Duplicate rows typically occur in the result of a SELECT statement when

Practice More Questions From: Concept Quiz for Module 5

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To convert a database representation into a SELECT statement, one should use

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Using the critical questions provides a guideline

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A database representation requires a table when

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Duplicate rows typically occur in the result of a SELECT statement when

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A prominent type of problem without PK-FK matching is known as

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Examples of poor coding practices are (multiple answers possible)

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In the query formulation process, a problem statement can be

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Examples of redundancy errors are (multiple answers possible)

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Examples of semantic query errors are (multiple answers possible)

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What SQL statement uses a SET clause?

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In a typical join pattern, (multiple answers possible)

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What SQL modification statements use a WHERE clause (multiple answers possible)?

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In an UPDATE statement, only one column can be changed. To update multiple columns of the same row, two UPDATE statements are necessary.

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Indicate the requirements for union compatibility for two tables. More than one answer is possible.

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Matching for SQL set operators involves equality comparison of each corresponding column from two input tables.

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The difference operator (MINUS or EXCEPT) is not communtative meaning the A MINUS B is usually different the B MINUS A.

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The union operator (UNION) is not communtative meaning the A UNION B is usually different the B UNION A.

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The intersection operator (INTERSECT) is communtative meaning the A INTERSECT B is always the same as B INTERSECT A.

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