GO Part 1

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GO Part 1

Kenneth.Fisher

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September 6, 2012 at 10:38 pm

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Comments posted to this topic are about the item GO Part 1
Kenneth FisherI was once offered a wizards hat but it got in the way of my dunce cap.--------------------------------------------------------------------------------For better, quicker answers on T-SQL questions, click on the following... http://www.sqlservercentral.com/articles/Best+Practices/61537/[/url]For better answers on performance questions, click on the following... http://www.sqlservercentral.com/articles/SQLServerCentral/66909/[/url]Link to my Blog Post --> www.SQLStudies.com[/url]
September 7, 2012 at 3:30 am

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Raghavendra Mudugal SSChampion Points: 10658 More actions · Answer 1

Awesome. 🙂 thank you Kenneth.

1. it will insert 1 record - FROM INSERT INTO

2. it will insert 1 record - But the count in table is 2 - from INSERT..SELECT

3. Iteration1- Inserts 2 records - the count is 4

4. Iteration2- Inserts 4 records - the count is 8

5. Iteration3- Inserts 8 records - the count is 16

6. Iteration4- Inserts 16 records - the count is 32

AND

7. Iteration5- Inserts 32 records - the count is 64

Now this is where I went wrong, actually the #2's GO is the valid first iteration, so it stops at #6 which actually completes 5 iterations. (#7 is not valid)

(so simple and yet I messed up :w00t:)

(Just wanted to say Thank you to all, this is been the best learning experience apart from the regular routine :-))

ww; Raghu
--
The first and the hardest SQL statement I have wrote- "select * from customers" - and I was happy and felt smart.

tommyh SSCertifiable Points: 6302 More actions · Answer 2

Worthless question because of the fact that you add something that doesnt really relate to the question. The key part in the question is the "GO 5" part. And by adding the select from the table in the insert you make the "GO 5" part secondary.

/T

Koen Verbeeck SSC Guru Points: 259105 More actions · Answer 3

tommyh (9/6/2012)
Worthless question because of the fact that you add something that doesnt really relate to the question. The key part in the question is the "GO 5" part. And by adding the select from the table in the insert you make the "GO 5" part secondary.
/T

Why does it make GO 5 secondary?

The GO 5 combined with the SELECT makes the insert a power of two, which is a nice twist on the question. The question still deals with the subject: a batch is repeated 5 times because it's followed by GO 5.

@kenneth: very nice question to end the week.

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derek.colley SSCrazy Eights Points: 8040 More actions · Answer 4

Good question, thanks, and how annoying that I couldn't spot the twist until it was too late.

Lesson: Never answer QOTW before 7am.

---

Note to developers:
CAST(SUBSTRING(CAST(FLOOR(NULLIF(ISNULL(COALESCE(1,NULL),NULL),NULL)) AS CHAR(1)),1,1) AS INT) == 1
So why complicate your code AND MAKE MY JOB HARDER??!:crazy:

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TomThomson SSC Guru Points: 104773 More actions · Answer 5

Good question.

Two days in a row now answering early morning has proved that I shouldn't do it. Yesterday I couldn't add. Today I can't multiply (or at least I get 1*2*2*2*2*2 = 6). Evidently my brain doesn't start functioning until it has been fed and watered. :doze:

Tom

TomThomson SSC Guru Points: 104773 More actions · Answer 6

L' Eomot Inversé (9/7/2012)
Good question.
Two days in a row now answering early morning has proved that I shouldn't do it. Yesterday I couldn't add. Today I can't multiply (or at least I get 1*2*2*2*2*2 = 6). Evidently my brain doesn't start functioning until it has been fed and watered. :doze:

Edit: I've just noticed a failure to normalise even to 1 NF in my comment. Two days in a row is clearly a repeating group. :rolleyes:

Tom

Stuart Davies SSCoach Points: 19505 More actions · Answer 7

Good question

Nearly missed the 5 after the last go - then had to remember why it was significant

Got my point though

-------------------------------Posting Data Etiquette - Jeff Moden [/url]Smart way to ask a question
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DugyC Hall of Fame Points: 3804 More actions · Answer 8

What a fun question, thanks.

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Michael Lysons SSCertifiable Points: 6491 More actions · Answer 9

Nice question.

I can see both sides of the discussion above re. whether it was "worthless" or not. I do think the head-scratching (for me, at least) over how many records would be in the table takes away from whether "GO x" is valid or not.

Then again, "Is GO x valid T-SQL?" would be a boring question.

🙂

Michael Lysons SSCertifiable Points: 6491 More actions · Answer 10

DugyC (9/7/2012)
What a fun question, thanks.

Actually, yeah it was - well said 🙂

Koen Verbeeck SSC Guru Points: 259105 More actions · Answer 11

Michael Lysons (9/7/2012)
Then again, "Is GO x valid T-SQL?" would be a boring question.
🙂

And the answer is surprisingly: no.

GO is not a TSQL statement, but a batch terminator recognised by sqlcmd, osql and SSMS.

GO (Transact-SQL)

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My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP

Gazareth One Orange Chip Points: 27737 More actions · Answer 12

L' Eomot Inversé (9/7/2012)
1*2*2*2*2*2 = 6

It does equal 6! At least, that's my excuse.

Raghavendra Mudugal SSChampion Points: 10658 More actions · Answer 13

Michael Lysons (9/7/2012)
DugyC (9/7/2012)
What a fun question, thanks.
Actually, yeah it was - well said 🙂

+1

ww; Raghu
--
The first and the hardest SQL statement I have wrote- "select * from customers" - and I was happy and felt smart.