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单选题
The customer and order tables are often used in joins, thereby resulting in complex queries. You created views to simplify the writing of queries. These views are stored in().
A

user tables

B

view segment

C

table segment

D

data dictionary

E

object segment

F

performance tables


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考题 单选题You need to create a table named ORDERS that contains four columns: 1.an ORDER_ID column of number data type 2.a CUSTOMER_ID column of number data type 3.an ORDER_STATUS column that contains a character data type 4.a DATE_ORDERED column to contain the date the order was placed When a row is inserted into the table, if no value is provided for the status of the order, the value PENDING should be used instead. Which statement accomplishes this?()A CREATE TABLE orders ( order_id NUMBER(10), customer_id NUMBER(8), order_status NUMBER(10) DEFAULT 'PENDING', date_ordered DATE );B CREATE TABLE orders ( order_id NUMBER(10), customer_id NUMBER(8), order_status VARCHAR2(10) = 'PENDING', date_ordered DATE );C CREATE OR REPLACE TABLE orders ( order_id NUMBER(10), customer_id NUMBER(8), order_status VARCHAR2(10) DEFAULT 'PENDING', date_ordered DATE );D CREATE OR REPLACE TABLE orders ( order_id NUMBER(10), customer_id NUMBER(8), order_status VARCHAR2(10) = 'PENDING', date_ordered DATE );E CREATE TABLE orders ( order_id NUMBER(10), customer_id NUMBER(8), order_status VARCHAR2(10) DEFAULT 'PENDING', date_ordered DATE );F CREATE TABLE orders ( order_id NUMBER(10), customer_id NUMBER(8), order_status VARCHAR2(10) DEFAULT 'PENDING', date_ordered VARCHAR2 );

考题 单选题This machine ()out of order very often, but now it works well.A is used to beB was used to beC used to beD was used to

考题 单选题In which scenario will you create a sorted hash cluster? ()A  if the application uses queries joining tables only occasionallyB  if the full table scan is executed often on only one table of the clustered tablesC  if the data for all the rows of a cluster key value exceeds one or two Oracle blocksD  when you want the data to be returned automatically in the chronological order

考题 单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause?()A  The VERSIONS BETWEEN clause may be used in DML statements.B  The VERSIONS BETWEEN clause may be used in DDL statements.C  The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D  The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.

考题 单选题You need to create a table named ORDERS that contain four columns: 1. an ORDER_ID column of number data type 2. aCUSTOMER_ID column of number data type 3. an ORDER_STATUS column that contains a character data type 4. aDATE_ORDERED column to contain the date the order was placed. When a row is inserted into the table, if no value is provided when the order was placed, today's date should be used instead. Which statement accomplishes this?()A CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);B CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);C CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);D CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);E CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE);F CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE);

考题 多选题The ORDERS table has these columns: ORDER_ID NUMBER(4) NOT NULL CUSTOMER_ID NUMBER(12) NOT NULL ORDER_TOTAL NUMBER(10,2) The ORDERS table tracks the Order number, the order total, and the customer to whom the Order belongs. Which two statements retrieve orders with an inclusive total that ranges between 100.00 and 2000.00 dollars? ()ASELECT customer_id, order_id, order_total FROM orders RANGE ON order _ total (100 AND 2000) INCLUSIVE;BSELECT customer_id, order_id, order_total FROM orders HAVING order _ total BETWEEN 100 and 2000;CSELECT customer_id, order_id, order_total FROM orders WHERE order _ total BETWEEN 100 and 2000;DSELECT customer_id, order_id, order_total FROM orders WHERE order_total= 100 and = 2000;ESELECT customer_id, order_id, order_total FROM orders WHERE order_total= 100 and order_total = 2000;

考题 单选题The customer and order tables are often used in joins, thereby resulting in complex queries. You created views to simplify the writing of queries. These views are stored in().A user tablesB view segmentC table segmentD data dictionaryE object segmentF performance tables