Yep. NULLs can invalidate NOT IN logic. Add a check to eliminate NULLs from the subquery:

SELECT COUNT(1)

FROM dbo.Token TD WITH ( NOLOCK )

WHERE ...

This may give you some ideas. I used a placeholder of <your_tally_table> for the tally table. Replace that with your own tally table name, either a physical tally...

In SQL Server, you'd need brackets around the name "Add":

Select l.[add], l.phne

from e_lkup l

where mins is null

GROUP BY phne, [add]

HAVING count(*) >1

EXCEPT

select l.[add], l.phne

from s_status ss

left outer...

I don't think so. I use that style all the time to rename files (yes, I should use Windows directly, but I'm used to working from within SQL :)...

Yeah, that drives you crazy until you figure it out, since SQL doesn't always clear out the job activity queue. You have to join to another control table to...

SET @CMD='ren "\\pashare\shared\dhsr data\Adolescent Health\IMG\PHI_Refresh\export_file_IMG.xlsx" "export_File_IMG_' +@date+'.xlsx"'

(Assuming date is a char data type and thus doesn't need CAST to char).

Can you give us the DDL for dbo.Cache and/or the query plan for:

UPDATEdbo.Cache

SETAvailability = Availability - 1,

LastUpdated = GETUTCDATE()

WHEREUnitId = @UnitId

ANDStartDate < DATEADD(DAY, @Duration, @StartDate)

AND@StartDate < DATEADD(DAY, Duration, StartDate)

ANDAvailability >...

To help the performance of your procs, you need to make sure no implicit conversions occur on table columns that are being compared against (WHERE column_name ...) or JOINed (INNER...

Just as an FYI, you can use a CROSS APPLY in these types of situations to assign meaningful alias names to intermediate values, which can sometimes make the SELECT logic...

IF that's a highly selective condition -- i.e., there are not many rows where that column has between 4 and 10 bytes -- then you might gain performance by adding...

I would certainly rebuild that table, if it's used a lot or you have some other cause of concern over it. As always for best performance, first determine and...

To tune for performance, you first need to review missing index stats and index usage stats (and index operational stats, if you can). The main improvement is to determine...

What you're doing is very dangerous code inside a trigger, as it's likely to run quite a while.

That said, you can only reference the "inserted" from within the trigger itself,...

Is this homework or similar? If so, we can only give you general guidelines, not fully completed SQL.

river1 (11/4/2015)

Hi,

I saw this job below which runs from 20 to 20 minutos on my production server.

Is it normal to have a statistics update every 20 minutos?

...

and ...