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A schema is a collection of named objects; it provides a way to group those objects logically. A schema is also a name qualifier; it provides a way to use the same natural name for several objects, and to prevent ambiguous references to those objects; for example, the schema names ’INTERNAL’ and ’EXTERNAL’ make it easy to distinguish two different SALES tables (INTERNAL.SALES, EXTERNAL.SALES).

Schemas also enable multiple applications to store data in a single database without encountering namespace collisions.

The sections below describe each of these actions in detail.

New schemas are created within Create Schema Wizard. In order to run the wizard you should either

•	select the Object \| Create Database Object... main menu item;

•	select the Schema icon in the Create Database Object dialog

•	select the Schemas list or any object from that list in the explorer tree;

•	select the Create New Schema... item from the popup menu

•	open the database in Database Editor and the Schemas tab there;

•	press the Insert key or select the Create New Schema item from the popup menu (alternatively, you may use the corresponding link of the Navigation Bar).

To create a new schema with the same properties as one of the existing schemas has:

•	select the Object \| Duplicate Database Object... main menu item;

•	follow the instructions of Duplicate Object Wizard.

Schemas are edited within Schema Editor. In order to run the editor you should either

•	select the schema for editing in the explorer tree (type the first letters of the schema name for quick search);

•	select the Edit Schema... item from the popup menu

•	open the database in Database Editor and the Schemas tab there;

•	select the schema to edit;

•	press the Enter key or select the Edit Schema item from the popup menu (alternatively, you may use the corresponding link of the Navigation Bar).

You can change the name of the schema using the Rename Schema dialog. To open the dialog you should either

•	select the schema to rename in the explorer tree;

•	select the Rename Schema item from the popup menu

•	open the database in Database Editor and the Schemas tab there;

•	select the schema to rename;

•	select the Rename Schema item from the popup menu (alternatively, you may use the corresponding link of the Navigation Bar).

To drop a schema:

•	select the schema to drop in the explorer tree;

•	select the Drop Schema item from popup menu

•	open the database in Database Editor and the Schemas tab there;

•	select the schema to drop;

•	press the Delete key or select the Drop Schema item from the popup menu (alternatively, you may use the corresponding link of the Navigation Bar)

and confirm dropping in the dialog window.