我们正常进行除法运算时,sql默认是返回一个四舍五入的数

比如12除以5,17除以3

--算法1:返回结果:2  需要的是2.40
select (12/5) as 结果1
--算法2:返回结果:5 需要的是5.67
select (17/3) as 结果2

返回结果如下:

aaarticlea/png;base64,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" alt="" />

那么如何拿到2.40 和5.67呢

--算法3:返回结果:2.40
select cast(12*1.0/5 as decimal(18,2)) as 结果3
--算法4:返回结果:5.67
select cast(17*1.0/3 as decimal(18,2)) as 结果4

返回真正结果

aaarticlea/png;base64,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" alt="" />

我们得到结果是2.40 和5.67,那么如何得到整数部分和小数部分

--获取2.40的整数部分
select FLOOR(2.40) as 整数部分
--获取2.40的小数部分
select (2.40-FLOOR(2.40)) as 小数部分 --获取5.67的整数部分
select FLOOR(5.67) as 整数部分
--获取5.67的小数部分
select (5.67-FLOOR(2.40)) as 小数部分

返回结果(两个一起查,上面是单个)

aaarticlea/png;base64,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" alt="" />

sql server 中进行除法运算时,如何得到结果是小数形式呢?的更多相关文章

  1. SQL Server中的集合运算: UNION, EXCEPT和INTERSECT

    SQL Server中的集合运算包括UNION(合并),EXCEPT(差集)和INTERSECT(相交)三种. 集合运算的基本使用 1.UNION(合并两个查询结果集,隐式DINSTINCT,删除重复 ...

  2. SQL Server中多表连接时驱动顺序对性能的影响

    本文出处:http://www.cnblogs.com/wy123/p/7106861.html (保留出处并非什么原创作品权利,本人拙作还远远达不到,仅仅是为了链接到原文,因为后续对可能存在的一些错 ...

  3. sql server中除数为零的处理技巧

    在sql server中做除法处理的时候,我们经常需要处理除数为零的情况,因为如果遇到这种情况的时候,sqlserver会抛出遇到以零作除数错误的异常,我们总不希望把这个异常显示给用户吧. 做个会报这 ...

  4. 关于BigDecimal类型在jsp页面中进行除法运算问题

    出自:http://blog.csdn.net/u011910290/article/details/52935337 问题描述: 在项目编写过程中,发现BigDecimal在jsp中进行除法运算时, ...

  5. SQL Server中灾难时备份结尾日志(Tail of log)的两种方法

    转自:http://www.cnblogs.com/CareySon/archive/2012/02/23/2365006.html SQL Server中灾难时备份结尾日志(Tail of log) ...

  6. SqlServer还原数据库时提示:异常终止,不能在此版本的SQL Server中启动,因为它包含分区函数

    场景 在SqlServer Management中进行数据库还原时提示: 数据库不能在此版本的SQL Server中启动,因为它包含分区函数. 点击左下角的查看详细信息 实现 电脑上安装的是SQL S ...

  7. Sql Server中的谓词和运算符

    谓词和运算符配合使用是我们得到理想数据的最佳途径. 一.浅谈谓词 谓词的概念:一个运算结果为True.False或Unknown的逻辑表达式.它的运用范围有:where子句.Having子句.Chec ...

  8. SQL SERVER中什么情况会导致索引查找变成索引扫描

    SQL Server 中什么情况会导致其执行计划从索引查找(Index Seek)变成索引扫描(Index Scan)呢? 下面从几个方面结合上下文具体场景做了下测试.总结.归纳. 1:隐式转换会导致 ...

  9. SQL Server中关于跟踪(Trace)那点事

    前言 一提到跟踪俩字,很多人想到警匪片中的场景,同样在我们的SQL Server数据库中“跟踪”也是无处不在的,如果我们利用好了跟踪技巧,就可以针对某些特定的场景做定向分析,找出充足的证据来破案. 简 ...

随机推荐

  1. /usr/bin/perl:bad interpreter:No such file or directory 的解决办法

    yum -y install gcc gcc-c++ perl make kernel-headers kernel-devel 可能会提示:Cannot find a valid baseurl f ...

  2. 如何将SqlServer中表结构以及表数据全部导出

    不记录,很快就忘记了:记录了,仿佛也记得更牢了 步骤如下: Step1:右击数据库,弹出的标签中选择Tasks---Generate Scripts... Step2: 弹出新窗口中,勾选" ...

  3. 求1000以内的质数c语言

    之前在做求1000以内的质数的时候,我们一般能想到的就是从3~(根号)no,逐一和no除,如果存在某个i使得  i|no成立的话,说明no不是质数(“i|no”是i整除除no的意思): 在<明解 ...

  4. 力扣(LeetCode)226. 翻转二叉树

    翻转一棵二叉树. 示例: 思想 递归 java版 /** * Definition for a binary tree node. * public class TreeNode { * int va ...

  5. datagrid数据表格当数据为0的时候页面不显示数据

    如下图: datagrid数据表格当数据为0的时候页面不显示数据,为空的表格数据全是0,但是页面无法显示 传递的json数据也是没问题的: 所以实在想不通,为什么easyUI datagrid 不显示 ...

  6. Asp.net core 学习笔记 ( ViewComponent 组件 )

    refer : https://docs.microsoft.com/en-us/aspnet/core/mvc/views/view-components core 和 Angular 的 comp ...

  7. datagrid复制

    private void Dgv_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar == (char)1) // Ctrl-A ...

  8. proc-virtual-file-system

    内核代码中分别找出一处 proc 和 seq_file 的完整使用过程,记录下来 在用户空间进行相应"读"."写" 介绍 Proc 虚拟文件系统 操作 proc ...

  9. 关于OkHttp同步请求的小错误

    今天进行OkHttp的同步请求 写的都是按照官方的去写的 但是返回的东西却不是我想要的 原因是我直接拿到Response后,直接Response.toString,想要拿到返回值 但是这样是错误的,正 ...

  10. IntelliJ IDEA 第一个 Scala 程序

    IntelliJ 安装完成 Scala 插件后,你需要尝试使用 IntelliJ 来创建并且运行第一个程序. 通常这个程序只是简单的输出 Hello World. 创建一个新工程 在文件下面选择新建, ...