1. CS 3630 Database Design and Implementation
Remove Test2 and Test1!

2. Assignment6-2
Any Questions?

3. Your Oracle Account UserName is the same as your UWP username
Followed
Not case sensitive
Initial Password: UserName3630 (all lower case)
Example: yangq3630
Password is case sensitive
Reset password required after the first login
Do Not Use Any Special Characters such

4. Remember Your Password!
to HelpDesk at from your UWP account if you forget your new password

5. Oracle Client SQL*Plus
All labs in Ullrich Hall
Not available from home or any other lab on campus

6. Structured Query Language (SQL)
One language for Relational Databases
ANSI Standard
Oracle: SQL*Plus
MS SQL Server: Transact-SQL
IBM DB2
MySQL
Sybase
...

7. Structured Query Language (SQL)
Case insensitive (like VB)
Free style (like C++ and Java)
Statement terminator – semicolon (like C++ and Java)
Programming Rule: Style
Each clause of a query on a separate line
When creating tables
Each field on a separate line
Each table constraint on a separate line

8. Structured Query Language (SQL)
DDL (Data Definition Language)
Create Table (user) ...
Drop Table (user) ...
Alter Table (user) ...
DML (Data Manipulation language)
Select * From Branch …
Insert into Branch ...
Update branch ...
Delete from BRANCH ...

9. Change Your Oracle Password inside Oracle
-- Oracle Command Prompt
SQL>
-- Change your password
-- Remember your new password!
SQL> Alter User yourUserName identified by newPassword;
-- Every ANSI SQL standard command ends with ;

10. Change Your Oracle Password inside Oracle
-- Change your password
SQL> password
Changing password for USERNAME
Old password:
New password:
Retype new password:
Password changed
SQL>

11. Oracle Data Types Char(size) fixed length string up to 2000 bytes
default is 1 byte
blanks are padded on right when fewer chars entered
Varchar2(size)
variable size string
must specify the limit (size)
Varchar(size)
same as Varchar2(size)
better to use Varchar2

12. Oracle Data Types Integer, int, smallint Float Date
Valid dates from 1-Jan-4712 B.C. to 31-Dec-4712 A.D.
Default format: DD-MON-YY
23-Mar-09
23-Mar-2009
Including time

13. Oracle Data Types Number(l, d) l: length (total) d: decimal digits
number (5, 2): largest value is
Decimal(l, d), Numeric(l, d)
same as number(l, d)
SQL standard
blob: binary large object, up to 4 GB
clob: character large object, up to 4 GB
raw(size): raw binary data, up to 2000 bytes
...

14. Create a Table SQL> Create Table Test1 ( C1 char(5) Primary Key,
C2 Varchar2(50),
C3 Integer,
C4 Date);

15. Show Table Schema SQL> Describe Test1 Or SQL> Desc Test1
Describe is a SQL*Plus command and no semicolon is required.

16. Insert Records Insert into Test1
Values (‘cs363', ‘s1', 44, ‘28-feb-12’);
Values (‘cs334', ‘s2', 45, ‘29-feb-2012’);
One record at a time!
Single quotes for string
Date is entered as string
in the default format

17. Retrieve Records
SQL> Select * From test1;
Two records

18. Log Out
SQL> exit

19. Log in
SQL>

20. Retrieve Records
SQL> Select * From test1;
How many records?

21. Command Commit DDL commands are sent back to server and executed there
DML commands are executed at client site
Use commit to send results back to server

22. Insert Records Insert into Test1
Values (‘cs363', ‘s1', 44, ‘28-feb-12’);
Values (‘cs334', ‘s2', 45, ‘29-feb-2012’);

23. Command Commit
SQL> Commit;

24. Log Out and Log In
SQL> Select * From test1;
How many records?

25. Update Records Update test1 Set c3 = 50 Where c1 = ‘cs363’;
-- Each clause on a separate line

26. Delete Records Delete from test1 Where c1 = ‘cs363’;
-- select to check
Delete from test1;
-- desc to check

27. Drop Table Drop table test1; Desc test1 -- to check ERROR:
ORA-04043: object test1 does not exist