while establishing database connectivity with java application,i tried to run .jar file it showing an error msg "Failed to load main class manifest attribute from c:\program files\sqljdbc_2.0.1803.100_enu\sqljdbc_2.0\enu\sqljdbc4.jar " how i can proceed further? ...
my sql server instance name is MYPC\SQLEXPRESS and I'm trying to create a jTDS connection string to connect to the database 'Blog'. Can anyone please help me accomplish that ? I'm trying to do like this: DriverManager.getConnection("jdbc:jtds:sqlserver://127.0.0.1:1433/Blog", "user", "password"); and I get this: java.sql.SQLExcepti...
I am a newbie. I am writing an application in Java which connects to Oracle 9i database. I need to enforce some rules in my application like: Chair of Committee A must be added/deleted as a Member in Committee B. There are around 10 such rules that need to be enforced. I am in a dilemma whether to enforce these rules by writing trigger...
I've got a class that implements Iterator with a ResultSet as a data member. Essentially the class looks like this: public class A implements Iterator{ private ResultSet entities; ... public Object next(){ entities.next(); return new Entity(entities.getString...etc....) } public boolean hasNext(){ ...
Hi, I have set up tomcat to use a connection pool yet after the mysql timeout on connections the connections previously open in the pool are not opened.Here is what my context.xml file looks like: <Resource name="jdbc/hpsgDB" auth="Container" type="javax.sql.DataSource" maxActive="5" maxIdle="3" maxWait="10000" u...
Hello, I have an table (in ORADB) containing two columns: VARCHAR unique key and NUMBER unique key generated from an sequence. I need my Java code to constantly (and in parallel) add records to this column whenever a new VARCHAR key it gets, returning the newly generated NUMBER key. Or returns the existing NUMBER key when it gets an ex...
I am having some problems and I'm sure it's something stupid. So I have a query like SELECT name, id, xyz FROM table ORDER BY ? then later down the road setting the ? doing a ps.setString(1, "xyz"); I am outputting the query and the value of xyz in the console. When I loop through the ResultSet returned from the PreparedStatemen...
what are the various other programs using which i can connect to odbc database besides ms-access. i'm talking about programs in which i can run sql queries. i dont want to use ms-access because the size of the access file has become 1.5 gb . why my database is 1.5 gb ? i am using access to connect to odbc - mysql database . which is q...
The purpose is to send extra information to triggers like current user id from a web application. Since a connection pool is used, and same user id is used for all connections how do I pass the original web user id to trigger? This I need to implement without touching application code. It is a java based application. John ...
i am migrating from ms access database to mysql database with java frontend so that my application can be used in linux as well . in ms access here's what i would do go to create query . write a select statement . call give the name of the query as query1. when double clicking on query1 you would get the result of select statement in ...
In my application, Spring manages connection pool for database access. Hibernate uses these connections for its queries. At first glance, I have no problems with the pool: it works correctly with concurrent clients and a pool with only one connection. I can execute a lot of queries, so I think that I (or Spring) don't leave open connecti...
i have deployed my application on jboss 3.I have restored a database back up of sql server 2000 on sql server 2005.then i have downloaded the jr file jdbc connection to sql server 2005.My connection string setting is as below. <datasources> <local-tx-datasource> <jndi-name>SLBDataSource</jndi-name> <connection-url>jdbc:sqlserver:...
import java.sql.*; import java.io.*; import java.awt.*; import java.awt.event.*; import java.applet.*; /* <applet code="A0" width=250 height=200> </applet> */ public class A0 extends Applet implements ActionListener,ItemListener { String msg=""; Button view,delete,create,edit,reapp,exit; TextField M_head; int x,i,ans=0,flag; public v...
I have situation where a 3rd party open source product I am using is running out of cursors in Oracle and receiving the error: java.sql.SQLException: ORA-01000: maximum open cursors exceeded My maximum cursors is set to 1000 and I am trying to figure out if the code that is reaching this limit is doing something incorrectly, or if I sim...
in mysql i have two tables tableA col1 col2 SIM1 ..........col24 a x 1 5 b y 1 3 c z 0 2 d g 2 1 tableB colA colB SIM2 x g 1 y f 0 x s 0 y e 2 i am using java program to connect to mysql database u...
I am new to jdbc and i'm try to connect to by database form IDE.The code below is what i wrote; private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { try { DriverManager.registerDriver(new org.apache.derby.jdbc.ClientDriver()); Connection conn=DriverManager.ge...
Is there a way to control the integrity of a DB2 query/response between Websphere 6.1 and DB2 8.1 ? I know there is a SecurityMechanism usuable with the JDBC UDB Type 4 driver to encrypt password and data. Is there something similar for integrity ? ...
I'm using JDBC in sync with MySQL to add and define rows to a MySQL database's Table. The problem is that I don't know why it is throwing an Exception when I use methods from the ResultSet class to add rows to the table. Bear in mind that I've earlier tried just reading the table via ResultSet methods, and, it successfully printed out th...
I use prepareStatement() when the id is a key of my SQL table and it will be created by SQL and I want to use this statement :(what should I write instead of X in the first column of SQL table(reminder:SQL create it automatically) File file = new File(pathFile); FileInputStream input = new FileInputStream(file); ...
It seems that the resultSet will be automatically closed when I close the Connection. But I want to return the rs and use it in another method,then I don't know where to close conn and pstmt. public ResultSet executeQuery(String sql, String[] getValue) { Connection conn = null; PreparedStatement pstmt = null; ResultSet rs = null;...