OCP-1Z0-051-题目解析-第22题

22. You need to create a table for a banking application. One of the columns in the table has the following requirements:

1) You want a column in the table to store the duration of the credit period.

2) The data in the column should be stored in a format such that it can be easily added and subtracted with

DATE data type without using conversion functions.

3) The maximum period of the credit provision in the application is 30 days.

4) The interest has to be calculated for the number of days an individual has taken a credit for.

Which data type would you use for such a column in the table?

（你须要创建一个银行业务表，当中一个字段有例如以下要求：

1）该字段须要存储信贷期限的持续时间。

2）不使用转换函数，就能够简单的和Date数据类型加减。

3）应用中信贷发放的最大周期是30天

4）已经拥有信用卡的个人，按天计算利息。）

A. DATE

B. NUMBER

C. TIMESTAMP

D. INTERVAL DAY TO SECOND

E. INTERVAL YEAR TO MONTH

Answer: D

A：Date类型存储的是一个时间点，不是一段时间（错误）

B：number类型不能和date类型简单的加减（错误）

C: 和A一样存储的是时间点（错误）

D: 正确

E: 错误，不能精确到天

时间： 2024-10-12 16:36:27

OCP-1Z0-051-题目解析-第22题的相关文章

Oracle OCP 11G 051（61题版本）答案解析目录

Oracle OCP 11G 051(61题版本)答案解析目录 61题版本 V9.02 1 http://blog.csdn.net/rlhua/article/details/17635843 2 http://blog.csdn.net/rlhua/article/details/17635887 3 http://blog.csdn.net/rlhua/article/details/17635919 86 4 http://blog.csdn.net/rlhua/article/det

OCP读书笔记(22) - 题库(ExamB)

101.Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose two.) A. The user has dropped an important table that needs to be recovered. B. The database files are corrupted when the database is open. C. You are not ab

英雄会题目解析- 第五届在线编程大赛月赛第三题：石子游戏

题目: 甲乙两人面对若干堆石子,其中每一堆石子的数目可以任意确定.两人轮流按下列规则取走一些石子,游戏的规则如下:1.每一步应取走至少一枚石子:2.每一步只能从某一堆中取走部分或全部石子:3.如果谁无法按规则取子,谁就是输家.如果甲乙两人都采取最优的策略,甲先拿,请问,是甲必胜还是乙必胜.输入格式:多组数据,每组数据两行,第一行是一个整数N, 2<=N<=10000下一行是N个正整数,代表每堆的石子数,石子数在32位整数内.输出格式:每组测试数据输出一行,如果甲存在必胜策略,输出"W

There's Treasure Everywhere! poj1473题目解析

题目: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 总时间限制: 1000ms 内存限制: 65536kB 描述 Finding buried treasures is simple: all you need is a map! The pirates in the Caribbean were famous for their enormous buried treasures and their elaborate maps

OCP-1Z0-051-题目解析-第10题

10. View the Exhibit and examine the structure of the PROMOTIONS table. Each promotion has a duration of at least seven days . Your manager has asked you to generate a report, which provides the weekly cost for each promotion done to l date. Which qu

增量备份，11g052题目解析

增量备份分为差异备份(differential incremental backup)和累积备份(cumulative incremental backup),这是两种执行增量备份操作的不同方法. 80. You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays, to tape. Which two stateme

OCP-1Z0-051-题目解析-第11题

11. View the Exhibit and examine the structure of the PRODUCTS table.All products have a list price. You issue the following command to display the total price of each product after a discount of 25% and a tax of 15% are applied on it. Freight charg

OCP-1Z0-051-题目解析-第1题

1. View the Exhibit and examine the structure of the SALES, CUSTOMERS, PRODUCTS, and TIMES tables. The PROD_ID column is the foreign key in the SALES table, which references the PRODUCTS table. Similarly, the CUST_ID and TIME_ID columns are also fore

Oracle OCP认证考试题库解析052-1&2

QUESTION 1 You notice that the performance of the database has degraded because of frequent checkpoints. Which two actions resolve the issue? (Choose two.) A. Disable automatic checkpoint tuning B. Check the size of the redo log file size and increas