Write a SQL query tofind employees who earn the top three salaries in each of the department. For the above tables, your SQL query should return the following rows. +---+---+---+ | Department | Employee | Salary | +---+---+---+ | IT | Max | 90000 | | IT | Randy | 850...
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...
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 (order of rows does not matter). 三、参考SQL 方法一:窗口函数——dense_rank() 1 select 2 as Department, 3 as Employee, ...
Limits the rows returned in a query result set to a specified number of rows or percentage of rows in SQL Server. When you use TOP with the ORDER BY clause, the result set is limited to the first n number of ordered rows. Otherwise, TOP returns the first n number of rows in an und...
Write a SQL query to find the 10th highest employee salary from an Employee table. Explain your answer. (Note: You may assume that there are at least 10 records in the Employee table.) View answer This can be done as follows: SELECT TOP (1) Salary FROM ( SELECT DISTINCT TOP (10) Sa...
SQL, pronounced as “S-Q-L” or “sequel,” stands for Structured Query Language. It is a domain-specific language (DSL), a computer language specialized to a particular application domain, such as HTML for web pages. DSL is in contrast to a general-purpose language (GPL), which is bro...
CREATE TABLE employees_temp AS SELECT * FROM employees; BEGIN UPDATE employees_temp SET salary = salary * 1.05 WHERE salary < 5000; DBMS_OUTPUT.PUT_LINE('Updated ' || SQL%ROWCOUNT || ' salaries.'); END; / 例6-3に示すように、リテラル値またはその他のプログラミング言語のバイン...
This is a dead-simple query in the UDF, but even so, it gets expanded out in a non-trivial manner. I’m still trying to sort out what is happening this branch of the query plan, but I think (though I’m far from sure) that it’s essentially pre-computing the “TOP 1” values...
Set 3 - SQL Interview Questions and Answers SQL Interview Questions for Experienced Professionals Scenario-Based SQL Interview Questions The Bottom Line Top SQL Interview Questions List for 2025 SQL is a common language for Structured Query Language, which is based on general English, whereas MySQL ...
Reference Types:Pointers to database objects, likeREF CURSORfor dynamic query processing. 4. What are the basic control structures in PL/SQL? PL/SQL includes several control structures that help manage the flow of a program: Loops:These includeLOOP,FOR LOOP, andWHILE LOOP, allowing repetitive ...