derby

问题 I have a Java Derby database running in Netbeans and I'm trying to connect to it using the JDBC driver. However, I cannot import the JDBC driver specifically from the org.apache.derby package. What I've done: My pom.xml file contains the following Maven repo's <!-- https://mvnrepository.com/artifact/org.apache.derby/derby --> <dependency> <groupId>org.apache.derby</groupId> <artifactId>derby</artifactId> <version>10.15.1.3</version> <type>jar</type> </dependency> <!-- https://mvnrepository

问题 I have already set a Derby DB password in Glassfish/Netbeans. I also checked the remember me checkbox. Now I cannot change the password anymore. 回答1: To change the password you only have to execute: call SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.user.<my user name>', '<your new password>') for example if you username is 'john' and you want you new password to be 'johnsnewpassword' you would call: call SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.user.john', 'johnsnewpassword') 回答2: Call

问题 I have already set a Derby DB password in Glassfish/Netbeans. I also checked the remember me checkbox. Now I cannot change the password anymore. 回答1: To change the password you only have to execute: call SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.user.<my user name>', '<your new password>') for example if you username is 'john' and you want you new password to be 'johnsnewpassword' you would call: call SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.user.john', 'johnsnewpassword') 回答2: Call

问题 I am using Apache Derby database with ij 10.10. I have 2 table first is 'usertable' and the second is 'logintable'. In my 'usertable' I have two columns userid and name. My 'logintable' table has two columns userid and password. I need to set one column in logintable as foreign key where the primary key is in the user table. I used the command following command to create the table: create table usertable (userid varchar(10) primary key,name varchar(20)); How do I write the logintable to set

问题 I am using Apache Derby database with ij 10.10. I have 2 table first is 'usertable' and the second is 'logintable'. In my 'usertable' I have two columns userid and name. My 'logintable' table has two columns userid and password. I need to set one column in logintable as foreign key where the primary key is in the user table. I used the command following command to create the table: create table usertable (userid varchar(10) primary key,name varchar(20)); How do I write the logintable to set

问题 Is there a way to use MySQL data-types in Apache Derby? I am trying to make my application supportive of multiple databases and datatypes such as datetime, mediumtext are available in MySQL and not in Apache Derby. So is there a way to make Derby compatible with MySQL? 来源： https://stackoverflow.com/questions/65196315/use-mysql-datatypes-in-apache-derby

问题 I have run this program over and over, and got no error. But when I packaged it up into an executable it wouldn't run. So I deleted my derbyDB file to run from scratch and get a better sense of the error from intellij. It is saying there is no suitable driver for the derby connection. I have checked the product structure, the jar is in the right place, and the DERBY_HOME variable is still correct. Does anyone have any ideas error message: "C:\Program Files\Java\jdk1.8.0_131\bin\java" -Dfile

问题 I want to know a command to both Windows and Unix to start a Derby server at localhost:1527 but with an specific derby.system.home property From here I could only understand to set the locations, the paths Java and Derby installation. And the only thing about derby.system.home I found was this. Basically, I need a command to start the server the same way Netbeans does. 回答1: Assuming that you are starting the Derby Network Server using a technique similar to the ones documented in the Derby

问题 I have 3 sql tables customer, employee and manager. I want to access dynamically to my tables. I had a statement like this, "update customer set AMOUNT where ID= ?" But int this situation i can only access to customer. I need to access all of the tables for different operations. Is that possible that write this, "update ? set AMOUNT where ID=?" or what can i do to access for example employee for a different class. 回答1: The parameters can be used only in the place where you could otherwise use

问题 I am using these codes to create a table in derby database. CREATE TABLE "USED_BANKACCOUNT" ( "FYEAR" VARCHAR(10), "NUM" DOUBLE, "USERNAME" VARCHAR(20) ); My data is stored like this. FYEAR NUM USERNAME --------------------------------------------------- 2013 10.5 Pranjal 2013 5.25 Pranjal 2013 9.0 Bimal --------------------------------------------------- But I want my data to be stored like this FYEAR NUM USERNAME --------------------------------------------------- 2013 10.50 Pranjal 2013 5