A.桔梗
B.薄荷
C.连翘
D.甘草
E.苇根
第1题
A.specific
B.typical
C.interesting
D.relevant
第2题
A.SELECT TO_DATE(SYSDATE, ‘FMDAY, DD Month, YYYY‘) FROM dual;
B. SELECT TO_CHAR(SYSDATE, ‘FMDD, DY Month, ‘YYYY‘) FROM dual;
C. SELECT TO_CHAR(SYSDATE, ‘FMDay, DD Month, YYYY‘) FROM dual;
D. SELECT TO_CHAR(SYSDATE, ‘FMDY, DDD Month, YYYY‘) FROM dual;
E. SELECT TO_DATE(SYSDATE, ‘FMDY, DDD Month, YYYY‘) FROM dual;
第3题
A、An argumentative essay is an essay in which you agree or disagree with an issue.
B、You should use reasons to support your opinion.
C、Your goal is to convince your reader that your opinion is right.
D、None of them.
第4题
A. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary BETWEEN t.min_salary AND t.max_salary;
B. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary > t.min_salary, tax_percent
C. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE MIN(e.salary) = t.min_salary AND MAX(e.salary) = t.max_salary
D. You cannot find the information because there is no common column between the two tables.
第5题
A. The SQL statement displays the desired results.
B. The column in the WHERE clause should be changed to display the desired results.
C. The operator in the WHERE clause should be changed to display the desired results.
D. The WHERE clause should be changed to use an outer join to display the desired results.
第7题
A.The SELECT statement is syntactically accurate.
B.The SELECT statement does not work because there is no HAVING clause.
C.The SELECT statement does not work because the column specified in the GROUP BY clause is not in the SELECT list.
D.The SELECT statement does not work because the GROUP BY clause should be in the main query and not in the subquery.
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