Michael Baranov wrote:
Hi!
I'm using OO 2.3.0 on Ubuntu Gutsy and building a little private
accounting DB. The engine is embedded HSQLDB.
However, I came across a problem : I can't make TOP/LIMIT to work with
queries. Tried all sane and insane combinations like:
SELECT TOP 3 * FROM ...
SELECT * FROM ... LIMIT 3
SELECT LIMIT 3 * FROM ...
etc. etc.
Any clues? Thank you!!!
Hi Michael,
The short answer:
You will need to run these queries direct - meaning, in the query design
window after turning off the GUI designer and adding your TOP or LIMIT
comamand you must then click on the tool button 'Run SQL direct' It is a
graphic of the letters SQL with a green check mark on the right of the
toolbar ( in the default icon set ).
Following are all valid uses of the commands:
SELECT TOP 3 * FROM "Tasks" ORDER BY "StartDate" SELECT LIMIT 3 2 *
FROM "Tasks"
SELECT * FROM "Tasks" ORDER BY "StartDate" DESC LIMIT 3
SELECT * FROM "Tasks" ORDER BY "StartDate" DESC LIMIT 3 OFFSET 2
SELECT TOP 3 * FROM "Tasks" ORDER BY "StartDate" DESC
Following are INVALID statemsnts
SELECT * FROM "Tasks" LIMIT 3
SELECT * FROM "Tasks" ORDER BY "StartDate" DESC TOP 3
SELECT LIMIT 3 * FROM "Tasks"
One thing to keep in mind is that the different queries do not return
the same result sets.
So - for the long answer a bit more explanation with an example really
makes sense
- The wiki ro the forum..hmmm..
OK - I suppose the wiki
Just created a decent example dataset ( used for queries above ) and
have started updating the page at
http://wiki.services.openoffice.org/wiki/Built-in_functions_and_Stored_Procedures#Modifiers
I'll post here when that is finished.
Drew
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