SELECT prod_name,prod_price FROM products WHERE (vend_id = 1002 OR id = 1003) AND prod_prive >=10 7、IN操作符 指定范围:查询username是admin和test1的所有用户信息 SELECT * FROM user_info WHERE username IN (‘admin’,‘test1’) 8、NOT 操作符 排除之后跟着的任何条件,复杂sql效果明显: SELECT...
SQL USEAdventureWorks2022; GOSELECTTOP (5)PERCENTJobTitle, HireDateFROMHumanResources.EmployeeORDERBYHireDateDESC; GO Include tie values A. Use WITH TIES to include rows that match the values in the last row The following example gets the top10percent of all employees with the highest salary an...
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SELECT TOP 1 EmployeeID, Salary FROM Employee ORDER BY Salary DESC; 这将返回工资最高的员工的EmployeeID和Salary。 2.获取指定百分比的记录 有时候需要根据一定的百分比从数据库中检索记录。TOP关键字可以帮助我们实现这个需求。例如,如果想要检索出工资最高的10的员工,可以使用以下查询: SELECT TOP 10 PERCENT ...
编写一个 SQL 查询,找出每个部门工资最高的员工。例如,根据上述给定的表格,Max 在 IT 部门有最高工资,Henry 在 Sales 部门有最高工资。 +---+---+---+ | Department | Employee | Salary | +---+---+---+ | IT | Max | 90000 | | Sales | Henry | 80000 | +---+...
-- 如果你想根据某个字段(比如 Salary)进行排序,并选择前 5 个 SELECT TOP 5 Name, Salary FROM Employees ORDER BY Salary DESC; -- 这将返回薪水最高的前 5 个员工 -- 或者,你也可以使用百分比来选择顶部的记录 -- 例如,选择前 10% 的员工(注意:这在 SQL Server 2012 及更高版本中才支持) ...
SQL Server Interview Questions and Answers MySQL Interview Questions DB2 Interview Questions and Answers PL/SQL Interview Questions and Answers Oracle DBA Interview Questions and Answers Top 35 Database Testing Interview Questions and Answers How to Find the Second Highest Salary in SQLMySQL...
Write a SQL query to find employees who earn the top three salaries in each of the department. For the above tables, your SQL query should return the following rows. 1# Write your MySQL query statement below2selectd.NameasDepartment,e.NameasEmployee,e.Salary3fromDepartment d,Employee e4wher...
Specifying WITH TIES ensures that employees with salaries equal to the lowest salary returned (the last row) are also included in the result set, even if it exceeds 10 percent of employees. SQL Kopier USE AdventureWorks2022; GO SELECT TOP(10) PERCENT WITH TIES pp.FirstName, pp.LastName, ...
Specifying WITH TIES ensures that employees with salaries equal to the lowest salary returned (the last row) are also included in the result set, even if it exceeds 10 percent of employees.SQL نسخ USE AdventureWorks2022; GO SELECT TOP(10) PERCENT WITH TIES pp.FirstName, pp.Last...