derby

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I am using embedded derby database and I want to add running balance column by calculating debit and credit amounts so please tell me solution code and image are also available below (as you can see in image balance total is not accurate) SELECT V_DATE,FLAG,V_NUM,V_NARATION, sum(VDTL.DR_AMOUNT) AS DEBIT, sum(VDTL.CR_AMOUNT) AS CRIDIT, sum(dr_amount)-sum(cr_amount) as total FROM VOUCHARDETAIL AS VDTL INNER JOIN VOUCHARMASTER AS VMST ON VDTL.DTL_NUM =VMST.MST_NUM WHERE (V_DATE BETWEEN '12-03-2017' AND '14-03-2017') AND (FLAG='IV' OR FLAG='BR' OR FLAG='CP' OR FLAG='CR' OR FLAG='JV' OR FLAG='BP')

I'd like to know why derby does not take into account property 'currentSchema' defined on a given datasource (WAS for current example) ? My problem is quite the same that Nastya have in this post: Omit schema in the DERBY Query But there is no answer to his/her last comment. So, i have an application working on different datasources (same database but one schema per datasource). I thought that Derby would use the property 'currentSchema' defined on a datasource if i tell him to use this datasource, but all my named queries are executed on schema 'DEV' (database user name)instead of the schema

I've being working on a java project using Derbyclient (database locally hosted). I'm done with everything except that when I'm trying the desktop app while I'm not manually connected to the database (from Netbeans), the error in the title pops up and I can't seem to solve it. Thank you for taking the time to read this and help me. Derby can be run in two modes embedded or server-based. Server-based allows multiple programs to access the same database. Embedded allows your application to run without a server. Your url selects server-based. The connection refused error indicates that the server

I am trying to insert data into Derby embedded database for my Desktop Application. But Derby is giving me error of Schema Not found error . I have tried to solve error by creating schema as per username, but does not solve my problem. I searched internet, but none of given solution solved my problem. package derbyd.ui; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; public class AddStudent extends javax.swing.JFrame { private void bt_saveActionPerformed(java.awt.event.ActionEvent evt) { String conURL = "jdbc:derby:myDB;create