How to convert datetime field in dynamic query?

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SQL-server-2000

Hi,

First thank you code project members!!

I am facing a problem in SQL SERVER. I wrote a dynamic query with dated where clause

as it is dynamic query it giving me error

Conversion failed when converting datetime from character string.

SQL

set @SQLQry ='Insert into #tmpSpeed(Speed) SELECT Speed FROM '
    +@tablenameSt+' WHERE SIMID ='+ @TrackerID +'
    AND dated between CONVERT(datetime,'''+@StartDateTime+ ''', 120)  and  CONVERT(datetime,'''+@EndDateTime+ ''', 120)'

Please tell how can it solved.

:(

Posted 24-Mar-11 23:15pm

Seema Gosain

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OriginalGriff · Answer 1 · 2011-03-24T23:30:00

Solution 3

When you specify the "style" as 120, you specify that SQL should treat the input string as canonical: i.e. yyyy-mm-dd hh:mi:ss(24h) If your data is not exactly that, then you will get an error.

MSDN[^]

Posted 24-Mar-11 23:30pm

OriginalGriff

T.Saravanann · Answer 2 · 2011-03-24T23:21:00

Solution 1

Hi,

Check it your input.
May be you can pass the datetime in 'dd/MM/yyyy' format.

In Sql server,its consider the datetime in 'MM/dd/yyyy' format.

Posted 24-Mar-11 23:21pm

T.Saravanann

Comments

OriginalGriff 25-Mar-11 5:31am

Unfortunately, that turns out not to be the case: SQL standard datetime format is "yyyy-mm-dd hh:mi:ss", and since he specifies style 120, that is what is expected.

T.Saravanann 25-Mar-11 5:48am

of course..But his case there is no need to use style 120.Just he change the query into ...
set @SQLQry ='Insert into #tmpSpeed(Speed) SELECT Speed FROM '
+@tablenameSt+' WHERE SIMID ='+ @TrackerID +'
AND dated between CONVERT(datetime,'''+MM/dd/yyyy+''') and CONVERT(datetime,'''+MM/dd/yyyy+''')' ..This query also working fine.

Sandeep Mewara · Answer 3 · 2011-03-24T23:30:00

Complete error detail with sample example here: http://www.sql-server-performance.com/faq/conversion_failed_datatime_character_p1.aspx[^]

Generally, SQL Server expects dates in the format mm/dd/yyyy, so you will need to convert your date into this format before submitting.

Try something like:

Dim myDatevalue as new SqlParameter("@StartDateTime", Format("myDatevalue","mm/dd/yyyy"))