In
this blog we will know how to delete records from database using JDBC (Java
Database Connectivity) in console window.
Here
we use Type-1 driver (JDBC-ODBC bridge)
Creation of dsn(database source name) for Oracle
Start-Control
panel- Administrative Tools- Data Sources (ODBC)-go to system dsn tab-click add
button-select a driver for which you want to set up data source (for Oracle-
Oracle in XE)-select it and click finish-give any name in data source name
textbox-then click ok button.
Note:
- Here Username=system, Password=pintu and Dsn name=dsn1
Table Creation
Create
table employee (empno int,empname varchar(50),sal int)
Example:- To delete record from a table
/*To
delete record from a table by using Statement*/
import
java.sql.*;
import
java.util.*;
public
class delete
{
public
static void main(String args[]) throws Exception
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Scanner
sc=new Scanner(System.in);
Connection
con=DriverManager.getConnection("jdbc:odbc:dsn1","system","pintu");
Statement
stmt=con.createStatement();
System.out.print("Enter
lower limit salary: ");
int
lb=sc.nextInt();
System.out.print("Enter
upper limit salary: ");
int
ub=sc.nextInt();
String
sql="delete from employee where sal between "+lb+" and
"+ub;
int
no=stmt.executeUpdate(sql);
System.out.println(no
+" Records Successfully Deleted...");
con.close();
}
}
Compile
Javac
delete.java
Java
delete