March 2001
Intermediate to advanced
640 pages
14h 9m
English
book
Sams Teach Yourself Transact-SQL in 21 Days, Second Edition
by Lowell Mauer, David Solomon, Bennett McEwan
Content preview from Sams Teach Yourself Transact-SQL in 21 Days, Second Edition
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Day 7
Quiz
| 1: | What is wrong with the following statement?
DELETE * FROM customer_demo |
| A1: | This statement should not be using the '*'. In addition, the FROM keyword is optional. The correct syntax of this statement is
DELETE FROM customer_demo Or DELETE customer_demo Remember that this would delete all the data in the table. |
| 2: | What is wrong with the following statement?
UPDATE customer_demo (
'John', 'smith', 34)
|
| A2: | Answer: This statement mixes the UPDATE command with the INSERT command. To UPDATE values into the customer_demo table, you use the following syntax for an update:
UPDATE customer_demoSET Fname = 'John',
Lname = 'smith'
age = 34And for an insert, the following syntax would be used: INSERT INTO customer_demo (Fname, Lname, Age) Values('John', ... |
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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.