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发布时间:2019-03-01 14:20:17

Examine the structure and data in the PRICE_LIST table:You plan to give a discount of 25% on the product price and need to display the discount amountWhich SQL statement would give the required result?FROM PRICE_LIST;FROM PRICE_LIST;FROM PRICE LIST;FROM PRICE_LIST;(解析.........【阅读全文】

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发布时间:2019-03-01 13:56:06

51、(12-10)choose the best answer:SQL> SELECT cust_id, cust_last_nameWHERE cust_credit_limit INFROM customersWhich statement is true regarding the above query if one of the values generated by the subquery is NULL?B) It produces an error.D) It executes but returns no rows..........【阅读全文】

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发布时间:2019-03-01 13:14:27

Examine the structure of the MARKS table:Which two statements would execute successfully?FROM marksB) SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subjectl)WHERE subjectl > subject2;FROM marksD) SELECT student_name, SUM (subjectl)WHERE student_name LIKE 'R%';(解析:C .........【阅读全文】

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发布时间:2019-03-01 11:53:56

Examine the structure of the SHIPMENTS table:You want to generate a report that displays the PO_ID and the penalty amount to be paid(罚款数额) if the SHIPMENT_DATE is later than one month from the PO_DATE. The penalty is $20 per day.SQL> SELECT po_id, CASETO_CHAR((shipment_date - po_da.........【阅读全文】

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发布时间:2019-02-28 11:51:14

View the Exhibit and examine the description for the PRODUCTS and SALES table.PROD_ID is a primary key in the PRODUCTS table and foreign key in the SALES table with ON DELETE CASCADE option. The SALES table contains data for the last three years. You want to remove all the rows from the PRODUC.........【阅读全文】

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