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List the requirements needed to design a trigger.
The requirements are:-
Specifying when a trigger is to be implemented.
State the actions to be taken when the trigger implements.
Types of Locks There are two necessary types of locks: Binary lock : This locking mechanism has two states for to a data item: locked or unlocked Multiple-mode loc
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prototype of a distributed information system for a national car part retail outlet chain.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
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Databases and data warehouses both are databases and both contains number of rows and columns of tables containing data. Data warehouse is really different from databases because d
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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