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【多选题】

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

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

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

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

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

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

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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更多“Evaluate the SQL statement: TRUNCATE TABLE DEPT; Which three are true about the SQL statement? （）”相关的问题

第1题

[单选题] You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）

A、The tuned plan is not added to the SQL plan baseline. B、The tuned plan is added to the fixed SQL plan baseline as a fixed plan. C、The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan. D、The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.

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第2题

[单选题] You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）

A、The tuned plan is not added to the SQL plan baseline. B、The tuned plan is added to the fixed SQL plan baseline as a fixed plan. C、The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan. D、The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.

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第3题

[] Evaluate the set of SQL statements: What is true about the set?（） Evaluate the set of SQL statements: What is true about the set?（）

A、A. The DESCRIBE DEPT statement displays the structure of the DEPT table. B、B. The ROLLBACK statement frees the storage space occupies by the DEPT table. C、C. The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist. D、D. The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.

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第4题

[] Examine the data from the ORDERS and CUSTOMERS tables. Evaluate the SQL statement: What is the result when the query is executed?（） Examine the data from the ORDERS and CUSTOMERS tables. Evaluate the SQL statement: What is the result when the query is executed?（）

A、A.
B.
C.
D. The query fails because the subquery returns more than one row.
E. The query fails because the outer query and the inner query are using different tables.

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第5题

[单选题] You run the SQL Tuning Advisor （STA） to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement，which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile？（）

A、 The tuned plan is not added to the SQL plan baseline. B、 The tuned plan is added to the fixed SQL plan baseline as a fixed plan. C、 The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan. D、 The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.

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第6题

[] Evaluate the SQL statement: SELECT ROUND(45.953, -1), TRUNC(45.936, 2) FROM dual; Which values are displayed?（） Evaluate the SQL statement: SELECT ROUND(45.953, -1), TRUNC(45.936, 2) FROM dual; Which values are displayed?（）

A、A. 46 and 45 B、B. 46 and 45.93 C、C. 50 and 45.93 D、D. 50 and 45.9 E、E. 45 and 45.93 F、F. 45.95 and 45.93

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第7题

[单选题] Evaluate the SQL statement: What will be displayed?（）

A、0 B、1 C、0.00 D、An error statement

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第8题

[] Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables. Evaluate the SQL statement: SELECT * FROM orders WHERE cust_id = (SELECT cust_id FROM customers WHERE cust_name = 'Smith'); What is the result when the query is executed?（） Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables. Evaluate the SQL statement: SELECT * FROM orders WHERE cust_id = (SELECT cust_id FROM customers WHERE cust_name = 'Smith'); What is the result when the query is executed?（）

A、A.A B、B.B C、C.C D、D.D E、E.E

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第9题

[] Evaluate the following SQL statement used to create the PRODUCTS table: Which statement is true regarding this command?（） Evaluate the following SQL statement used to create the PRODUCTS table: Which statement is true regarding this command?（）

A、A. It executes successfully but partition pruning cannot happen for this partition key. B、B. It produces an error because the TOTAL_VALUE column cannot be used as a partition key. C、C. It produces an error because compression cannot be used for the TOTAL_VALUE partition key. D、D. It executes successfully but the values in the TOTAL_VALUE column would not be physically stored in the partitions.

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第10题

[单选题] The PRODUCTS table has these columns: PRODUCT_ID NUMBER(4) PRODUCT_NAME VARCHAR2(45) PRICE NUMBER(8,2) Evaluate this SQL statement: SELECT * FROM PRODUCTS ORDER BY price, product _ name; What is true about the SQL statement?（）

A、The results are not sorted. B、The results are sorted numerically. C、The results are sorted alphabetically. D、The results are sorted numerically and then alphabetically.

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