Joining 2 tables in oracle database using SQL

Question

I want to join 2 tables together before executing a statement.
problem is one is a table of users, who have userID's
and the othet table is a table of events that are owned by a userID, ie can have many events by same userID.
i want to retrieve forename and lastname from the users table, nd the event details from the event table, and put a name against each event rather than a userID, how can i do this?
note i want to extract EVERY SINGLE EVENT, and get the name of the user it is owned by via the userID
heres a example of a row
Table Users
| UserID | Forename | Surname |
| Y244850 | Jimmy | Conner |
| Y256738 | Mikey | Reeves |
Table Events
| UserID | Date | Type | Location |
| Y244850 | 07-Jan-01 | Holiday | Ibiza |
| Y244850 | 15-Dec-01 | Holiday | Jamaica |
------------------------------------------------

Answer 1

Well just exchange user_id with u.user_ud or l.user_id:
SQL> SELECT forename, surname, TO_CHAR(id) id,
TO_CHAR(start_date) start_date, TO_CHAR(end_date)
end_date, type, u.user_id, location FROM leave_details l,
user_details u WHERE l.user_id = u.user_id;
When you just say select user_id, the database doesn't know wich user_id to use. The one in details or in users...
(Even though you and me know its the same)
So just be spesific and choose one.
Sjur