![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
MySQL edit and update records including employee salary
The UPDATE command is used in MySQL to update records. With it, the SET command is used to set new values. Let us first create a table −
mysql> create table DemoTable ( EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, EmployeeName varchar(50), EmployeeSalary int ); Query OK, 0 rows affected (0.57 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(EmployeeName,EmployeeSalary) values('Chris',56780); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable(EmployeeName,EmployeeSalary) values('Robert',45670); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable(EmployeeName,EmployeeSalary) values('Mike',87654); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(EmployeeName,EmployeeSalary) values('David',34569); Query OK, 1 row affected (0.11 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+------------+--------------+----------------+ | EmployeeId | EmployeeName | EmployeeSalary | +------------+--------------+----------------+ | 1 | Chris | 56780 | | 2 | Robert | 45670 | | 3 | Mike | 87654 | | 4 | David | 34569 | +------------+--------------+----------------+ 4 rows in set (0.00 sec)
Following is the query to update records and set new values −
mysql> update DemoTable set EmployeeSalary=EmployeeSalary+12346; Query OK, 4 rows affected (0.14 sec) Rows matched: 4 Changed: 4 Warnings: 0
Let us check the table records −
mysql> select *from DemoTable;
This will produce the following output −
+------------+--------------+----------------+ | EmployeeId | EmployeeName | EmployeeSalary | +------------+--------------+----------------+ | 1 | Chris | 69126 | | 2 | Robert | 58016 | | 3 | Mike | 100000 | | 4 | David | 46915 | +------------+--------------+----------------+ 4 rows in set (0.00 sec)
Advertisements