Matthew is employing the research method called participant
observation. This is a type of data collection method where the individual is
likely to collect information about cultures, people or process in a
qualitative research and that the individual is likely to be referred to as the
player in the action.
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To enforce referential integrity, the database can return an error instead of doing the requested action or do the requested action and do the related changes to the related tables
Thus the answer is either a or b.
Explanation:
When the given data base in a table is valid and if it is consistent then it is called as referential integrity and it also refers to the consistency within the relationship. This type of database is much important because it will keep us introducing to the errors in the databases and it also checks if the reference from one table is equal to the other table.
The main function is to prevent the users from entering the wrong and inconsistent data. So in referential integrity the database will return the error instead of doing the required action or it can do the related changes to the related tables.
Answer:Tactical Plan, Operational Plan
Explanation:
A tactical plan is a strategic plan involving tactics and plans to achieve a desired goal or target. For example, if a company wants to be a market leader, then they have to increase their spending on advertising and marketing.
An operational plan is a comprehensive plan used to depict the role of each team or department in a clear context in order to achieve the target .
This plan includes how can one achieve the target, what resources are required to achieve a goal while resource allocation is made by Tactical plan.
