JOIN departments d - USING (department_id) WHERE d.department_id NOT IN (10, 40) ORDER BY dept_name; The statement fails when executed. Which change fixes the error?
A.
remove the ORDER BY clause
B.
remove the table alias prefix from the WHERE clause
C.
remove the table alias from the SELECT clause
D.
prefix the column in the USING clause with the table alias
E.
prefix the column in the ORDER BY clause with the table alias
F.
replace the condition "d.department_id NOT IN (10, 40)" in the WHERE clause with "d.department_id <> 10 AND d.department_id <> 40"
Suggested Answer:CE🗳️
Prefix the column in the ORDER BY Clause would cause the statement to succeed, assuming that the statement failed because the dept_name existed in employee & department tables. Not C: Removing the alias from the columns in the SELECT clause would cause the Statement to fail if the columns existing in both tables.
B is correct.
When you’re using the NATURAL JOIN or JOIN USING syntax, you can’t use
alias or table names to qualify the column names on the columns used in
the join operation anywhere in the query.
The answer should be B
B. remove the table alias prefix from the WHERE clause
Rest all is not needed to done.
upvoted 2 times
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