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Author:bmeyer

Browse Source 
Date:2008-12-07T14:11:46.000000Z


git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@126 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
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bmeyer
2008-12-07 14:11:46 +00:00
parent 6bf5091758
commit ee8b3324fc
2 changed files with 15 additions and 11 deletions
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24
documentation/current/solutions/database-access/eiffelstore/eiffelstore-tutorial/eiffelstore-interface-layer/database-connection.wiki
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@@ -3,11 +3,13 @@
[[Property:uuid|2cf2cb7c-e28d-5d06-b03e-e2b17c1f6879]]
* To connect to your database, you have to create a '''handle''': this handle actually links the interface classes with corresponding implementation classes mapped to your DBMS. This handle is implemented by the DATABASE_APPL class:
<code>
database_appl: DATABASE_APPL [ODBC]
-- Database handle.
...
create database_appl.login (a_name, a_psswd)
database_appl.set_base
database_appl: DATABASE_APPL [ODBC]
-- Database handle.
...
create database_appl.login (a_name, a_psswd)
database_appl.set_base
</code>
<br/>
@@ -20,11 +22,13 @@
* Once your handle is created, you have to create a session manager which will allow you to manage your database, specifically to establish connection, disconnect and also handle errors. The class <eiffel>DB_CONTROL</eiffel> enables your application to plainly control the functioning and status of your database and to request any information about it.
<code>
session_control: DB_CONTROL
-- Session control.
...
create session_control.make
session_control.connect
session_control: DB_CONTROL
-- Session control.
...
create session_control.make
session_control.connect
</code>
{{note|Take a look at the [[Database control|database control]] part to see how to use <eiffel>DB_CONTROL</eiffel> capabilities. }}