I would liked to run a .sql file into postgresql using java. I've been able to do it in phpmyadmin but i guess it's not the same for postgresql. I didn't find anything that can help me out on the internet. Can someone please advice?
My .sql file CONTAINS :
Create Database IF NOT EXISTS Student;
This is what i've done in phpmyadmin and it did worked. So that's what am trying to do but this time using postgresql.
Here is my code for phpmyadmin: I've used IBATIS
import java.io.BufferedReader;
import java.io.FileReader;
import java.sql.DriverManager;
import org.apache.ibatis.jdbc.ScriptRunner;
public class Main {
public static void main(String[] args) {
String script = "Entity.sql";
try {
Class.forName("com.mysql.jdbc.Driver");
new ScriptRunner(DriverManager.getConnection(
"jdbc:mysql://localhost:3306/mysql", "root", ""))
.runScript(new BufferedReader(new FileReader(script)));
} catch (Exception e) {
System.err.println(e);
}
}
}
Can you please help?
Related
I am trying to connect sqlite db browser with java using nano editor i am very new here. i have
followed some youtube videos but i am stacking at mid can anyone please help
here is my code.
import java.sql.Connection;
import java.sql.Statement;
import java.sql.DriverManager;
import java.sql.SQLException;
public class SqliteDB{
Connection c = null;
Statement stmt = null;
SqliteDB(){
try{
Class.forName("org.sqlite.JDBC");
c = DriverManager.getConnection("jdbc:sqlite:signup.db");
System.out.println("Connected to DB");
}
catch(Exception e){
System.out.println("Error: "+ e.getMessage());
}
}
}
Error: org.sqlite.JDBC
thank you guys for helping.
I think that you have not imported library org.sqlite.JDBC in your project, Class.forName() return class that exists, when you get error like this it says that this class is not exists.
First of all download library from: https://bitbucket.org/xerial/sqlite-jdbc/downloads/
Then import in your project and that's how you should write the code:
public static void main(String[] args) throws SQLException {
org.sqlite.JDBC j = new org.sqlite.JDBC();
Connection c = DriverManager.getConnection("jdbc:sqlite:signup.db");
//do stuff here
}
Currently im developing a java swing application that I'd like to serve as the GUI for CRUD operations on a MS access database. Currently, everyone on the team that will be using this application updates a spreadsheet on a shareserver. They'd like to switch over to a UI that better suits their purposes, and transition the spreadsheet to a database.
I'm planning on putting an executable jar and the ms access database file on the shareserver. This is where the jar will be accessed.
I don't want users to have to be messing with ODBC settings. Is there a library that can help with this?
UPDATE: Shailendrasingh Patil's suggestion below worked best for me. This took me a little bit of research and the setup was a bit confusing. But I eventually got everything working the way I was hoping. I used Gradle to pull in the necessary dependencies to use UcanAccess.
The following is a snippet from my DatabaseController class:
import javax.swing.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
public class DatabaseController {
public DatabaseController() {}
public void addOperation(String date, String email, String subject, String body) {
try{
Connection con = DriverManager.getConnection("jdbc:ucanaccess://C:\\Users\\user\\Desktop\\TestDatabase.accdb;jackcessOpener=CryptCodecOpener","user", "password");
String sql = "INSERT INTO Email (Date_Received, Email_Address, Subject, Message) Values " +
"('"+date+"'," +
"'"+email+"'," +
"'"+subject+"'," +
"'"+body+"')";
Statement statement = con.createStatement();
statement.execute(sql);
}
catch (Exception e) {
JOptionPane.showMessageDialog(null, e.getMessage(),"Error",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
}
}
The following class is also required:
import java.io.File;
import java.io.IOException;
import com.healthmarketscience.jackcess.CryptCodecProvider;
import com.healthmarketscience.jackcess.Database;
import com.healthmarketscience.jackcess.DatabaseBuilder;
import net.ucanaccess.jdbc.JackcessOpenerInterface;
public class CryptCodecOpener implements JackcessOpenerInterface {
public Database open(File fl,String pwd) throws IOException {
DatabaseBuilder dbd =new DatabaseBuilder(fl);
dbd.setAutoSync(false);
dbd.setCodecProvider(new CryptCodecProvider(pwd));
dbd.setReadOnly(false);
return dbd.open();
}
}
I apologize for the bad indentations.
You should use UCanAccess drivers to connect to MS-Access. It is a pure JDBC based and you don't need ODBC drivers.
