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H2 Database
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This is the mailing list of the
H2 database engine
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Rinse Lemstra
2
Jun 20
Please help understanding the trace-file
The applicationlog is also available: http://www.xso.nl/media/downloads/Application.zip Op vrijdag 20
unread,
Please help understanding the trace-file
The applicationlog is also available: http://www.xso.nl/media/downloads/Application.zip Op vrijdag 20
Jun 20
Rinse Lemstra
,
Andrei Tokar
2
May 24
is this still true ?
I believe so. Cache will be cleared, but it does not mean that you are going to loose any data, just
unread,
is this still true ?
I believe so. Cache will be cleared, but it does not mean that you are going to loose any data, just
May 24
Youssef AYYAR
,
Christian Buchegger
3
May 22
Please I need help to connect to H2 database using Python.
OK, Thank you so much. On Thu, May 22, 2025 at 5:43 PM 'Christian Buchegger' via H2 Database
unread,
Please I need help to connect to H2 database using Python.
OK, Thank you so much. On Thu, May 22, 2025 at 5:43 PM 'Christian Buchegger' via H2 Database
May 22
Mike Goodwin
, …
Andrei Tokar
4
May 5
H2 Architecture
You do not even have to build anything. It's published to Maven along with H2: https://
unread,
H2 Architecture
You do not even have to build anything. It's published to Maven along with H2: https://
May 5
Rinse Lemstra
, …
Bill
4
Apr 23
Anyone have suggestions?
I use a cache size of H2_CACHE_SIZE = 1000000, could that be the reason. After I run a query over all
unread,
Anyone have suggestions?
I use a cache size of H2_CACHE_SIZE = 1000000, could that be the reason. After I run a query over all
Apr 23
Gino Marckx
,
Evgenij Ryazanov
3
Apr 9
Is the database configurable to support constraints with same name for different tables?
Thanks for the info! I was able to fix it quickly by adding a migration to rename the constraints and
unread,
Is the database configurable to support constraints with same name for different tables?
Thanks for the info! I was able to fix it quickly by adding a migration to rename the constraints and
Apr 9
Doug Merrett
,
Andreas Reichel
3
Apr 1
restore script and backup script - some form of sign of life
Thanks very much Andreas. On Wed, 2 Apr 2025 at 13:05, Andreas Reichel <andreas@manticore-projects
unread,
restore script and backup script - some form of sign of life
Thanks very much Andreas. On Wed, 2 Apr 2025 at 13:05, Andreas Reichel <andreas@manticore-projects
Apr 1
Roberto La Rosa
,
Evgenij Ryazanov
2
Mar 26
pg server does not show pg_catalog once remote session connected ?
Hello! Since H2 2.0.202 connection through PostgreSQL protocol automatically enables MODE=PostgreSQL,
unread,
pg server does not show pg_catalog once remote session connected ?
Hello! Since H2 2.0.202 connection through PostgreSQL protocol automatically enables MODE=PostgreSQL,
Mar 26
Wesley zen
Mar 26
The execution process of the SQL statement is visible in the logs, but the table cannot be found in the PUBLIC schema.
Problem description: I integrated H2 Database for unit testing in my current project. I can see the
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The execution process of the SQL statement is visible in the logs, but the table cannot be found in the PUBLIC schema.
Problem description: I integrated H2 Database for unit testing in my current project. I can see the
Mar 26
virimchi m
,
Evgenij Ryazanov
3
Mar 24
Possible defect: Java methods as stored procs run thrice when ran once
Thank you for pointing me to the documentation. I have spring Jdbc code that calls SQL server stored
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Possible defect: Java methods as stored procs run thrice when ran once
Thank you for pointing me to the documentation. I have spring Jdbc code that calls SQL server stored
Mar 24
Paul Hrdina
, …
Andreas Reichel
6
Mar 21
Reasons for using proprietary testing infrastructure
Hi Thomas and Andreas, Thank you very much for your insights into the current state of H2 testing
unread,
Reasons for using proprietary testing infrastructure
Hi Thomas and Andreas, Thank you very much for your insights into the current state of H2 testing
Mar 21
Martin Changer
, …
MartinSt
6
Mar 20
ETA for next Release?
also interested in ETA Mario Ackerl schrieb am Freitag, 28. Februar 2025 um 11:44:37 UTC+1: +1 from
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ETA for next Release?
also interested in ETA Mario Ackerl schrieb am Freitag, 28. Februar 2025 um 11:44:37 UTC+1: +1 from
Mar 20
Noel Grandin
, …
who...@gmail.com
3
Mar 8
Re: [h2] Extremely slow update performance
Thanks for the tips. I did try limiting it to fewer rows. I didn't mean to delete the OP, I meant
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Re: [h2] Extremely slow update performance
Thanks for the tips. I did try limiting it to fewer rows. I didn't mean to delete the OP, I meant
Mar 8
Alex Tiboldi
Jan 26
Recovery of a split database
I have an old large (split) database created with the v1.4.200 version...keyword old and forgot the
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Recovery of a split database
I have an old large (split) database created with the v1.4.200 version...keyword old and forgot the
Jan 26
philfrei1
, …
Evgenij Ryazanov
5
Jan 25
environment variable is being considered "implicitly relative" by systemd?
SOLVED: For whatever reason, a system-level environment variable is not accessible for a service
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environment variable is being considered "implicitly relative" by systemd?
