In the case above, The asterisk helps database or tell it to select all data that meets the criteria as stated in the query.
<h3>What does asterisk (*) mean in SQL?</h3>
The term means all columns. Note that The asterisk or star symbol ( * ) is a term that implies all columns in a given database.
Therefore, In the case above, The asterisk helps database or tell it to select all data that meets the criteria as stated in the query.
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Answer:c)Clean redundant customer data
Explanation:Data cleansing/cleaning is the activity for the elimination of the data which is not required for further use, corrupt, unnecessary etc by detecting it. The data that is being cleared is categorized by levels like irrelevant data, incorrect data, inaccurate data, redundant data etc.
The data is eliminated by the method of correcting , modifying, reducing unnecessary parts,deleting, etc.Thus, the correct option is option(C).
Processor means to break down something.
