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Results tagged with performance
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user 52150
An evaluation of whether a system works well enough to be fit for purpose. Normally performance refers to the speed with which a system completes an operation or set of operations over time.
1
vote
Simple yet problematic update query
Do you have a key/index on SUVillageID in VillageSU? If not, you'll want to add that. Also, have you tried this yet:
with ctesuv as
(select SUVillageID as VillageID
from VillageSU
…
- 968
5
votes
Accepted
Lead/Lag Implementation in SQL Server 2008 R2: Max memory exceeded
I'm submitting this as an answer, as I am currently avoiding the out-of-memory type errors as well as have reduced the time of run significantly (was 4+ hours, ending in failure; now is 1.25 hrs, endi …
- 968
7
votes
1
answer
3k
views
Lead/Lag Implementation in SQL Server 2008 R2: Max memory exceeded
Background
I'm trying to establish a "visits" sequence, wherein if an animal is detected at essentially the same place (General_Location) it counts as a single visit, but if it goes elsewhere and the …
- 968