Mysql Minus Operator
Mysql Minus Query return the calculated value from subtracting the maximum value and minimum value.
Query for creating table name Employee:
The Tutorial illustrate an example from 'Mysql Minus Query'. To understand and elaborate example we create a table 'employee' with required fieldnames and datatypes respectively.
mysql> CREATE TABLE Employee(
-> Empid int(10),
-> Empname varchar(60),
-> Salary int(90),
-> DOB date
-> );
Query OK, 0 rows affected (0.01 sec)
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Query for insertion of data in table:
The Query insert into is used to add the records and rows to the table 'Employee'.
mysql> INSERT INTO Employee (Empid,Empname,Salary,DOB) VALUES
-> (01,'Habib',2014,20041202),
-> (02,'Karan',4021,20030411),
-> (03,'Samia', 22,20080223),
-> (04,'Hui Ling', 25,20081015),
-> (05,'Yumie', 29,19990126);
Query OK, 5 rows affected (0.00 sec)
Records: 5 Duplicates: 0 Warnings: 0
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Query to view data inserted in table:
The Query select is used to return the records detail from table employee.
mysql> select * from employee; |
Output:-
+-------+----------+--------+------------+ | Empid | Empname | Salary | DOB | +-------+----------+--------+------------+ | 1 | Habib | 2014 | 2004-12-02 | | 2 | Karan | 4021 | 2003-04-11 | | 3 | Samia | 22 | 2008-02-23 | | 4 | Hui Ling | 25 | 2008-10-15 | | 5 | Yumie | 29 | 1999-01-26 | +-------+----------+--------+------------+ 5 rows in set (0.00 sec) |
Query to use minus operator to the data of the table:
The Query Mysql minus query is used to find the difference between the maximum salary and minimum salary as deducated salary fieldname from table employee.
mysql> select max(salary)-min(salary)as DeductedSalary from employee; +----------------+ | DeductedSalary | +----------------+ | 3999 | +----------------+ 1 row in set (0.00 sec) |