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In order to perform Flashback Transaction Query operations， which of these steps are required？（）
- A、 Ensure that database is running with version 10.1 compatibility.
- B、 Enable Flashback Logging.
- C、 Enable Supplemental Logging.
- D、 Ensure that the database is running with version 10.0 compatibility.
- E、 Ensure that the database is in ARCHIVELOG mode.
参考答案
更多 “In order to perform Flashback Transaction Query operations， which of these steps are required？（）A、 Ensure that database is running with version 10.1 compatibility.B、 Enable Flashback Logging.C、 Enable Supplemental Logging.D、 Ensure that the database is running with version 10.0 compatibility.E、 Ensure that the database is in ARCHIVELOG mode.” 相关考题
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设有订单表order(其中包含字段：订单号，客户号，职员号，签订日期，金额)，查询2007年所签订单的信息，并按金额降序排序，正确的SQL命令是( )。A．SELECT * FROM order WHERE YEAR(签订日期)=2007 ORDER BY 金额 DESCB．SELECT * FROM order WHILE YEAR(签订日期)=2007 ORDER BY 金额 ASCC．SELECT * FROM order WHERE YEAR(签订日期)=2007 ORDER BY 金额 ASCD．SELECT * FROM order WHILE YEAR(签订日期)=2007 ORDER BY 金额 DESC
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柴油机功率计算公式为Pe=cpeni,根据pe和n二个参数变化情况,可将船用柴油机的特性分为:()Ⅰ、pe不变,Pe随n变化而变化称速度特性Ⅱ、n不变,Pe随pe改变而变化称速度特性Ⅲ、pe和n都改变的称推进特性Ⅳ、n不变,Pe随pe改变而变化称负荷特性
A、Ⅱ~ⅣB、Ⅰ+ⅣC、Ⅰ+Ⅲ+ⅣD、Ⅲ+Ⅳ。
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The ORDERS table has these columns:ORDER_ID NUMBER(4) NOT NULLCUSTOMER_ID NUMBER(12) NOT NULLORDER_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? （）A. SELECT customer_id, order_id, order_total FROM orders RANGE ON order _ total (100 AND 2000) INCLUSIVE;B. SELECT customer_id, order_id, order_total FROM orders HAVING order _ total BETWEEN 100 and 2000;C. SELECT customer_id, order_id, order_total FROM orders WHERE order _ total BETWEEN 100 and 2000;D. SELECT customer_id, order_id, order_total FROM orders WHERE order_total= 100 and = 2000;E. SELECT customer_id, order_id, order_total FROM orders WHERE order_total= 100 and order_total = 2000;
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（）is for the operation ordering and the information exchange by internet among the firms. A、order processingB、order makingC、Electronic order systemD、order form
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（）is for the operation ordering and the information exchange by Internet among the firms.A、Order ProcessingB、Order makingC、Electronic Order System (EOS)D、Order form
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Which two statements are true regarding the ORDER BY clause? （）A、The sort is in ascending by order by default.B、The sort is in descending order by default.C、The ORDER BY clause must precede the WHERE clause.D、The ORDER BY clause is executed on the client side.E、The ORDER BY clause comes last in the SELECT statement.F、The ORDER BY clause is executed first in the query execution.
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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
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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;
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多选题Which two statements are true regarding the ORDER BY clause? （）AThe sort is in ascending by order by default.BThe sort is in descending order by default.CThe ORDER BY clause must precede the WHERE clause.DThe ORDER BY clause is executed on the client side.EThe ORDER BY clause comes last in the SELECT statement.FThe ORDER BY clause is executed first in the query execution.
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单选题Any shipper can insist upon the bill of lading incorporating a statement as to（）of the goods.A
reasonable order and conditionB
apparent order and conditionC
rational order and conditionD
good order and condition
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单选题设有订单表order（其中包含字段：订单号，客户号，职员号，签订日期，金额），查询2007年所签订单的信息，并按金额降序排序，正确的SQL命令是（ ）。A
SELECT * FROM order WHERE YEAR（签订日期）=2007 ORDER BY金额DESCB
SELECT * FROM order WHILE YEAR（签订日期）=2007 ORDER BY金额ASCC
SELECT * FROM order WHERE YEAR（签订日期）=2007 ORDER BY金额ASCD
SELECT * FROM order WHILE YEAR（签订日期）=2007 ORDER BY金额DESC
考题
单选题包材结构从内向外正确的排列是（）。A
PE-PE-铝箔-PE-纸板-PE；B
PE--铝箔-PE-纸板-PE-PE；C
PE-纸板--铝箔-PE--PE；D
PE-铝箔-纸板PE-PE-PE
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_____A
When he can receive the order.B
What the order number is.C
When he should send the order.D
What’s wrong with the order.
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