Knowledge quiz

It's time to put what you've learned to the test, get 3 right to pass this unit.

1.

For string-based data types, NULL is equal to an empty string or a space character.

Choose the correct answer.
2.

What types of keys are always found in a table?

Choose the correct answer.
3.

It is necessary to provide a SQL query with specific instructions that indicate how order to locate, retrieve, and present the desired data.

Choose the correct answer.
4.

The HAVING clause behaves the same as the WHERE clause.

Choose the correct answer.
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