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We have accepted your Order No.TR22.Please open the relative L／C,()here four weeks before the date of shipment.
A、that should reach
B、which should reach
C、when it reaches
D、which should arrive at
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更多 “ We have accepted your Order No.TR22.Please open the relative L／C,()here four weeks before the date of shipment. A、that should reachB、which should reachC、when it reachesD、which should arrive at ” 相关考题
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在Oracle中,语句()将ORDER_DATE日期值’2000年3月18日’显示为‘2000年1月1日’。
A.SELECTROUND(order_date,’day’)FROMinventoryB.SELECTROUND(order_date,’YEAR’)FROMinventoryC.SELECTROUND(order_date,’month’)FROMinventoryD.SELECTROUND(to_char(order_date,’yyyy’))FROMinventory
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DOS的英文表示是()。
A、Disk、Operating、SystemB、Daily、Operating、SystemC、Disk、Open、SystemD、Date、Open、System
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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);
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You need to create a table named ORDERS that contain four columns:1. an ORDER_ID column of number data type2. aCUSTOMER_ID column of number data type3. an ORDER_STATUS column that contains a character data type4. 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);
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Examine the SQL statements that creates ORDERS table: CREATE TABLE orders(SER_NO NUMBER UNIQUE,ORDER_ID NUMBER,ORDER_DATE DATE NOT NULLSTATUS VARCHARD2(10)CHECK (status IN (‘CREDIT‘,‘CASH‘)),PROD_ID_NUMBERREFERENCES PRODUCTS(PRODUCT_ID),ORD_TOTAL NUMBER,PRIMARY KEY (order id, order date));For which columns would an index be automatically created when you execute the aboveSQL statement? （）A. SER_NOB. ORDER_IDC. STATUSD. PROD_IDE. ORD_TOTALF. Composite index on ORDER_ID and ORDER_DATE
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Examine the SQL statement that creates ORDERS table:CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN (‘CREDIT‘, ‘CASH‘)), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date));For which columns would an index be automatically created when you execute the above SQL statement? （）A. SER_NOB. ORDER_IDC. STATUSD. PROD_IDE. ORD_TOTALF. composite index on ORDER_ID and ORDER_DATE
考题
Examine the SQL statements that creates ORDERS table:For which columns would an index be automatically created when you execute the above SQL statement? ()
A. SER_NOB. ORDER_IDC. STATUSD. PROD_IDE. ORD_TOTALF. Composite index on ORDER_ID and ORDER_DATE
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针对数据库bookshop，创建视图sale_item_view，该视图中包含订单编号、订货日期、图书编号及数量。可以使用以下SQL语句实现： create view sale_item_view（order_no，order_date，book_no，qty） as select sales.order_no,sales.order_date,book_no,qty from sales,sale_item where sales.order_no=sale_item.order_no
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