Tagged Questions
1
vote
1answer
34 views
Will OPTIMIZE TABLE have any impact on my data?
I'm having issues with a database that is getting quite slow. The analyzer in phpMyAdmin recommends that I run OPTIMIZE TABLE on my tables.
But before doing so, I would (of course) like to know if ...
4
votes
2answers
530 views
Is there a way to hint to query optimizer to MySQL which constraints should be done first?
This is my current query:
SELECT BusinessID as ID,
111151.29341326*SQRT(pow(-6.186751-X(LatLong),2)+pow(106.772835-Y(LatLong),2)*0.98838574205337) AS Distance from
(
SELECT *
FROM
...
4
votes
2answers
235 views
Can I optimize for the zIIP processor?
Is it possible to change SQL in a z/OS mainframe COBOL application so that it becomes eligible to be directed to the IBM System z Integrated Information Processor (zIIP)?
8
votes
1answer
659 views
Monumental difference in execution time between queries when using RECOMPILE query hint
I have two almost identical queries running on the same SQL Server 2005 instance:
The first one is the original SELECT query as generated by LINQ (I know, I know... I'm not the application ...
