09-02-2008old.ppt

CS 8630 Database Administration, Dr. Guimaraes

09-02-2008, MS-Access, QBE, Access/Oracle

ClassWill

Start Momentarily…

CS8630 Database AdministrationDr. Mario Guimaraes


Install/Launch Oracle:Another Interface

• To run one command at a time, Choose Go to Database Home Page from Start Menu (see very first picture above).

• Start Menu -> Programs -> Oracle 10g Express -> Go to Database Home Page


Oracle Express Home Page

Select the SQL command (third icon below)


Sql Command interface


TOAD

• http://www.toadsoft.com/lic_agree.html


View user_tables

TO CHECK if ALL TABLES were created• From the oracle prompt, type in

SQL>select table_name from user_tables;

You will see the tables customers, orders, products and agents


MS-Access and QBE


Launch MS-Access, Create a new File


Select Blank Database


Creating a Table


Defining Datatatypes


Defining Relationship


Editing Relationships


Creating a Form


Inserting Pictures


Database Utilities


Import/Export


Query-by-Example (QBE)

• Visual approach for accessing information in a database through use of query templates.

• Example values are entered into template to represent what access to database is to achieve, such as the answer to a query.

• Originally developed by IBM in 1970s [Zloof] and has proved so popular that QBE (or similar) is now provided by most DBMSs.

• When user constructs a QBE - in background, DBMS creates an equivalent SQL statement.


MS-Access – Blank Database


New DB - .MDB file


Introduction to Microsoft Access


SQL View (MS-Access Query)


New Query


Projection


Restriction


Restriction w/ multiple criteria


Join


Totals (Aggregate Functions)


Projecting Expressions


Specifying Criteria


Find Unmatched Query (Outer Join)


Creating a Table


Defining Datatatypes


Defining Relationship


Editing Relationships


Creating a Form


Inserting Pictures


Database Utilities


Connect MS-Access & Oracle

Do a search and find odbcad32.exe (ODBC Data Source program) or

Control Panel -> Administrative Tools -> Data Sources (ODBC)Then follow the instructions at

http://science.kennesaw.edu/~mguimara/3310/odbclab.zip

Click on the System DSN panel above

(second one from the left) and the add

button on the right of A Create New Data

Source window appears as shown in

Next slide.


Select Driver

Select the Microsoft ODBC for Oracle driver and click the Finish button


Define Server

A Microsoft ODBC for Oracle Setup window will appear as shown in Figure 3 below (from http://science.kennesaw.edu/~mguimara/3310/odbclab.zip) . For Data Source Name you can choose any name (OracleAccess, for example). For Server Name you choose the Oracle instance (or the service name in a multi-user environment). The other two parameters are optional. User Name is the Oracle user, but you should leave it blank, that way you can login as any user. Click okay and click okay again to save the ODBC Data source and exit.


Get External Data

• Launch MS-Access and select File Menu -> Get External Data -> Link (if you select import, you are simply copying the oracle tables to MS-Access)


Select File type


Select Data Source

• When the Select DataSource window appears (Figure 6), select the Machine Data Source tab and then select the Data Source you created.


Select PK

When you click the okay button, you will get a login window. Type in your Oracle user name and Password (Server name is the database instance name and should already come typed for you). You then should get a screen with tables which you can select. Select the tables you want link to next slide. Click OK button


Link Tables

• When you click the okay button (in previous slide), you will get a login window. Type in your Oracle user name and Password (Server name is the database instance name and should already come typed for you). You then should get a screen with tables which you can select. Select the tables you want link to (slide below).


Select PK

After you select the tables, make sure you also select the field you want to define as a primary key. Otherwise you will only be able to view data (and not modify).


See Linked Tables

• You will then be able to access the oracle tables as if they were MS-Access tables. However, since you chose the Link Option (not the import), you are actually modifying the Oracle Database.


Georgia Oracle User Group

• http://www.gouser.org/


Import/Export


End of Lecture

End Of

Today’s

Lecture.

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09-02-2008old.ppt