derby

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reference to ID instead of using foreign key in jdo?

I\'m using Datanucleus (jdo) with derby and I have a class MyClass. And this class has a variable of the type AnotherClass. I want to persist this variable.开发者_如何学Go When an instance of MyClass[详细]

2023-01-30 04:18 分类：问答
Is there a tool other than ij to look into a local derby database (folder)?

I\'m using Derby ij to look into my local Apac开发者_开发百科he Derby database. It\'s just a folder and I connect to it like this:[详细]

2023-01-30 00:28 分类：问答
Setting up an embedded Derby database in a standalone Java application

I\'m trying to setup an embedded Derby database for a standalone Java application, but after pouring through all sorts of documentation, I just can\'t seem to find any simple explanations or examples.[详细]

2023-01-29 08:09 分类：问答
hibernate hbm2ddl boolean column typeCastException in dbunit

I use an in memory Derby database with Hibernate to create the tables. My tests use dbunit to prepare the database with test data.[详细]

2023-01-29 06:34 分类：问答
want to use ireport with sqlite or java derby

I am developing an application using Java with MySQL for a custom开发者_StackOverflow中文版er. I don\'t want the customer to install MySQL on his PC, so I moved to java Derby DB.[详细]

2023-01-28 05:16 分类：问答
Check if word exists in within a database table in Java

So I have a database, within which there is a table with two columns: rightWord and wrongWord. I wish to select the rightWord value when the wrongWord value is equal to a variable declared in Java. I[详细]

2023-01-27 16:25 分类：问答
Derby Table Not Being Created

I am trying to create a database and table from within my Java code to no avail.Here is my database code and the error I am receiving when I run my program. When I debug my PreparedStatement variables[详细]

2023-01-26 06:31 分类：问答
How can I use derby in memory with jpa2?

Regardless of the following persistence.xml configuration the database is persisted on disk. <persistence-unit name=\"com.mysimpatico_inmemory_persiste开发者_如何学编程nce_nbm_1.0-SNAPSHOTPU\" tr[详细]

2023-01-23 16:07 分类：问答
Resultset not open. Verify Autocommit is OFF. Apache Debry

I am using apache derby for my database. I am able to perform inserts into the database. The following is the excerpt from the code that attempts to display the contents of my only table \'MAINTAB\'.[详细]

2023-01-22 06:52 分类：问答
Error in SQL statement for Derby database

I\'m havin an error while trying to execute this piece of sql code... The error I\'m getting is: Encountered \"(\" at line 1, col开发者_开发技巧umn 45[详细]

2023-01-21 19:44 分类：问答