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全部博文（487）
发布时间：2019-02-15 11:14:58
9、（5-5） choose the best answerView the Exhibit and examine the structure of the SALES and STORES tables.You want to display the store name and the total quantity sold for each item in the store.Which SQL statement will give the required output?A) SELECT str.name, s1.items_id, SUM(s1.quantit.........【阅读全文】
发布时间：2019-02-14 11:03:17
8、（5-4） choose the best answer:You need to produce a report where each customer's credit limit has been incremented by $1000.In the output, the customer's last name should have the heading Name and the incremented creditlimit should be labeled New Credit Limit. The column headings should have .........【阅读全文】
发布时间：2019-02-14 10:43:30
7、（5-1） choose two:View the Exhibit and examine the structure of the PRODUCTS table.Which two tasks would require subqueries?A) Display the minimum list price for each product status.B) Display the total number of products supplied by supplier 102 and have product status as'obsolete'.C) D.........【阅读全文】
发布时间：2019-02-13 17:13:36
6、（4-21） choose the best answer:View the Exhibit and examine the structure of the CUSTOMERS table.Evaluate the following SQL statement:SQL> SELECT cust_city, COUNT(cust_last_name)FROM customersWHERE cust_credit_limit > 1000GROUP BY cust_cityHAVING AVG(cust_credit_limit) BETWEEN 5000 .........【阅读全文】
发布时间：2019-02-13 16:57:37
5、（4-12） choose two:You executed the following CREATE TABLE statement that resulted in an error:SQL> CREATE TABLE employees(emp_id NUMBER(10) PRIMARY KEY,ename VARCHAR2(20),email NUMBER(3) UNIQUE,address VARCHAR2(500),phone VARCHAR2 (20),resume LONG,hire_date DATE,re.........【阅读全文】
