Which SELECT statement will the result ‘ello World’ from the string ‘Hello World’?（）A、SELECT SUBSTR( ‘Hello World’,1) FROM dual;B、SELECT INITCAP(TRIM (‘Hello World’, 1,1)) FROM dual;C、SELECT LOWER(SUBSTR(‘Hello World’, 1, 1) FROM dual;D、SELECT LOWER(SUBST

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Which SELECT statement will the result ‘ello World’ from the string ‘Hello World’?（）

A、SELECT SUBSTR( ‘Hello World’,1) FROM dual;
B、SELECT INITCAP(TRIM (‘Hello World’, 1,1)) FROM dual;
C、SELECT LOWER(SUBSTR(‘Hello World’, 1, 1) FROM dual;
D、SELECT LOWER(SUBSTR(‘Hello World’, 2, 1) FROM dual;
E、SELECT LOWER(TRIM (‘H’ FROM ‘Hello World’)) FROM dual;

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相似问题和答案

第1题：

The user Sue issues this SQL statement:GRANT SELECT ON sue. EMP TO alice WITH GRANT OPTION; The user Alice issues this SQL statement:GRANT SELECT ON sue. EMP TO reena WITH GRANT OPTION; The user Reena issues this SQL statement:GRANT SELECT ON sue. EMP TO timber;The user Sue issues this SQL statement:REVOKE select on sue. EMP FROM alice;For which users does the revoke command revoke SELECT privileges on the SUE.EMP table?（）

A. Alice only

B. Alice and Reena

C. Alice, Reena, and Timber

D. Sue, Alice, Reena, and Timber

参考答案：C

第2题：

Evaluate this SQL statement:In the statement, which capabilities of a SELECT statement are performed?()

A. Selection, projection, join

B. Difference, projection, join

C. Selection, intersection, join

D. Intersection, projection, join

E. Difference, projection, product

参考答案：A

第3题：

The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this? ()

A. GRANT select ON dept TO ALL_ USER;

B. GRANT select ON dept TO ALL;

C. GRANT QUERY ON dept TO ALL_USERS

D. GRANT select ON dept TO PUBLIC;

参考答案：D

第4题：

What is a sub-select statement?

A．a select statement that selects a subset of fields in a table

B．a select statement that returns a subset of the data in a table

C．a select statement that appears within another select statement

D．a select statement that returns a subset of the constraints on a field

正确答案：C

第5题：

Evaluate this SQL statement:SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAMEFROM EMPLOYEES e, DEPARTMENTS dWHERE e.DEPARTMENT_ID = d.DEPARTMENT_ID;In the statement, which capabilities of a SELECT statement are performed?（）

A.selection, projection, join

B.difference, projection, join

C.selection, intersection, join

D.intersection, projection, join

E.difference, projection, product

参考答案：A

第6题：

Evaluate this SQL statement: SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAME FROM EMP e, DEPARTMENT d WHERE e.DEPARTMENT_ID = d.DEPARTMENT_ID; In the statement, which capabilities of a SELECT statement are performed?（）

A. Selection, projection, join

B. Difference, projection, join

C. Selection, intersection, join

D. Intersection, projection, join

E. Difference, projection, product

参考答案：A

第7题：

Exhibit:Examine the data in the EMPLOYEES table.Examine the subquery:SELECT last_nameFROM employeesWHERE salary IN (SELECT MAX(salary)FROM employeesGROUP BY department_id);Which statement is true?()

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.

参考答案：A

第8题：

In which four clauses can a subquery be used? ()

A. in the INTO clause of an INSERT statement

B. in the FROM clause of a SELECT statement

C. in the GROUP BY clause of a SELECT statement

D. in the WHERE clause of a SELECT statement

E. in the SET clause of an UPDATE statement

F. in the VALUES clause of an INSERT statement

参考答案：B, D, E, F

第9题：

Click the Exhibit button and examine the data in the EMPLOYEES table.Examine the subquery:SELECT last_nameFROM employeesWHERE salary IN (SELECT MAX(salary)FROM employeesGROUP BY department_id);Which statement is true?（）

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.

参考答案：A

第10题：

In which four clauses can a subquery be used?（）

A、in the INTO clause of an INSERT statement
B、in the FROM clause of a SELECT statement
C、in the GROUP BY clause of a SELECT statement
D、in the WHERE clause of a SELECT statement
E、in the SET clause of an UPDATE statement
F、in the VALUES clause of an INSERT statement

正确答案:A,B,D,E

Which SELECT statement will the

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