Write a SQL query to get the second highest salary from the Employee table Id | Salary ---|---1|1002|2003|300For example, given the above Employee table, the query shouldreturn200asthe second highest salary. If thereisno second highest salary, then the query shouldreturnnull. SecondHighe...
代码实现 # Write your MySQL query statement below--解法一: 通过调用max函数来获取最大值selectmax(Salary)asSecondHighestSalaryfromEmployeewhereSalary<(selectmax(Salary)fromEmployee);--解法二: 通过IFNULL函数。IFNULL(expr1, expr2): 如果expr1不是NULL,就返回expr1,否则就返回expr2selectIFNULL((selectD...
SQL中的 CASE 类似编程语言里的 if-then-else 语句,用做逻辑判断。可以用于SELECT语句中,也可以用在WHERE,GROUP BY 和 ORDER BY 子句;可以单独使用,也可以和聚合函数结合使用。 语法如… JessieY 实习中SQL技巧总结 甜甜圈加糖 3-SQL语句汇总、分组、排序 一、主要知识点汇总函数 count(计数),sum,avg,max,min...
Write a SQL query to get the second highest salary from the Employee Table. For example, given the above Employee table, the query should return 200 as the second highest salary. If there is no second highest salary, then the query should return null. 查询结果 三、SQL 语句 3.1 自己写的 ...
SQL代码: select IFNULL((select distinct(Salary) from Employee order by Salary desc limit 1,1),null) as SecondHighestSalary 学到了一个sql函数IFNULL,该函数的作用是判断查询结果集是否为空,若为空则返回第二个参数 还有一种做法,直接用两个select解决 ...
原题如下: Write a SQL query to get the second highest salary from theEmployeetable. +---+---+ | Id | Salary | +---+---+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +---+---+ 1. 2. 3. 4. 5. 6. 7. For
Write a SQL query to get the second highest salary from theEmployeetable. +---+---+ | Id | Salary | +---+---+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +---+---+ 1. 2. 3. 4. 5. 6. 7. For example, given
Get max value with linq query Get sql server return value in asp.net get the databasename from web.config Get the last inserted row's Identity (ID) using DataTable and Row getting an error -> "Min (1) must be less than or equal to max (-1) in a Range object." while queryin...
TO GET 2nd HIGHEST SALARY IN EMP: select top 1 sal from EMP where sal < (select MAX(sal) from EMP)order by sal desc TO GET 1st HIGHEST SALARY IN EMP: select top 1 sal from EMP order by sal desc Thanks, Srinath (Let me know if it fails for one reason or the other) ...
Write a SQL query to get the second highest salary from the Employee table. +---+---+ | Id | Salary | +---+---+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +---+---+ For example, given the above Employee table, the query should return200as the second highest salary. If...