Database Management
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Which of these are standard and best practises for SQL?

Answer options

A
Each table must have a primary key.
B
Tables should not have foreign keys.
C
NULL values should never be used.
D
All columns must have unique values.

Correct answer: Each table must have a primary key.

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Key Engineering Takeaway

In Database Management, understanding the underlying mechanics of Database Management is critical for writing performant, bug-free production code and passing rigorous technical architecture reviews.

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