ocp考试资料群：569933648 验证码：ocp OCP 12c 19c考试题库解析与资料群：钉钉群号：35277291
全部博文（487）
发布时间：2019-02-27 11:42:10
View the Exhibit and examine the details of the ORDER_ITEMS table.Evaluate the following SQL statements:SELECT MAX(unit_price*quantity) "Maximum Order"Statement 2:FROM order_itemsWhich statements are true regarding the output of these SQL statements? (Choose all that apply.).........【阅读全文】
发布时间：2019-02-27 11:09:11
Which three tasks can be performed by DDL statements?B) modifying a table to prevent data that violate certain conditions from being entered in a columnD) creating multiple savepoints to enable partial rollback of a transactionAnser：BCE......【阅读全文】
发布时间：2019-02-27 10:32:50
Which statement is true about the Oracle SQL, DELETE and TRUNCATE statements?B) DELETE and TRUNCATE statements can have a rollback done to restore data into a table.D) DELETE but not TRUNCATE statement can be used to selectively remove rows from a table.Answer：D(解析：Truncate 是.........【阅读全文】
发布时间：2019-02-27 09:47:30
View the Exhibit and examine the structure of the ORDERS table.The columns ORDER_MODE and ORDER_TOTAL have the default values 'direct' and 0 respectively.(SELECT order_id,order_date,customer_id FROM orders)(order_id,order_date,order_mode,VALUES(1,TO_DATE(NULL), 'online', 10.........【阅读全文】
发布时间：2019-02-26 17:05:11
Which two statements are true regarding views? (Choose two.)B) The OR REPLACE option is used to change the definition of an existing view without dropping and re-creating it.D) Rows added through a view are deleted from the table automatically when the view is dropped.F) A subquery use.........【阅读全文】
