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In SQL, which of the following syntax is correct?
In SQL, which of the following syntax is correct? A. SELECT FROM tblcustomer B. DELETE FROM tblcustomer C. UPDATE FROM tblcustomer D. All correct Answer: Option A
Category: Education
In SQL, why you should always use WHERE clause when using DELETE?
In SQL, why you should always use WHERE clause when using DELETE? A. If you don’t use WHERE clause, it will accidently delete all the records B. Because you want to delete all the records C. Because it is easy…
In SQL, why you should always use WHERE clause when using UPDATE?
In SQL, why you should always use WHERE clause when using UPDATE? A. If you don’t use WHERE clause, it will accidently update all the records B. Because you want to update all the records C. Because it is easy…
If you develop a mobile app, which methodology is wrong for that?
If you develop a mobile app, which methodology is wrong for that? A. Waterfall B. Rapid App Development C. Agile D. None correct Answer: Option A
Why Waterfall methodology is longer relevant for today’s system project?
Why Waterfall methodology is longer relevant for today’s system project? A. Because once a step is finished, it cannot go back. B. Because it is too fast. C. Because it always needs user inputs. D. None correct Answer: Option A
What is step is not belong to SDLC?
What is step is not belong to SDLC? A. Marketing B. System Designing C. Coding D. All correct Answer: Option A
In DB, which attribute is always unique for each item?
In DB, which attribute is always unique for each item? A. ISBN – International Standard Book Number B. S/N – Product Serial Number C. SKU – Stock Keeping Unit D. None correct Answer: Option D
In DB, which attribute is not unique for each item?
In DB, which attribute is not unique for each item? A. ISBN – International Standard Book Number B. S/N – Product Serial Number C. VIN – Vehicle Identification Number D. None correct Answer: Option D
Which normalization that has the “removing transitive dependency” step?
Which normalization that has the “removing transitive dependency” step? A. 1NF B. 2NF C. 3NF D. None correct Answer: Option C
Which normalization that has the “removing partial dependency” step?
Which normalization that has the “removing partial dependency” step? A. 1NF B. 2NF C. 3NF D. None correct Answer: Option B