Refer examples here
hello i am trying to load my jdbc diver through classloader
here i am code but why i get this error if possible than give me some example
i don not what to set class path variable
i am making a database application and this application need to connect database again and again and i want to give this application to my friend but my friend not know about class path he is like normal user ,
my application can connect 4 type of database MS-Access,MySQL,Oracle,SQLlite...
in user system i have to set 5 class path variable and provide 5 jar file
if i give this application 100 people than they have set set class path variable
i can include jar file with my application but how can i set class path dynamically ....
please provide some example...
package classload;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class ClassLoad {
static Connection con;
public static void main(String[] args) {
File jar = new File("C:\\query\\Driver.jar").getAbsoluteFile();
if(jar.exists()){
System.out.print("File exits");
}
URL urls[] = null;
try {
urls = new URL[] {
jar.toURI().toURL()
};
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ClassLoader cl = new URLClassLoader(urls);
try {
Class.forName("com.mysql.jdbc.Driver", true, cl);
con=DriverManager.getConnection("jdbc:mysql://localhost", "root", "anil");
Statement stm=con.createStatement();
ResultSet result=stm.executeQuery("select *from actor");
while(result.next()){
System.out.print(result.getInt(1)+" "+result.getString(2)+" "+result.getString(3));
System.out.println("");
}
} catch (SQLException e) {
System.out.println(e);
}catch(ClassNotFoundException e){
System.out.println(e);
}
}
}
exception is
java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost
Just use One-Jar to package the application and all of the dependencies into single fat jar. Your solution is no good. Your friend would have to use the same folder structure as you are in order for it to work.
This error is coming probably because the required jar file mysql-connector has not been included in your project. Try including jar file as shown here. And try this code to load Driver class:
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/jlcstudents","root","password");
In this code class.forname it show error that class not found
so help me with this code because my is a local database application
I am using sqlite database.
package appview;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class Databaseconnection {
Connection connection = null;
public static Connection connection2()
{
try
{
Class.forName("org.sqlite.JDBC");
Connection connection = DriverManager.getConnection("jdbc:sqlite:C:\\Users\\Jainam\\Java Application\\JPH\\src\\database\\jph_db.sqlite");
return connection;
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
}
You have to declare the url this way: jdbc:sqlite:/DRIVE:/dirA/dirB/dbfile
DriverManager.getConnection("jdbc:sqlite:/C:/Users/Jainam/Java Application/JPH/src/database/jph_db.sqlite");
See Here for more informations
ClassNotFoundException means Java is not able to find the org.sqlite.JDBC class. You need to Download sqlite-jdbc-3.6.20.1.jar and put it in your class-path before running it.
here check database connectivity.
class not found ? then go for DDMS->FILE EXP-> SDCARD -> INSERT UR SQLITE.DB file.It will run proper.
i Have work on Hadoop/hive. i have install hadoop and hive which is running fine on command prompt.i have also create a MySQL meta store of hive.I have define HIVE-DB database name in hive-site.xml file.The same name database is available in MySQL>HIVE-DB .but the table which is create on hive command prompt is not available in mysql command Prompt.
And when i want to create a hive jdbc Connection then get following error..First it is my Program to create a jdbc connection
package aa;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class Main
{
private static String driverName = "org.apache.hadoop.hive.jdbc.HiveDriver";
public static void main(String args[])
{
try {
Class.forName(driverName);
}
catch (ClassNotFoundException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
System.exit(1);
}
try
{
Connection con = DriverManager.getConnection("jdbc:hive://localhost:10001/default", "", "");
Statement stmt = con.createStatement();
String tableName = "recordssss";
stmt.executeQuery("create table"+tableName+"(id int,name string)");
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
and then following error is display... because i have start hive as a hive server i.e
**$HIVE_HOME/bin/hive --service hiveserver -p 10001**
xception in thread "main" java.lang.NoSuchMethodError: org.apache.hadoop.hive.service.ThriftHive$Client.sendBase(Ljava/lang/String;Lorg/apache/thrift/TBase;)V
at org.apache.hadoop.hive.service.ThriftHive$Client.send_execute(ThriftHive.java:110)
at org.apache.hadoop.hive.service.ThriftHive$Client.execute(ThriftHive.java:102)
at org.apache.hadoop.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:187)
at org.apache.hadoop.hive.jdbc.HiveStatement.execute(HiveStatement.java:127)
at org.apache.hadoop.hive.jdbc.HiveConnection.configureConnection(HiveConnection.java:126)
at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:121)
at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:104)
at java.sql.DriverManager.getConnection(DriverManager.java:620)
at java.sql.DriverManager.getConnection(DriverManager.java:200)
at aa.Main.main(Main.java:25)
enter code here
so pls help me i have describe the problem to you so pls dear anyone help me
It seems like you are not using appropriate library in your client code. The jars you are using might be of wrong versions. Please check those once.