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136 lines
5.4 KiB
ReStructuredText
136 lines
5.4 KiB
ReStructuredText
.. _database_dialog:
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************************
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`Database Dialog`:index:
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************************
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Use the *Database* dialog to define or modify a database. To create a database,
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you must be a database superuser or have the CREATE privilege.
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The *Database* dialog organizes the development of a database through the
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following dialog tabs: *General*, *Definition*, *Security*, and *Parameters*.
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The *SQL* tab displays the SQL code generated by dialog selections.
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.. image:: images/database_general.png
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:alt: Database dialog general tab
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:align: center
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Use the fields in the *General* tab to identify the database:
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* Use the *Database* field to add a descriptive name for the database. The name
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will be displayed in the *pgAdmin* tree control.
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* Select the owner of the database from the drop-down listbox in the *Owner*
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field.
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* Store notes about the database in the *Comment* field.
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Click the *Definition* tab to continue.
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.. image:: images/database_definition.png
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:alt: Database dialog definition tab
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:align: center
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Use the *Definition* tab to set properties for the database:
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* Select a character set from the drop-down listbox in the *Encoding* field.
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The default is *UTF8*.
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* Select a template from the drop-down listbox in the *Template* field. If you
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do not specify a template, the database will use template1.
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* Select a tablespace from the drop-down listbox in the *Tablespace* field. The
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selected tablespace will be the default tablespace used to contain database
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objects.
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* Select the collation order from the drop-down listbox in the *Collation* field.
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* Select the character classification from the drop-down listbox in the
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*Character Type* field. This affects the categorization of characters, e.g.
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lower, upper and digit. The default, or a blank field, uses the character
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classification of the template database.
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* Specify a connection limit in the *Connection Limit* field to configure the
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maximum number of connection requests. The default value (*-1*) allows
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unlimited connections to the database.
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Click the *Security* tab to continue.
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.. image:: images/database_security.png
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:alt: Database dialog security tab
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:align: center
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Use the *Security* tab to assign privileges and define security labels.
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Use the *Privileges* panel to assign privileges to a role. Click the *Add* icon
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(+) to set privileges for database objects:
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* Select the name of the role from the drop-down listbox in the *Grantee* field.
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* Click inside the *Privileges* field. Check the boxes to the left of one or
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more privileges to grant the selected privilege to the specified user.
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* The current user, who is the default grantor for granting the privilege, is displayed in the *Grantor* field.
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Click add to set additional privileges; to discard a privilege, click the trash
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icon to the left of the row and confirm deletion in the *Delete Row* popup.
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Use the *Security Labels* panel to define security labels applied to the
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database. Click the *Add* icon (+) to add each security label selection:
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* Specify a security label provider in the *Provider* field. The named provider
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must be loaded and must consent to the proposed labeling operation.
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* Specify a a security label in the *Security Label* field. The meaning of a
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given label is at the discretion of the label provider. PostgreSQL places no
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restrictions on whether or how a label provider must interpret security
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labels; it merely provides a mechanism for storing them.
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To discard a security label, click the trash icon to the left of the row and
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confirm deletion in the *Delete Row* popup.
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Click the *Parameters* tab to continue.
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.. image:: images/database_parameters.png
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:alt: Database dialog parameters tab
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:align: center
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Use the *Parameters* tab to set parameters for the database. Click the *Add*
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icon (+) to add each parameter:
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* Use the drop-down listbox in the *Name* field to select a parameter.
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* Use the *Value* field to set a value for the parameter.
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* Use the drop-down listbox next to *Role* to select a role to which the
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parameter setting specified will apply.
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Follow these steps to add additional parameter value definitions; to discard a
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parameter, click the trash icon to the left of the row and confirm deletion in
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the *Delete Row* popup.
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Click the *Advanced* tab to continue.
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.. image:: images/database_advanced.png
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:alt: Database dialog advanced tab
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:align: center
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Use the *Advanced* tab to set advanced parameters for the database.
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* Use *Schema restriction* field to provide a SQL restriction that will be used
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against the pg_namespace table to limit the schemas that you see.
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For example, you might enter: *public* so that only *public* are shown in
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the pgAdmin browser.Separate entries with a comma or tab as you type.
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Click the *SQL* tab to continue.
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Your entries in the *Database* dialog generate a SQL command (see an example
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below). Use the *SQL* tab for review; revisit or switch tabs to make any changes
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to the SQL command.
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Example
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*******
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The following is an example of the sql command generated by user selections in
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the *Database* dialog:
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.. image:: images/database_sql.png
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:alt: Database dialog sql tab
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:align: center
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The example creates a database named *hr* that is owned by *postgres*. It
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allows unlimited connections, and is available to all authenticated users.
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* Click the *Info* button (i) to access online help.
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* Click the *Save* button to save work.
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* Click the *Close* button to exit without saving work.
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* Click the *Reset* button to restore configuration parameters.
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