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
How to add column values in MySQL without using aggregate function?
You can add column values without using aggregate function like sum(). For that, the syntax is as follows −
SELECT *,(yourColumnName1+yourColumnName2+yourColumnName3,....N) as anyVariableName from yourTableName;
To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table AddingColumnDemo -> ( -> StudentId int, -> StudentName varchar(20), -> MathMarks int, -> PhysicsMarks int, -> ChemistryMarks int -> ); Query OK, 0 rows affected (0.82 sec)
Insert records in the table using insert command. The query is as follows −
mysql> insert into AddingColumnDemo values(1,'John',35,45,76); Query OK, 1 row affected (0.25 sec) mysql> insert into AddingColumnDemo values(2,'Bob',67,76,88); Query OK, 1 row affected (0.19 sec) mysql> insert into AddingColumnDemo values(3,'Carol',45,56,43); Query OK, 1 row affected (0.16 sec) mysql> insert into AddingColumnDemo values(4,'Mike',82,75,71); Query OK, 1 row affected (0.21 sec) mysql> insert into AddingColumnDemo values(5,'Sam',92,89,88); Query OK, 1 row affected (0.23 sec)
Display all records from the table using select statement −
mysql> select *from AddingColumnDemo;
The following is the output displaying the records of the table −
+-----------+-------------+-----------+--------------+----------------+ | StudentId | StudentName | MathMarks | PhysicsMarks | ChemistryMarks | +-----------+-------------+-----------+--------------+----------------+ | 1 | John | 35 | 45 | 76 | | 2 | Bob | 67 | 76 | 88 | | 3 | Carol | 45 | 56 | 43 | | 4 | Mike | 82 | 75 | 71 | | 5 | Sam | 92 | 89 | 88 | +-----------+-------------+-----------+--------------+----------------+ 5 rows in set (0.00 sec)
Let us now implement the query to add column values in MySQL −
mysql> select *,(MathMarks+PhysicsMarks+ChemistryMarks) as TotalResult from AddingColumnDemo;
The following is the output displaying the sum of column values in TotalResult column −
+-----------+-------------+-----------+--------------+----------------+-------------+ | StudentId | StudentName | MathMarks | PhysicsMarks | ChemistryMarks | TotalResult | +-----------+-------------+-----------+--------------+----------------+-------------+ | 1 | John | 35 | 45 | 76 | 156 | | 2 | Bob | 67 | 76 | 88 | 231 | | 3 | Carol | 45 | 56 | 43 | 144 | | 4 | Mike | 82 | 75 | 71 | 228 | | 5 | Sam | 92 | 89 | 88 | 269 | +-----------+-------------+-----------+--------------+----------------+-------------+ 5 rows in set (0.00 sec)
Updated on: 30-Jul-2019
294 Views
Advertisements