09-02-2008, MS-Access, QBE, Access/Oracle CS8630 Database Administration Dr. Mario Guimaraes Class Will Start Momentarily…

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 An alternative to using the SQL command prompt is go to the Database Home page from the Start Menu. Select Start Menu, then Programs, then Oracle 10g Express then 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

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

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.

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.

Import/Export

Georgia Oracle User Group http://www.gouser.org/

End of Lecture End Of Today’s Lecture.