SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


looping thru views


looping thru views

Author
Message
Sean Lange
Sean Lange
SSC Guru
SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)

Group: General Forum Members
Points: 148917 Visits: 18575
Alan.B (3/14/2013)
kevaburg (3/14/2013)
What about using:

exec sp_MSforeachview 'select top 1 from ?'


That is not a stored proc that comes from SQL Server. If you can run this:

exec sp_MSforeachview 'select top 1 from ?



Its because someone created that locally.


LOL a quick search revealed this: http://www.sqlservercentral.com/scripts/T-SQL+Aids/30373/

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
kevaburg
kevaburg
SSChampion
SSChampion (10K reputation)SSChampion (10K reputation)SSChampion (10K reputation)SSChampion (10K reputation)SSChampion (10K reputation)SSChampion (10K reputation)SSChampion (10K reputation)SSChampion (10K reputation)

Group: General Forum Members
Points: 10657 Visits: 1211
Oooooops! It would appear I am talking out of holes normally reserved for other purposes!

That is exactly the procedure I saw but I didn't read it properly! I take back what I said but it would be a nice procedure to have I think.....

On a serious note though, I have noticed that Intellisense finds sp_MSforeachtable and sp_MSforeachdb. Does that mean they are both documented and supported procedures. If so then my job has suddenly become a little simpler!
Sean Lange
Sean Lange
SSC Guru
SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)

Group: General Forum Members
Points: 148917 Visits: 18575
kevaburg (3/14/2013)
Oooooops! It would appear I am talking out of holes normally reserved for other purposes!

That is exactly the procedure I saw but I didn't read it properly! I take back what I said but it would be a nice procedure to have I think.....

On a serious note though, I have noticed that Intellisense finds sp_MSforeachtable and sp_MSforeachdb. Does that mean they are both documented and supported procedures. If so then my job has suddenly become a little simpler!


Both of those you mentioned are available. However they are both undocumented and unsupported. You can find lots of places online that discuss them and you can always crack them open yourself to have a look.

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
Jeff Moden
Jeff Moden
SSC Guru
SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)

Group: General Forum Members
Points: 508635 Visits: 44285
Alan.B (3/7/2013)
Cursors, loops and dSQL fall under the last choice column but this is one of those cases...

For tables you would do this:

EXEC sp_MSforeachtable'SELECT TOP 1 * FROM ?'




BWAA-HAAA!!!! Oh, be careful now, Alan. You've just stated perhaps one of the greatest oxymorons of them all. Have you ever looked under the hood of sp_MSForEachTable? It's a monstorous LOOP! ;-)

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
Sean Lange
Sean Lange
SSC Guru
SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)

Group: General Forum Members
Points: 148917 Visits: 18575
Jeff Moden (3/14/2013)
Alan.B (3/7/2013)
Cursors, loops and dSQL fall under the last choice column but this is one of those cases...

For tables you would do this:

EXEC sp_MSforeachtable'SELECT TOP 1 * FROM ?'




BWAA-HAAA!!!! Oh, be careful now, Alan. You've just stated perhaps one of the greatest oxymorons of them all. Have you ever looked under the hood of sp_MSForEachTable? It's a monstorous LOOP! ;-)


Actually Jeff he said that cursors and loops fall under the last category but that this IS one time it is acceptable.

I would of course recommend that anybody who wants to use any of the sp_MSForEach procs to crack them open and look at what they are doing.

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
Jeff Moden
Jeff Moden
SSC Guru
SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)SSC Guru (508K reputation)

Group: General Forum Members
Points: 508635 Visits: 44285
I suppose you could take what was said two ways. I may have taken it the wrong way.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
Sean Lange
Sean Lange
SSC Guru
SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)SSC Guru (148K reputation)

Group: General Forum Members
Points: 148917 Visits: 18575
Jeff Moden (3/15/2013)
I suppose you could take what was said two ways. I may have taken it the wrong way.


It is like I always tell me wife...

"If there are two ways to take something and one of them makes you mad, I meant it the other way." :-D

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
Alan Burstein
Alan Burstein
SSC-Dedicated
SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)

Group: General Forum Members
Points: 32524 Visits: 8578
Jeff Moden (3/14/2013)
Alan.B (3/7/2013)
Cursors, loops and dSQL fall under the last choice column but this is one of those cases...

For tables you would do this:

EXEC sp_MSforeachtable'SELECT TOP 1 * FROM ?'




BWAA-HAAA!!!! Oh, be careful now, Alan. You've just stated perhaps one of the greatest oxymorons of them all. Have you ever looked under the hood of sp_MSForEachTable? It's a monstorous LOOP! ;-)


Ok, ok... This is as set-based as I can get....


CREATE PROC dbo.top1FromSomething (@obj varchar(12)='BASE TABLE') --Options: 'BASE TABLE' OR 'VIEW'
AS
SET NOCOUNT ON;

DECLARE @sql VARCHAR(8000)

SELECT @sql=
COALESCE(@sql,'')+
CAST('SELECT TOP 1 * FROM ['+
TABLE_CATALOG+'].['+TABLE_SCHEMA+'].['+TABLE_NAME+']'+CHAR(13) AS VARCHAR(8000))
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE=@obj

PRINT 'These queries were executed:'+CHAR(13)+REPLICATE('-',40)+CHAR(13)+@sql
EXEC(@sql)
GO

EXEC top1FromSomething 'VIEW';



Edit: tiny code change.

-- Alan Burstein


Helpful links:

Best practices for getting help on SQLServerCentral -- Jeff Moden
How to Post Performance Problems -- Gail Shaw

Nasty fast set-based string manipulation functions:
For splitting strings try DelimitedSplit8K or DelimitedSplit8K_LEAD (SQL Server 2012+)
To split strings based on patterns try PatternSplitCM
Need to clean or transform a string? try NGrams, PatExclude8K, PatReplace8K, DigitsOnlyEE, or Translate8K

I cant stress enough the importance of switching from a sequential files mindset to set-based thinking. After you make the switch, you can spend your time tuning and optimizing your queries instead of maintaining lengthy, poor-performing code. -- Itzik Ben-Gan 2001

Alan Burstein
Alan Burstein
SSC-Dedicated
SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)SSC-Dedicated (32K reputation)

Group: General Forum Members
Points: 32524 Visits: 8578
Jeff Moden (3/15/2013)
I suppose you could take what was said two ways. I may have taken it the wrong way.


I was not 100% clear in what I said. I was implying that sp_msforeach(table | Db) falls under the category of dsql and is, therefore not the best option. The newer code I posted still uses dsql but is free of any loops, cursors, RBAR (Hoo-uh).

-- Alan Burstein


Helpful links:

Best practices for getting help on SQLServerCentral -- Jeff Moden
How to Post Performance Problems -- Gail Shaw

Nasty fast set-based string manipulation functions:
For splitting strings try DelimitedSplit8K or DelimitedSplit8K_LEAD (SQL Server 2012+)
To split strings based on patterns try PatternSplitCM
Need to clean or transform a string? try NGrams, PatExclude8K, PatReplace8K, DigitsOnlyEE, or Translate8K

I cant stress enough the importance of switching from a sequential files mindset to set-based thinking. After you make the switch, you can spend your time tuning and optimizing your queries instead of maintaining lengthy, poor-performing code. -- Itzik Ben-Gan 2001

Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum








































































































































































SQLServerCentral


Search