A relation with only simple (non-compound) keys will already be in 2NF if it also in 1NF.
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Which of the following happens when write operation fails, r…
Which of the following happens when write operation fails, requires undo:
Which of the following SQL clauses are required in any SQL S…
Which of the following SQL clauses are required in any SQL SELECT query and cannot be omitted?
What’s wrong with this sample SQL Query? SELECT COUNT(Custom…
What’s wrong with this sample SQL Query? SELECT COUNT(CustomerID), StateFROM CustomersWHERE CustomerType=’SCorp’GROUP BY StateORDER BY COUNT(CustomerID) DESC;
___________ anomaly takes place when changing data in a row…
___________ anomaly takes place when changing data in a row forces changes to other rows (because of duplication) or results in invalid data.
Which of the following happens when a summary process runs a…
Which of the following happens when a summary process runs at the same time as an update:
NULL value has two possible meanings: either True or False
NULL value has two possible meanings: either True or False
Which normal form adds the requirement that every non-key at…
Which normal form adds the requirement that every non-key attribute must be fully dependent on the key?
Ensuring that that processes that run simultaneously behave…
Ensuring that that processes that run simultaneously behave in an appropriate way is known as:
The best way to contact Dr. Black is via…
The best way to contact Dr. Black is via…