Advertisement: Over 100,000 Jobs Worldwide. Click here to find one for you.

MySQL FAQs
FAQs Categories
Client Server Commands
Database Structure
Table Types or Storage Engines
Indexes
SQL Statements
Table Joins
Funtions and Operators
Tricky Select Queries
Speed Up Queries
Data Back Up
General Questions
Errors


http://www.careermidway.com
 
Home / Database Structure / Tables / Question No: 84

How to change data type of an existing column?

I want to change data type of an existing column of the table. How to change data type of the column from varchar to char?

Answer No: 84

This can be changed using ALTER statement. Take an example:
ALTER TABLE `buyers` CHANGE  `first_name` `first_name` CHAR(19);

Related MySQL FAQs to the Above FAQ

How-to-create-table-in-MySQL How to create table in MySQL?

How-to-create-table-based-on-existing-tables How to create table based on existing tables?

What-is-temporary-table-and-how-to-create-it-in-MySQL What is temporary table and how to create it in MySQL?

How-to-describe-a-table-in-MySQL How to describe a table in MySQL?

How-to-renaming-a-table-in-MySQL How to renaming a table in MySQL?

How-to-specify-multiple-alterations-for-a-table How to specify multiple alterations for a table?

How-to-get-table-metadata How to get table metadata?

How-to-add-new-column-into-an-existing-table-in-MySQL How to add new column into an existing table in MySQL?

How-to-add-a-new-AUTO_INCREMENT-field-to-an-existing-table How to add a new AUTO_INCREMENT field to an existing table?

How-to-drop-a-column-from-the-existing-table How to drop a column from the existing table?

How-to-drop-all-existing-tables-in-one-go How to drop all existing tables in one go?

How-to-get-columns-of-an-existing-table-in-MySQL How to get columns of an existing table in MySQL?

How-to-delete-table-records How to delete table records?

How-to-set-AUTO_INCREMENT-value-other-than-1-in-MySQL How to set AUTO_INCREMENT value other than 1 in MySQL?

How-to-get-copy-of-table-structure-in-MySQL-using-query How to get copy of table structure in MySQL using query?

How-to-get-constraints-or-keys-of-the-existing-table How to get constraints or keys of the existing table?
About SiteAbout FAQsAffiliates and Sponsors
© 2007 - 2010  www.mysqlfaqs.net
All rights reserved. The site is owned and operated by Mr. Javed Bhatti - Pakistan.