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SQL exercises on employee Database: Find the highest salary from all the employees

SQL employee Database: Exercise-90 with Solution

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90. From the following table, write a SQL query to find the highest salary. Return highest salary.

Sample table: employees


Sample Solution:

SELECT max(salary)
FROM employees;

Sample Output:

   max
---------
 6000.00
(1 row)

Relational Algebra Expression:

Relational Algebra Expression: Find the highest salary from all the employees.

Relational Algebra Tree:

Relational Algebra Tree: Find the highest salary from all the employees.

Practice Online


Sample Database: employee

employee database structure

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Previous: From the following table, write a SQL query to find those employees who work in the department 1001. Sort the result-set in ascending order by salary. Return employee ID, employee name, salary and department ID.
Next: From the following table, write a SQL query to find the average salary and average total remuneration (salary and commission) for each type of job. Return name, average salary and average total remuneration.

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SQL: Tips of the Day

SQL Server SELECT into existing table. 

INSERT INTO dbo.TABLETWO
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:

INSERT INTO dbo.TABLETWO
  (col1, col2)
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

Database: SQL Server

Ref: https://bit.ly/3y6tpA3