Answer:
Formula field calculations
Explanation:
We can use debug logs to track events in our company, these events are generated if active users have trace indicators.
A debug log can register information about database operations, system processes and errors, in addition, we can see Resources used by Apex, Workflow Rules, Assignment Rule, HTTP calls, and Apex errors, validation rules. The only one we cannot see is Formula field calculations.
If (sales >= 10000)
commission = 0.2;
