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
Set all the columns of a MySQL table to a particular value with a single query
Let us first create a table −
mysql> create table DemoTable ( ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(40), ClientAge int, ClientCountryName varchar(40) ); Query OK, 0 rows affected (0.57 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(ClientName,ClientAge,ClientCountryName) values('Chris',25,'US');
Query OK, 1 row affected (0.33 sec)
mysql> insert into DemoTable(ClientName,ClientAge,ClientCountryName) values('Bob',55,'UK');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable(ClientName,ClientAge,ClientCountryName) values('David',45,'AUS');
Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----------+------------+-----------+-------------------+ | ClientId | ClientName | ClientAge | ClientCountryName | +----------+------------+-----------+-------------------+ | 1 | Chris | 25 | US | | 2 | Bob | 55 | UK | | 3 | David | 45 | AUS | +----------+------------+-----------+-------------------+ 3 rows in set (0.00 sec)
Here is the query to set all the columns of a MySQL table to a particular value −
mysql> update DemoTable set ClientName='Sam',ClientAge=48,ClientCountryName='AUS' where ClientId=2; Query OK, 1 row affected (0.22 sec) Rows matched : 1 Changed : 1 Warnings : 0
Let us check the table records once again −
mysql> select *from DemoTable;
This will produce the following output −
+----------+------------+-----------+-------------------+ | ClientId | ClientName | ClientAge | ClientCountryName | +----------+------------+-----------+-------------------+ | 1 | Chris | 25 | US | | 2 | Sam | 48 | AUS | | 3 | David | 45 | AUS | +----------+------------+-----------+-------------------+ 3 rows in set (0.00 sec)
Updated on: 10-Oct-2019
70 Views
Advertisements