Oracle

Main Page >> Oracle and SQL

Oracle 12c Version 12.1.0.1.0

The purpose of this handout is to introduce using SQL from the Oracle database management system (DBMS). It is intended to be supplemented by a lecture course.

Commands to try out are in a box, for example:

SELECT * FROM DEPT;

There will be exercises for you to try out too. In most cases you will be given the results you are aiming for. These will also be presented in a blue font.

For example, the results for Exercise 1.1 are:

 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 CNO                                                NUMBER(4)
 ORDERDATE                                          DATE
 NAME                                               VARCHAR2(15)
 CITY                                               VARCHAR2(15)
 COUNTRY                                            VARCHAR2(15)
 PNO                                                NUMBER(4)
 DESCRIPTION                                        VARCHAR2(20)
 QTY                                                NUMBER(4)

Things to note:

• when running the commands in Oracle you will need to press RETURN after each line.
• the order of the results may differ from yours. The key thing is that you have the same rows, but not necessarily in the same order.

Menu options (Windows) that involve more than one step will be shown as a sequence, separated by the greater than symbol (>), for example:

 File>Open

Means select File from the main Window menu then Open from the submenu

• Workbook
• Useful URLs

---

If you spot any errors in this workbook, please inform the Oracle DBA: Mary Garvey