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Articles related to alter database

Data Definition Language - Create, Use, Alter, Drop - Databases
The Data Definition Language (DDL) is used to create and destroy databases and database objects. These commands will primarily be used by database ...
Access Controls in SQL - Granting Permissions - Databases - About ...
These can be either table-level permissions (such as SELECT, INSERT, UPDATE and DELETE) or database permissions (such as CREATE TABLE, ALTER ...
Modifying Tables - Databases - About.com
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 ...
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.
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" ...
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  ...
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.
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 ...
UNIQUE Constraints in Microsoft SQL Server - Databases - About.com
ALTER TABLE ADD CONSTRAINT ... Expand the Tables folder of the database where you wish to create the constraint.
Primary Key Constraints in SQL Server 2012 - Databases - About.com
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.
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