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
<span>To carry computer data over the long haul, wan need to have a </span>POP (point of presence) <span>in multiple towns and cities. It is a</span><span>n artificial demarcation point OR interface point between communicating entities</span>
Answer:
it is a complete routine of life without it we cannot do time management
Explanation:
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There a 52 weeks in a year
