h2

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Spring Roo: JDBC driver not available for 'org.h2.Driver'

I\'m running Eclipse Indigo on Ubuntu Linux, Spring Tools 2.7.1, Spring Roo 1.1.5. I\'m reading Getting Started with Roo and when I try the DB reverse engineering I\'ve the following error:[详细]

2023-04-03 04:20 分类：问答
Gerrit remove Need Verified +1 (Verified)

I just installed a Gerrit server and wish to get rid of the Need Verified +1 (Verified) permission. Our team would only like to +2 changes instead of doing both things.[详细]

2023-04-01 23:27 分类：问答
ormlite with persistent h2 db - new tables not get persisted

When I am creating a new H2 database via ORMLite the database file get created but after I close my application, all the data that it stored in the database is lost:[详细]

2023-03-31 18:44 分类：问答
Is creating many schemas in H2 a good strategy for sharding and performance?

On a mailing list, someone exposed the following issue: We have millions of users (1 to 5 MB of data per user)[详细]

2023-03-29 09:39 分类：问答
h2database is very slow on order by

I have a java applet what has embeeded h2 database, and table with 200.000 rows. Table: CREATE TABLE `DB`.`TEST` ([详细]

2023-03-29 06:12 分类：问答
Efficiently selecting from many-to-many relation in H2

I\'m using H2, and I have a database of books (table Entries) and authors (table Persons), connected through a many-to-many relationship, itself stored in a table Authorship.[详细]

2023-03-27 02:12 分类：问答
JPA connection with H2 database

I am developing a hibernate with JPA project and trying to get the working persistence.xml by using H2(Embedded database).[详细]

2023-03-26 03:03 分类：问答
H2 Optimize select statement / shutdown defrag

Test Case: drop table master; create table master(id int primary key, fk1 int, fk2 int, fk3 int, dataSvarchar(255),data1 int, data2 int, data3 int, data4 int,data5int,data6 int,data7 int,data8 int,d[详细]

2023-03-25 12:50 分类：问答
Selecting from a view in H2 doesn't work

I recently replaced PostgreSql unit test database with an in memory H2 Database. I couldn\'t figure out why couple tests are failing, it was working fine with Postgre. There are approx. 280+ unit test[详细]

2023-03-24 19:42 分类：问答
H2 Java Insert ignore - allow exception

I am working on a java plugin interfacing with an H2 database. What I really want is an \"Insert Ignore\" statement; however, I\'m aware that H2 doesn\'t support this. I am also aware of Merge, but th[详细]

2023-03-20 22:27 分类：问答