Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


quotation and punctuation in sql server


quotation and punctuation in sql server

Author
Message
r_slot
r_slot
SSC Journeyman
SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)

Group: General Forum Members
Points: 79 Visits: 176
Does anyone have some rules by which quotation in SQL Server works?
An example:
Select Year,
Max(Case When Name='Tour de France'Then Coureur End) As [Tour de France]
Max(Case When Name='Giro d''Italia' Then Coureur End) As [ Giro d'Italia]
etc.

I don't understand the punctuation in 'Giro d''Italia': it is Giro d' and Italia so one would expect Giro d' + Italia or 'Giro d'' + 'Italia', but not 'Giro d''Italia.
Perhaps someone has any ideas about this phenomenon.

Grz,

Robert
bitbucket-25253
bitbucket-25253
SSCertifiable
SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)

Group: General Forum Members
Points: 5695 Visits: 25280
Here is an excellent read on the subject:

http://msdn.microsoft.com/en-us/library/aa259228(v=sql.80).aspx

Scroll down a little more than half the page to see examples.

Here is a quick example:
SET QUOTED_IDENTIFIER OFF 
DECLARE @Toff VARCHAR(100)
SET @Toff = 'I''ve got a lovely bunch of cocnuts'
SELECT @Toff


Result:
I've got a lovely bunch of cocnuts

edited to take result out of code block

If everything seems to be going well, you have obviously overlooked something.

Ron

Please help us, help you -before posting a question please read

Before posting a performance problem please read
Joie Andrew
Joie Andrew
SSC Eights!
SSC Eights! (973 reputation)SSC Eights! (973 reputation)SSC Eights! (973 reputation)SSC Eights! (973 reputation)SSC Eights! (973 reputation)SSC Eights! (973 reputation)SSC Eights! (973 reputation)SSC Eights! (973 reputation)

Group: General Forum Members
Points: 973 Visits: 1916
This is because quotation marks in SQL are done in pairs. In order to have a single quotation mark show up in your select statement it has to be escaped. The way to do this in T-SQL is by typing two single quotes.

Joie Andrew
"Since 1982"
r_slot
r_slot
SSC Journeyman
SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)SSC Journeyman (79 reputation)

Group: General Forum Members
Points: 79 Visits: 176
Thanks a lot guys: there is a beginning of an understanding. Putting it into practice look at the following:


CREATE TABLE #images (files VARCHAR(500) NULL, InsertCMD
AS 'INSERT INTO Renner_Foto (ImageID, ImageName, ImageData ) '
+ ' SELECT ' + LEFT(files, PATINDEX('%[^0-9]%', files) - 1) + ' AS ImageID, '
+ '''' + files + ''' As ImageName, '
+ 'BulkColumn FROM OPENROWSET( Bulk '
+ '''D:\MijnDocumenten\DWCoureurLocaleData\Irfanview_20112011\' + files + ''','
+ ' SINGLE_BLOB) AS BLOB '
)



The rules are:
the contents of InsertCMD needs to be in single quotes;
the SQL-commands need no further treatment (just single quotes);
the left part don't need quotes because it is a literal;
then the part with '''' + files + ''' As ImageName, ' I don't understand: files is literal but needs double quotes?
the same in relation to the last part: why three quotes (double and a single I assume) before D:\MijnDocumenten\etc. then a single quote and at last again a triple and a single.

The only thing that is understandable is the fact that they come in pairs, so the total amount of quotes is always even. It is the placing that give me problems.

Perhaps someone can give it one further try?

Thanks in advance,

Robert
gorthog
gorthog
SSC Veteran
SSC Veteran (266 reputation)SSC Veteran (266 reputation)SSC Veteran (266 reputation)SSC Veteran (266 reputation)SSC Veteran (266 reputation)SSC Veteran (266 reputation)SSC Veteran (266 reputation)SSC Veteran (266 reputation)

Group: General Forum Members
Points: 266 Visits: 162
r_slot,

To address your original question, each single quotation mark within a string must be preceded with the single quote literal marker:


SELECT 'Giro d''Italia'
UNION
SELECT 'This is an empty string: '''''



output:

---------------------------
Giro d'Italia
This is an empty string: ''


-gjr
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