Answer:
The database can detect only system-defined events.
Explanation:
A trigger is like a stored procedure that Oracle Database invokes automatically whenever a specified event occurs.trigger is like a stored procedure that Oracle Database invokes automatically whenever a specified event occurs.
Both triggers and constraints can constrain data input, but they differ significantly.
A constraint applies to both existing and new data. For example, if a database column has a NOT NULL constraint, then its existing data is NOT NULL and no DML statement can violate the NOT NULL constraint.
A trigger applies only to new data. For example, a trigger can prevent a DML statement from inserting a NULL value into a database column, but the column might contain NULL values that were inserted into the column before the trigger was defined or while the trigger was disabled
Answer:A
Explanation:Conceptual notetaking is the act of writing down information in the order it is given.
The answer is B (Closest to; progressively larger dimensions outward from
Answer:B) Wide-Area Network (WAN)
Explanation: WAN(Wide area network)is the network which constitutes a large geographical region.This network consist of the small network unit as well as large network connections.This network does not have the geographic dispersion of the components of networks.
WAN works in geographic region for the dispersion between any two locations. Other options are incorrect because they connect the network components geographically. Thus the correct option is option(B).
Answer:
Using names in formulas makes it clearer to see what the function is.
Explanation:
Just answered this in my online course.
