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单选题
Customer类中有一个Set类型的orders属性，用来存放Order订单对象，在Customer.hbm.xml文件中，用哪个元素映射orders属性（）
A
＜set＞
B
＜one-to-many＞
C
＜many-to-one＞
D
＜property＞
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在Hibernate中，Customer类中有一个Set类型的orders属性，用于存放Order订单对象，在Customer.hbm.xml文件中，可以用（）元素映射orders属性。A、＜set＞B、＜one-to-many＞C、＜many-to-one＞D、＜property＞
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Customer类中有一个Set类型的orders属性，用来存放Order订单对象，在Customer.hbm.xml文件中，用哪个元素映射orders属性（）A、＜set＞B、＜one-to-many＞C、＜many-to-one＞D、＜property＞
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The details of the order ID， order date， order total， and customer ID are obtained from the ORDERS table. If the order value is more than 30000， the details have to be added to the LARGEjDRDERS table. The order ID， order date， and order total should be added to the ORDERJHISTORY table， and order ID and customer ID should be added to the CUSTJHISTORY table. Which multitable INSERT statement would you use？ （）A、 Pivoting INSERTB、 Unconditional INSERTC、 Conditional ALL INSERTD、 Conditional FIRST INSERT
考题
单选题The details of the order ID， order date， order total， and customer ID are obtained from the ORDERS table. If the order value is more than 30000， the details have to be added to the LARGEjDRDERS table. The order ID， order date， and order total should be added to the ORDERJHISTORY table， and order ID and customer ID should be added to the CUSTJHISTORY table. Which multitable INSERT statement would you use？ （）A
Pivoting INSERTB
Unconditional INSERTC
Conditional ALL INSERTD
Conditional FIRST INSERT
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
单选题在Hibernate中，Customer类中有一个Set类型的orders属性，用于存放Order订单对象，在Customer.hbm.xml文件中，可以用（）元素映射orders属性。A
＜set＞B
＜one-to-many＞C
＜many-to-one＞D
＜property＞
考题
单选题View the Exhibit and examine the structure of the ORDERS table. Which task would require subqueries？ （）A
displaying the total order value for sales representatives 161 and 163B
displaying the order total for sales representative 161 in the year 1999C
displaying the number of orders that have order mode online and order date in 1999D
displaying the number of orders whose order total is more than the average order total for all online orders
考题
单选题Which statement accomplish 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 NUMBER (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On your Oracle Database, you issue the following commands to create indexes: SQL CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customer_id, sales_rep_id) INVISIBLE; SQL CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customer_id, sales_rep_id); Which two statements are true?（）AOnly the ORD_CUSTOMER_IX1 index created.BBoth the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table.CBoth the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.DThe ORD_CUSTOMER_IX1 index is not used by the optimizer even when the OPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true.EBoth the indexes are created and used by the optimizer for queries on the ORDERS table.FBoth the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table.
考题
单选题你是一个wide world importers公司的数据库开发人员，你创建了用来存储订单的数据库。订单将被输入客户/服务器应用程序中。每次有一个新订单被输入，并被赋予一个唯一的编号，按升序排列。每天平均有10000个订单被输入。你创建一个名为Orders的新表并在其中添加一个Order Number字段。接下来你应该做什么？（）A
为该字段设置全局唯一标识符的数据类型。B
为该字段设置int数据类型，并为该字段设置一致性的属性。C
为该字段设置int数据类型。在表中创建一个用户自定义函数用于查看订单编号的最大值。D
为该字段设置int数据类型。创建一个名为Next Key的表，并在其中添加Next Order字段。将该字段的数据类型设置为int。在Next Key表中创建一个存储过程用于检索更新value held。
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
单选题你开发了一个命令登陆应用程序TestKingOrder.TestKingOrder.用一个DataSet方法来命名CurrentOrders来维护当用户修改数据时内存中的数据。在CurrentOrders中，你添加了DataTable对象命名为Orders和OrderDetails.OrderDetails用来容纳关于命令行中的数据。用户经常发现一行命令不被包含在OrderDetails里面.在这种情况下，他们删除了Orders中的order。你必须确保用户不能删除任何关于order在OrderDetails中的数据。你应该怎么做？（）A
添加一个UniqueConstraint对象到CurrentOrders中B
添加一个ForeignKeyConstraint对象到CurrentOrders中C
添加一个DataRelation对象到CurrentOrders中，并且设置ChildKeyConstraint的属性为指向theappropriate行D
添加一个DataRelation对象到CurrentOrders中，并且设置ParentKeyConstraint的属性为指向适当的行
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
单选题你正在创建一个ASP.NET应用来追踪一家公司的销售订单。此应用用的是ADO.NETDataSet对象，DataSet包含了两个DataTable对象。一个表的名字为Orders，另一个表名为OrderDetails。来自Orders表的数据显示在列表框中，你希望当用户在列表框中选择了Orders表的信息时，它相应的Orderdetails就会显示在Gri中。你想修改这些对象使你的代码能够找到你选择的order的所有orderdetails信息，你该怎么做？（）A
添加DataRelation对象到DataSet对象的Relations集合B
使用DataSet.Merge方法把Orders表和OrderDetails表相互连接起来C
将一个ForeignKeyConstraint添加到OrderDetails表D
将一个keyrefconstraint添加到Dataset架构.
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