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Question 43 🔥

Which is an iSQL*Plus command?

Which database solution meets these requirements?

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Question 44 🔥

Examine the statement:Create synonym emp for hr.employees;What happens when you issue the statement?

Which database solution meets these requirements?

A. An error is generated.

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B. You will have two identical tables in the HR schema with different names.

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C. You create a table called employees in the HR schema based on you EMP table.

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D. You create an alternative name for the employees table in the HR schema in your own schema. D

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Question 45 🔥

Evaluate the following SQL query;What would be the outcome?

Which database solution meets these requirements?

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Question 46 🔥

Examine the description of the EMPLOYEES table:EMP_ID NUMBER(4) NOT NULL -LAST_NAME VARCHAR2(30) NOT NULL -FIRST_NAME VARCHAR2(30)DEPT_ID NUMBER(2)Which statement produces the number of different departments that have employees with last name Smith?

Which database solution meets these requirements?

A. SELECT COUNT(*) FROM employees WHERE last_name='Smith';

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B. SELECT COUNT (dept_id) FROM employees WHERE last_name='Smith';

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C. SELECT DISTINCT(COUNT(dept_id)) FROM employees WHERE last_name='Smith';

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D. SELECT COUNT(DISTINCT dept_id) FROM employees WHERE last_name='Smith';

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E. SELECT UNIQUE(dept_id) FROM employees WHERE last_name='Smith';

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Question 47 🔥

Which two statements are true regarding single row functions? (Choose two.)

Which database solution meets these requirements?

A. They can be nested only to two levels.

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B. They always return a single result row for every row of a queried table.

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C. Arguments can only be column values or constant.

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D. They can return a data type value different from the one that is referenced.

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E. They accept only a single argument.

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Discussion of the question

Question 48 🔥

Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? (Choose three.)

Which database solution meets these requirements?

A. It releases the storage space used by the table.

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B. It does not release the storage space used by the table.

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C. You can roll back the deletion of rows after the statement executes.

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D. You can NOT roll back the deletion of rows after the statement executes.

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E. An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.

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F. You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table

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Discussion of the question

Ready to Pass Your Certification Test

oracle 1Z0_051

Exam contains 287 questions

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