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Articles related to alter database

Data Definition Language - Create, Use, Alter, Drop - About Databases
The Data Definition Language (DDL) is used to create and destroy databases and database objects. These commands will primarily be used by database ...
http://databases.about.com/od/sql/a/sqlfundamentals_2.htm
Access Controls in SQL - Granting Permissions - About Databases
These can be either table-level permissions (such as SELECT, INSERT, UPDATE and DELETE) or database permissions (such as CREATE TABLE, ALTER ...
http://databases.about.com/od/security/a/accesscontrols_2.htm
Modifying Tables - About Databases
We can use the ALTER TABLE command to add this attribute to our existing database. We want to store the salary as an integer value. The syntax is quite similar ...
http://databases.about.com/od/sql/a/tables_3.htm
Alter Table in MySQL Command Examples - PHP/MySQL - About.com
How to use the MySQL alter table command, and what to combine it with to do different things to your database.
http://php.about.com/od/learnmysql/p/alter_table.htm
SQL Drop Column Command - PHP/ MySQL
How to remove (drop) a column from a table using MySQL with your SQL database. ... alter table icecream drop column flavor; This removes the column " flavor" ...
http://php.about.com/od/mysqlcommands/g/drop_column.htm
Change a Column Name in MySQL - PHP/MySQL - About.com
How to change the name of a column in a MySQL database. ... You rename a column in MySQL using alter table and change. Let's say our column is currently  ...
http://php.about.com/od/learnmysql/qt/change_column_name.htm
Adding a Column in MySQL With the Add Column Command
It is written as alter table add column [new column name] [type]; ... a Column in a MYSQL Database · How to change the size of a MySQL column.
http://php.about.com/od/mysqlcommands/g/sql_add_column.htm
Drop Column Command in MySQL Database
Nov 15, 2006 ... You can remove an entire column from a MySQL database by using the drop column command. This also removes all data from the column ...
http://php.about.com/b/2006/11/15/drop-column-in-mysql.htm
Changing the size of a MySQL Column - PHP/MySQL - About.com
After you make a MySQL database you can alter the contents at any time. This includes changing the size of a column after it's created. If you realize after the fact ...
http://php.about.com/od/learnmysql/qt/How-To-Change-The-Size-Of-A-Mysql-Column.htm
Primary Key Constraints in SQL Server 2012 - About Databases
Every database table should have a primary key that uniquely identifies each row in ... by using the ADD CONSTRAINT clause with an ALTER TABLE statement.
http://databases.about.com/library/blprimary_keys_sql_server_2012.htm
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