derby

How to use SQLDeveloper to connect to embedded Derby database

由 我与影子孤独终老i 提交于 2019-12-19 04:16:05
问题 I have a project using derby and JPA. I can connect to the database fine within my application. I would like to connect to the embedded database with SQL Developer so I can easily browse/query the data in the database. Here is the derby dependency I'm using: <dependency> <groupId>org.apache.derby</groupId> <artifactId>derby</artifactId> <version>10.7.1.1</version> </dependency> Here is the the connection info I'm using for JPA: <property name="javax.persistence.jdbc.driver" value="org.apache

Apache Derby - Check Database Already Created?

由 半腔热情 提交于 2019-12-18 16:50:36
问题 Using Apache Derby with Java (J2ME, but I don't think that makes a difference) is there any way of checking if a database already exists and contains a table? 回答1: I know of none, except few work around, unlike MySQL where we have that facility of IF EXIST. What you do is, try to connect to the database, if couldn't its likely its not there. And after a successful connection, you can do a simple select, like SELECT count(*) FROM TABLE_NAME, to know whether the table exist or not. You would be

java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDriver

由 拜拜、爱过 提交于 2019-12-18 12:00:54
问题 I'm using Eclipse EE Kepler and I'm trying to run derby in my program. I added to my build path derby.jar and derbyclient.jar and still I'm getting the following error: java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDriver . Can someone help me with solving this problem? 回答1: I stuck with the same problem 'java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDriver'. In my case, scope attribute is set to test <!-- https://mvnrepository.com/artifact/org.apache.derby

connecting to a file-based derby database

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-18 04:17:07
问题 I want to work with a file-based database using apache derby. I was wondering if anyone can carify how to connect & create this database using netbeans as an IDE. I passed through derby manuals trying to figure this one out, but all i got was "Embedded Derby JDBC Database Connection", which i was told is not a file-based approach, and either way, the connection didn't seem to work. any help would be much appreciated 回答1: When you download NetBeans 7.1.2, the "All" package you get the

org.hibernate.hql.internal.ast.QuerySyntaxException: table is not mapped

由 跟風遠走 提交于 2019-12-17 21:57:34
问题 I have example web application Hibernate 4.3.5 + Derby database 10.10.1.1+ Glassfish4.0 with IDE NetBeans 8.0Beta. I have the next exception: Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: CUSTOMERV is not mapped at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189) at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109) at org.hibernate.hql.internal.ast.tree.FromClause

How do you start derby in network server mode and still get an embedded connection?

由 房东的猫 提交于 2019-12-17 20:12:26
问题 I just want to know how I can start derby in network server mode and still be able to get an embedded connection? Thank you. 回答1: You need to launch Derby in "embedded server mode". If you are already using Derby in embedded mode, this can be enabled by providing the necessary files in your classpath, then specifying a handful of command line arguments when launching the application. First make sure the following jars are in your application's runtime classpath. derby.jar derbynet.jar Then

Is it possible to use derby from apache in Eclipse now that they stopped developing the derby plugin for Eclipse?

由 喜你入骨 提交于 2019-12-17 03:44:06
问题 I would like to use Derby from apache in order to include database management on a desktop application that I'm currently developing. Unfortunately I figured out that they have stopped developing this plugin and all the tutorials I've read online refer to this plugin. So my question is, how can I use the latest version of Derby on eclipse? What steps should I follow? I would like my application to be standalone and easily transferable. thanks in advance 回答1: Apache Derby is just like other

三分钟学会使用Derby数据库

由 China☆狼群 提交于 2019-12-16 11:39:46
Derby数据库是一个纯用Java实现的内存数据库，属于Apache的一个开源项目。由于是用Java实现的，所以可以在任何平台上运行；另外一个特点是体积小，免安装，java1.6开始集成了derby数据库,位于jdk下面的db目录下. 环境变量配置 CLASSPATH = 12345 ‪C:openSourcejdk1.8.0_162dblibderby.jar;‪C:openSourcejdk1.8.0_162dblibderbyclient.jar;‪C:openSourcejdk1.8.0_162dblibderbytool.jar;‪C:openSourcejdk1.8.0_162dblibderbynet.jar;‪C:openSourcejdk1.8.0_162dblibderbytools.jar; PATH = 1 C:openSourcejdk1.8.0_162dbbin 如果不想配置,也可以使用下面指令来简化你的使用 在Derby数据库的/bin目录中提供了几个脚本用于设置classpath，以简化你手工在classpath中添加jar包的麻烦： setEmbeddedCP。当使用内嵌模式来运行Derby时，可以使用该脚本来设置。该脚本将derby.jar和derbytools.jar添加到环境变量中； setNetworkServerCP

Error is java.sql.SQLSyntaxErrorException: Schema 'ROOT' does not exist [duplicate]

由 ＊爱你＆永不变心＊ 提交于 2019-12-14 03:24:09
问题 This question already has answers here : Derby Schema Error (2 answers) Closed 5 years ago . i am creating desktop application which uses derby embedded database, although when i use derby as a client database then it works fine, but i want to embed this database with my desktop application then it throws error below is the code for help, check it out public class TaxInvoice extends javax.swing.JFrame { //String connectionurl = "jdbc:derby://localhost:1527/embdIDA1db"; String connectionurl =

Netbeans + derby + hibernate

由 被刻印的时光 ゝ 提交于 2019-12-14 02:19:15
问题 I'm following http://netbeans.org/kb/docs/java/hibernate-java-se.html tute to setup hibernate with derby in netbeans IDE. Netbeans fails to create hibernate.reveng.xml with error : "Cannot establish database connection with selected Hibernate Configuration file. Please verify the database connection details in hibernate.cfg.xml" My hibernate.cfg.xml looks like this <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN
订阅 derby