SOLVED: For whatever reason, a system-level environment variable is not accessible for a service
Jan 25
Mike Goodwin
,
Evgenij Ryazanov
2
Jan 23
Rational Datatype
Hello! There is no such thing in SQL and usually fractions are stored in a couple of numeric fields,
unread,
Rational Datatype
Hello! There is no such thing in SQL and usually fractions are stored in a couple of numeric fields,
Jan 23
Andreas Reichel
Jan 14
Java io_uring bindings
Please see https://github.com/davidtos/JUring "JUring is a high-performance Java library that
unread,
Java io_uring bindings
Please see https://github.com/davidtos/JUring "JUring is a high-performance Java library that
Jan 14
Bastian Linneweber
, …
Noel Grandin
6
Jan 14
like 'test%' with escape '' not working in MODE=ORACLE
On 1/14/2025 10:25 AM, Marcus wrote: > > And, to be honest, giving an empty result because of a
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like 'test%' with escape '' not working in MODE=ORACLE
On 1/14/2025 10:25 AM, Marcus wrote: > > And, to be honest, giving an empty result because of a
Jan 14
Balamurali Krishna Ippili
, …
Evgenij Ryazanov
7
Jan 10
File corrupted while reading record: Possible solution: use the recovery tool [90030-224]
Hi Evgenij, Thanks for your reply and the points that you have mentioned and will try to upgrade to
unread,
File corrupted while reading record: Possible solution: use the recovery tool [90030-224]
Hi Evgenij, Thanks for your reply and the points that you have mentioned and will try to upgrade to
Jan 10
Dan Howard
,
Andreas Reichel
2
12/23/24
The database has been closed from AssertionError
Please upgrade to the latest H2 version. H2 2.2.224 was not the best release and quite a few
unread,
The database has been closed from AssertionError
Please upgrade to the latest H2 version. H2 2.2.224 was not the best release and quite a few
12/23/24
Sarat Vemuri
,
Evgenij Ryazanov
3
12/15/24
Materialized View
Hello!!!! Thank you very much. I will try this out and post the results. Thanks, Sarat Vemuri. On
unread,
Materialized View
Hello!!!! Thank you very much. I will try this out and post the results. Thanks, Sarat Vemuri. On
12/15/24
Paulo Dias
, …
Christian Buchegger
3
12/10/24
Java Version
Use at least Java 11. Looks you are still using Java 8 https://javaalmanac.io/bytecode/versions/
unread,
Java Version
Use at least Java 11. Looks you are still using Java 8 https://javaalmanac.io/bytecode/versions/
12/10/24
Gururaja shreshti
,
witerat
2
12/7/24
i am getting a null in all the records of the h2 database ...how to fix the problem
How is the table populated? On Friday, 6 December 2024 at 23:31:26 UTC+13 Gururaja shreshti wrote:
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i am getting a null in all the records of the h2 database ...how to fix the problem
How is the table populated? On Friday, 6 December 2024 at 23:31:26 UTC+13 Gururaja shreshti wrote:
12/7/24
Enno Thieleke
, …
Noel Grandin
13
12/2/24
Implement restore points (vaguely similar to Oracle)
Hi, I've put some more work into this feature request and wanted to end this thread here in favor
unread,
Implement restore points (vaguely similar to Oracle)
Hi, I've put some more work into this feature request and wanted to end this thread here in favor
12/2/24
Christopher Espinal
,
t603
2
11/22/24
What is latest Stable release
Hello Christopher, I do not know, why http://www.h2gis.org/ is not updated, but AFAIK H2GIS is
unread,
What is latest Stable release
Hello Christopher, I do not know, why http://www.h2gis.org/ is not updated, but AFAIK H2GIS is
11/22/24
Balamurali Krishna Ippili
,
Andreas Reichel
5
11/20/24
H2 DB 2.2.224 is crashing intermittently
Hi Andreas, Thanks for your reply and I really appreciate it. Sure I will try to upgrade to the
unread,
H2 DB 2.2.224 is crashing intermittently
Hi Andreas, Thanks for your reply and I really appreciate it. Sure I will try to upgrade to the
11/20/24
Olaf Brenn
,
Andrei Tokar
3
11/6/24
H2 Server Performance
Thanks, we found out, that using and increasing batch mode is improving the issue. Andrei Tokar
unread,
H2 Server Performance
Thanks, we found out, that using and increasing batch mode is improving the issue. Andrei Tokar
11/6/24
Paulo Destro
9/25/24
Prepared Statement trigger which translates from another database SQL synthesis to H2 SQL synthesis.
There is no embedding of the Postgres database for testing. The H2 database helps a lot and makes it
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Prepared Statement trigger which translates from another database SQL synthesis to H2 SQL synthesis.
There is no embedding of the Postgres database for testing. The H2 database helps a lot and makes it
9/25/24
willy discart
9/15/24
Limit size of temporary files
Hi, Is there a way to limit the size of the temporary files the database is using ? This just to
unread,
Limit size of temporary files
Hi, Is there a way to limit the size of the temporary files the database is using ? This just to
9/15/24
prachi sugdare
,
Alex Tsvetkov
4
8/31/24
h2 database version 1.4.200 is corrupted with error code: 90030
Did you try not to use not supported "-out" argument? пн, 26 авг. 2024 г. в 10:55, prachi
unread,
h2 database version 1.4.200 is corrupted with error code: 90030
Did you try not to use not supported "-out" argument? пн, 26 авг. 2024 г. в 10:55, prachi
8/31/24