2013/6/18 Noel Grandin noelgran...@gmail.com
On 2013-06-09 13:43, Lukas Eder wrote:
Is this the intended behaviour? In my opinion, both constraints should
appear in the constraints view, though. Note, this is how I would query for
CHECK constraints in the SQL standard INFORMATION_SCHEMA
On 2013-06-19 08:23, Lukas Eder wrote:
Are there any plans to move towards semantic versioning
(http://semver.org) with H2? The current versioning scheme doesn't
formally allow to remove such backwards-compatibility flags again.
With semantic versioning, I think it would be OK to change the
Hi,
after reading the documentation about the COUNT aggregate function (
http://www.h2database.com/html/functions.html#count) I would expect that it
is possible to have a conditional COUNT.
But it does not seem to work as the test program below shows. It creates a
table with two colums t1 and
No, sorry, that's not valid SQL at all.
They have to be executed as separate statements.
SELECT COUNT(*) FROM TEST WHERE (t2-t1) 1000)
SELECT COUNT(*) FROM TEST WHERE (t2-t1) = 1000)
SELECT COUNT(*) FROM TEST
or like this, if you really needed the efficiency:
SELECT ((t2-t1) 1000), COUNT(*)
Thanks!
For the sake of completeness: after carefully rereading the documentation I
found a solution to get the values in one query with one resulting row.
The documentation says that COUNT counts all *non-NULL* values. When
combining the boolean expression with CASEWHEN it is possible to use
2013/6/19 Noel Grandin noelgran...@gmail.com
On 2013-06-19 08:23, Lukas Eder wrote:
Are there any plans to move towards semantic versioning (
http://semver.org) with H2? The current versioning scheme doesn't
formally allow to remove such backwards-compatibility flags again. With
semantic
Hi,
Is it possible to invoke functions such as LEAST or GREATEST from within a
UNIQUE constraint? I am having problems trying to implement
http://stackoverflow.com/a/16867094/14731
I invoked:
CREATE TABLE connections (id IDENTITY, from_participant_id BIGINT NOT NULL,
to_participant_id BIGINT
Answering my own question: you need to use computed columns:
http://www.h2database.com/html/features.html#computed_columns
The updated SQL looks like this:
CREATE TABLE connections (id IDENTITY, from_participant_id BIGINT NOT NULL,
to_participant_id BIGINT NOT NULL, least_participant_id BIGINT
