October 2002
Beginner
864 pages
18h 41m
English
Content preview from Sams Teach Yourself SQL in 21 Days, Fourth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Exploring Common SQL Errors
This section describes many common errors that you will receive while executing all types of SQL statements. Most are simple and make you want to kick yourself on the hind side, whereas other seemingly obvious errors are misleading.
Table or View Does Not Exist
When you receive an error stating that the table you are trying to access does not exist, it seems obvious—for example,
SQL> @tables.sql SQL> spool tables.lst SQL> set echo on SQL> set feedback on SQL> set pagesize 1000 SQL> select owner|| '.' || table_name 2 from sys.dba_table 3 where owner = 'SYSTEM' 4 order by table_name 5 / from sys.dba_table * ERROR at line 2: ORA-00942: table or view does not exist SQL> spool off SQL> mysql> select * from jobs -> ; ERROR ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.