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Showing content from https://www.tutorialspoint.com/javaexamples/jdbc_search.htm below:

How to Search contents of a table in Java

How to Search contents of a table?

Following method uses where & like sql Commands to search through the database.

import java.sql.*;

public class jdbcConn {
   public static void main(String[] args) throws Exception {
      Class.forName("org.apache.derby.jdbc.ClientDriver");
      Connection con = DriverManager.getConnection(
         "jdbc:derby://localhost:1527/testDb","username", "password");
      
      Statement stmt = con.createStatement();
      String query[] = {
         "SELECT * FROM emp where id = 1", 
         "select name from emp where name like 'ravi_'", 
         "select name from emp where name like 'ravi%'" 
      };
      
      for(String q : query) {
         ResultSet rs = stmt.executeQuery(q);
         System.out.println("Names for query "+q+" are");
         
         while (rs.next()) {
            String name = rs.getString("name");
            System.out.print(name+"  ");
         }
         System.out.println();
      }
   }
}

The above code sample will produce the following result.The result may vary.

Names for query SELECT * FROM emp where id=1 are
ravi  
Names for query select name from emp where name like 'ravi_' are
ravi2  ravi3  
Names for query select name from emp where name like 'ravi%' are
ravi  ravi2  ravi3  ravi123  ravi222  

java_jdbc.htm

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