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MySQL MCQs

When joining tables using a left join, which values are always preserved?

Values from the left table are preserved for NULL values in the right table

Values from the right table are preserved for NULL values in the right table

The join will delete rows which contain a NULL value in the left table and preserve all other rows

The join will delete rows which contain a NULL value in the right table and preserve all other rows

Answer

Correct Answer: Values from the left table are preserved for NULL values in the right table

Explanation:

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