Different Results With CAST Function

Jul 25, 2013

When I test the CAST function on AdventureWorks2012, the CAST function will round down or up, i.e. 2024.994 to 2025 or 5.1865 to 5.

However, when I try the same the CAST function as:

SELECTCAST(2024.994 AS INT) the result I get is now 2024 (and not 2025).

Why is CAST rounding up when I use it on a table in the AdventureWorks2012 database, but when I use CAST on its own, it rounds down?

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Help In Cast Function!

Mar 8, 2006

Hi,

I have a table with the following structure:
Table: Meeting
ID integer not null
Desc text null

Here Col 'Desc' is a text type stores description. I have used the following UPDATE query:
UPDATE Meeting SET Desc='New Updated text......' + ' ' + CAST(Desc as varchar) WHERE ID=100

Issues:
1. Since i did'nt specify lenth for varchar it takes only 30 chars from existing value and added to the edited text.
2. If i give like this CAST(Desc as varchar(8000)); it might take only first 8000 chars; remaining would be truncated correct? I assume that will happen.
3. If i don't use CAST i get error msg: "Invalid operator for type.."
Is there any work around in this situation? or better way to do it.

Looking for your help.
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---------------------
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SELECT     ClinicalID, SpecimenID, PatientID, LabID, Accession, Bacillus, Francisella, Yersinia, Brucella, Burkholderia, Coxiella, Staphylococcus, Other,                       OtherExplanation, CollectionDate, strddlTransportMedium, strddlSpecimenSource, UserName, Test, SpecimenCount, DateAndTimeFROM         ClinicalSpecimenWHERE     (SpecimenID = CAST('7575-01' AS VARCHAR(50)))ORDER BY SpecimenID DESCHowever, when I try to use the same logic in the ASPX.VB code behind page, as follows below, I either get an error message (Syntax error converting the varchar value '' to a column of data type int.) or record not found.... Can someone please explain what I am missing here....
MySQL = "SELECT * FROM ClinicalSpecimen WHERE SpecimenID = CAST(('" & AccessionPresent & "') AS VARCHAR(50))"
*"AccessionPresent" is the value of the text field retrieved from the form.
I guess what I am really asking is how can I search for an INT value in a table using a VARCHAR Field.
Thank you for any or all assistance !!!

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Cast Or Convert

Feb 18, 2008

 Hi,I want to turn int to double/decimal  in microsoft sqlSHould i use cast or convert?if so, how i do it thanks, 

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